Classroom index | Originals and full outcomes
06C | Reservation: single owner
Read the full outcome matrix before this selected trace
Read-only historical evidence. Original commands are never executed by the archive. Prepared exploratory task. Reservation reviewer independently discovers real defects, but the single baseline also passes; reviewer scratch-file and synthesis caveats remain. Ledger team times out before integration and fails a labeled post-hoc contract check despite passing the original checker. Scheduling has passing behavior with scope/lifecycle failures. See the full Workshop 6 audit.
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Work only in this workspace; no parent directories, other conversations, grading artifacts, network, credentials or installs. No commits or memory files. Use PYTHONDONTWRITEBYTECODE=1. README.md is the complete acceptance contract, existing tests are smoke tests. Implement and verify every requirement, add regression tests, then report concrete checks and changed files. Path constraints are instructions, not filesystem isolation. Finish the prepared project against README.md. Complete all review, implementation, testing and integration yourself without delegation. You may use any local standard-library probes and all information in the workspace.
Full event evidence
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}Tool request: terminal
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}Full event evidence
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total 24
drwxr-xr-x@ 6 instructor.shah wheel 192 Oct 18 20:07 .
drwxr-xr-x@ 3 instructor.shah wheel 96 Oct 18 20:07 ..
drwxr-xr-x@ 9 instructor.shah wheel 288 Oct 18 20:07 .git
-rw-r--r--@ 1 instructor.shah wheel 1006 Oct 18 20:07 README.md
-rw-r--r--@ 1 instructor.shah wheel 511 Oct 18 20:07 inventory.py
-rw-r--r--@ 1 instructor.shah wheel 205 Oct 18 20:07 test_inventory.py
/private/tmp/odsc-workshop6-v2/reservation-single-t1
Full event evidence
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Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/reservation-single-t1/README.md:
1 Prepared candidate: defects intentionally seeded, not a historical agent failure.
2 Implement Inventory(stock), reserve(request_id, lines), cancel(request_id), snapshot(). stock is a dict of SKU to nonnegative integer. lines is a list of (SKU, positive integer quantity). Repeated SKU quantities add. reserve returns True if all quantities are available and deducts them atomically; otherwise False with no mutation. Unknown SKU or nonpositive quantity returns False. Empty lines succeeds. Successful request IDs are idempotent: an exact replay (same aggregate quantities, order irrelevant) returns True without deduction; a different payload for an active ID returns False. Failed requests are not remembered. cancel returns True exactly once for an active successful request and restores its stock; absent or already cancelled IDs return False. A cancelled ID may be reused. snapshot returns a detached dict. Constructor must copy input. No concurrency. Only inventory.py and test_inventory.py may change.
3Full event evidence
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"text": "Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/reservation-single-t1/README.md:\n 1\tPrepared candidate: defects intentionally seeded, not a historical agent failure.\n 2\tImplement Inventory(stock), reserve(request_id, lines), cancel(request_id), snapshot(). stock is a dict of SKU to nonnegative integer. lines is a list of (SKU, positive integer quantity). Repeated SKU quantities add. reserve returns True if all quantities are available and deducts them atomically; otherwise False with no mutation. Unknown SKU or nonpositive quantity returns False. Empty lines succeeds. Successful request IDs are idempotent: an exact replay (same aggregate quantities, order irrelevant) returns True without deduction; a different payload for an active ID returns False. Failed requests are not remembered. cancel returns True exactly once for an active successful request and restores its stock; absent or already cancelled IDs return False. A cancelled ID may be reused. snapshot returns a detached dict. Constructor must copy input. No concurrency. Only inventory.py and test_inventory.py may change.\n 3\t\n"
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}Tool request: file_editor
{
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}Full event evidence
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"summary": "file_editor: {\"command\": \"view\", \"path\": \"/private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py\"}",
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}Tool request: file_editor
{
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}Full event evidence
{
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"kind": "ActionEvent"
}Tool result: file_editor
Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py:
1 class Inventory:
2 def __init__(self, stock): self.stock=stock; self.requests={}
3 def reserve(self, request_id, lines):
4 if request_id in self.requests: return True
5 for sku,n in lines:
6 if self.stock.get(sku,0)<n: return False
7 self.stock[sku]-=n
8 self.requests[request_id]=dict(lines)
9 return True
10 def cancel(self, request_id):
11 if request_id not in self.requests: return False
12 for sku,n in self.requests[request_id].items(): self.stock[sku]+=n
13 return True
14 def snapshot(self): return self.stock
15Full event evidence
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"timestamp": "2026-10-18T20:07:14.525672",
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{
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"text": "Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py:\n 1\tclass Inventory:\n 2\t def __init__(self, stock): self.stock=stock; self.requests={}\n 3\t def reserve(self, request_id, lines):\n 4\t if request_id in self.requests: return True\n 5\t for sku,n in lines:\n 6\t if self.stock.get(sku,0)<n: return False\n 7\t self.stock[sku]-=n\n 8\t self.requests[request_id]=dict(lines)\n 9\t return True\n 10\t def cancel(self, request_id):\n 11\t if request_id not in self.requests: return False\n 12\t for sku,n in self.requests[request_id].items(): self.stock[sku]+=n\n 13\t return True\n 14\t def snapshot(self): return self.stock\n 15\t\n"
}
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}Tool result: file_editor
Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py:
1 import unittest
2 from inventory import Inventory
3 class Smoke(unittest.TestCase):
4 def test_one(self):
5 x=Inventory({'a':3});self.assertTrue(x.reserve('r',[('a',1)]));self.assertEqual(x.snapshot(),{'a':2})
6Full event evidence
{
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{
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"text": "Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py:\n 1\timport unittest\n 2\tfrom inventory import Inventory\n 3\tclass Smoke(unittest.TestCase):\n 4\t def test_one(self):\n 5\t x=Inventory({'a':3});self.assertTrue(x.reserve('r',[('a',1)]));self.assertEqual(x.snapshot(),{'a':2})\n 6\t\n"
}
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}ConversationStateUpdateEvent
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}Tool request: think
{
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}Full event evidence
{
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"timestamp": "2026-10-18T20:08:41.380962",
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"arguments": "{\"thought\": \"Seeded defects in inventory.py:\\n1. `__init__` aliases input stock \\u2014 violates \\\"Constructor must copy input.\\\"\\n2. `self.requests[request_id]=dict(lines)` collapses repeated SKUs (last wins) \\u2014 cancel restores the wrong amount.\\n3. No nonpositive quantity check \\u2014 qty 0 accepted, negative adds stock.\\n4. Sequential deduction without aggregation \\u2014 partial mutation on failure (atomicity violation).\\n5. Idempotency branch returns True for ANY repeat regardless of payload \\u2014 \\\"different payload for an active ID\\\" must return False.\\n6. `snapshot()` returns the live dict \\u2014 must be detached.\\n7. `cancel` doesn't remove the entry \\u2014 a second cancel re-restores and returns True (must be exactly-once), and a cancelled ID can't be reused (replay branch intercepts it).\\n\\nAlso unknown-SKU already returns False via get(sku,0), but combined with defect 4 it can partially mutate; fixed by validation before any deduction and aggregation.\\n\\nImplementation plan: rewrite inventory.py with aggregate-first logic, store aggregated quantities, validate nonpositive/unknown before idempotency/availability, cancel deletes the entry, snapshot copies. Then build a comprehensive unittest suite covering every README clause.\"}",
"origin": "completion"
},
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"summary": "think: {\"thought\": \"Seeded defects in inventory.py:\\n1. `__init__` aliases input stock \\u2014 violates \\\"Constructor must copy input.\\\"\\n2. `self.requests[request_id]=dict(lines)` collapses repeated SKUs (last wins) \\u2014 cancel restores the wrong amount.\\n3. No nonpositive quantity check \\u2014 qty 0 accepted, negative adds stock.\\n4. Sequential deduction without aggregation \\u2014 partial mutation on failure (atomicity violation).\\n5. Idempotency branch returns True for ANY repeat regardless of payload \\u2014 \\\"different payload for an active ID\\\" must return False.\\n6. `snapshot()` returns the live dict \\u2014 must be detached.\\n7. `cancel` doesn't remove the entry \\u2014 a second cancel re-restores and returns True (must be exactly-once), and a cancelled ID can't be reused (replay branch intercepts it).\\n\\nAlso unknown-SKU already returns False via get(sku,0), but combined with defect 4 it can partially mutate; fixed by validation before any deduction and aggregation.\\n\\nImplementation plan: rewrite inventory.py with aggregate-first logic, store aggregated quantities, validate nonpositive/unknown before idempotency/availability, cancel deletes the entry, snapshot copies. Then build a comprehensive unittest suite covering every README clause.\"}",
"kind": "ActionEvent"
}Tool result: think
Your thought has been logged.
Full event evidence
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}Tool request: file_editor
{
"command": "str_replace",
"path": "/private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py",
"old_str": "class Inventory:\n def __init__(self, stock): self.stock=stock; self.requests={}\n def reserve(self, request_id, lines):\n if request_id in self.requests: return True\n for sku,n in lines:\n if self.stock.get(sku,0)<n: return False\n self.stock[sku]-=n\n self.requests[request_id]=dict(lines)\n return True\n def cancel(self, request_id):\n if request_id not in self.requests: return False\n for sku,n in self.requests[request_id].items(): self.stock[sku]+=n\n return True\n def snapshot(self): return self.stock",
"new_str": "class Inventory:\n def __init__(self, stock):\n self.stock = dict(stock)\n self.requests = {}\n\n def reserve(self, request_id, lines):\n if request_id in self.requests:\n return self.requests[request_id] == self._aggregate(lines)\n aggregate = self._aggregate(lines)\n if aggregate is None:\n return False\n for sku, n in aggregate.items():\n if self.stock.get(sku, 0) < n:\n return False\n for sku, n in aggregate.items():\n self.stock[sku] -= n\n self.requests[request_id] = aggregate\n return True\n\n def cancel(self, request_id):\n if request_id not in self.requests:\n return False\n for sku, n in self.requests[request_id].items():\n self.stock[sku] += n\n del self.requests[request_id]\n return True\n\n def snapshot(self):\n return dict(self.stock)\n\n @staticmethod\n def _aggregate(lines):\n total = {}\n for sku, n in lines:\n if not isinstance(sku, str) or not isinstance(n, int) or n <= 0:\n return None\n total[sku] = total.get(sku, 0) + n\n return total",
"kind": "FileEditorAction"
}Full event evidence
{
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"source": "agent",
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"thought": [],
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"action": {
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"path": "/private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py",
"old_str": "class Inventory:\n def __init__(self, stock): self.stock=stock; self.requests={}\n def reserve(self, request_id, lines):\n if request_id in self.requests: return True\n for sku,n in lines:\n if self.stock.get(sku,0)<n: return False\n self.stock[sku]-=n\n self.requests[request_id]=dict(lines)\n return True\n def cancel(self, request_id):\n if request_id not in self.requests: return False\n for sku,n in self.requests[request_id].items(): self.stock[sku]+=n\n return True\n def snapshot(self): return self.stock",
"new_str": "class Inventory:\n def __init__(self, stock):\n self.stock = dict(stock)\n self.requests = {}\n\n def reserve(self, request_id, lines):\n if request_id in self.requests:\n return self.requests[request_id] == self._aggregate(lines)\n aggregate = self._aggregate(lines)\n if aggregate is None:\n return False\n for sku, n in aggregate.items():\n if self.stock.get(sku, 0) < n:\n return False\n for sku, n in aggregate.items():\n self.stock[sku] -= n\n self.requests[request_id] = aggregate\n return True\n\n def cancel(self, request_id):\n if request_id not in self.requests:\n return False\n for sku, n in self.requests[request_id].items():\n self.stock[sku] += n\n del self.requests[request_id]\n return True\n\n def snapshot(self):\n return dict(self.stock)\n\n @staticmethod\n def _aggregate(lines):\n total = {}\n for sku, n in lines:\n if not isinstance(sku, str) or not isinstance(n, int) or n <= 0:\n return None\n total[sku] = total.get(sku, 0) + n\n return total",
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},
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"arguments": "{\"command\": \"str_replace\", \"path\": \"/private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py\", \"old_str\": \"class Inventory:\\n def __init__(self, stock): self.stock=stock; self.requests={}\\n def reserve(self, request_id, lines):\\n if request_id in self.requests: return True\\n for sku,n in lines:\\n if self.stock.get(sku,0)<n: return False\\n self.stock[sku]-=n\\n self.requests[request_id]=dict(lines)\\n return True\\n def cancel(self, request_id):\\n if request_id not in self.requests: return False\\n for sku,n in self.requests[request_id].items(): self.stock[sku]+=n\\n return True\\n def snapshot(self): return self.stock\", \"new_str\": \"class Inventory:\\n def __init__(self, stock):\\n self.stock = dict(stock)\\n self.requests = {}\\n\\n def reserve(self, request_id, lines):\\n if request_id in self.requests:\\n return self.requests[request_id] == self._aggregate(lines)\\n aggregate = self._aggregate(lines)\\n if aggregate is None:\\n return False\\n for sku, n in aggregate.items():\\n if self.stock.get(sku, 0) < n:\\n return False\\n for sku, n in aggregate.items():\\n self.stock[sku] -= n\\n self.requests[request_id] = aggregate\\n return True\\n\\n def cancel(self, request_id):\\n if request_id not in self.requests:\\n return False\\n for sku, n in self.requests[request_id].items():\\n self.stock[sku] += n\\n del self.requests[request_id]\\n return True\\n\\n def snapshot(self):\\n return dict(self.stock)\\n\\n @staticmethod\\n def _aggregate(lines):\\n total = {}\\n for sku, n in lines:\\n if not isinstance(sku, str) or not isinstance(n, int) or n <= 0:\\n return None\\n total[sku] = total.get(sku, 0) + n\\n return total\"}",
"origin": "completion"
},
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"summary": "file_editor: {\"command\": \"str_replace\", \"path\": \"/private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py\", \"old_str\": \"class Inventory:\\n def __init__(self, stock): self.stock=stock; self.requests={}\\n def reserve(self, request_id, lines):\\n if request_id in self.requests: return True\\n for sku,n in lines:\\n if self.stock.get(sku,0)<n: return False\\n self.stock[sku]-=n\\n self.requests[request_id]=dict(lines)\\n return True\\n def cancel(self, request_id):\\n if request_id not in self.requests: return False\\n for sku,n in self.requests[request_id].items(): self.stock[sku]+=n\\n return True\\n def snapshot(self): return self.stock\", \"new_str\": \"class Inventory:\\n def __init__(self, stock):\\n self.stock = dict(stock)\\n self.requests = {}\\n\\n def reserve(self, request_id, lines):\\n if request_id in self.requests:\\n return self.requests[request_id] == self._aggregate(lines)\\n aggregate = self._aggregate(lines)\\n if aggregate is None:\\n return False\\n for sku, n in aggregate.items():\\n if self.stock.get(sku, 0) < n:\\n return False\\n for sku, n in aggregate.items():\\n self.stock[sku] -= n\\n self.requests[request_id] = aggregate\\n return True\\n\\n def cancel(self, request_id):\\n if request_id not in self.requests:\\n return False\\n for sku, n in self.requests[request_id].items():\\n self.stock[sku] += n\\n del self.requests[request_id]\\n return True\\n\\n def snapshot(self):\\n return dict(self.stock)\\n\\n @staticmethod\\n def _aggregate(lines):\\n total = {}\\n for sku, n in lines:\\n if not isinstance(sku, str) or not isinstance(n, int) or n <= 0:\\n return None\\n total[sku] = total.get(sku, 0) + n\\n return total\"}",
"kind": "ActionEvent"
}Tool result: file_editor
The file /private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py has been edited. Here's the result of running `cat -n` on a snippet of /private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py:
1 class Inventory:
2 def __init__(self, stock):
3 self.stock = dict(stock)
4 self.requests = {}
5
6 def reserve(self, request_id, lines):
7 if request_id in self.requests:
8 return self.requests[request_id] == self._aggregate(lines)
9 aggregate = self._aggregate(lines)
10 if aggregate is None:
11 return False
12 for sku, n in aggregate.items():
13 if self.stock.get(sku, 0) < n:
14 return False
15 for sku, n in aggregate.items():
16 self.stock[sku] -= n
17 self.requests[request_id] = aggregate
18 return True
19
20 def cancel(self, request_id):
21 if request_id not in self.requests:
22 return False
23 for sku, n in self.requests[request_id].items():
24 self.stock[sku] += n
25 del self.requests[request_id]
26 return True
27
28 def snapshot(self):
29 return dict(self.stock)
30
31 @staticmethod
32 def _aggregate(lines):
33 total = {}
34 for sku, n in lines:
35 if not isinstance(sku, str) or not isinstance(n, int) or n <= 0:
36 return None
37 total[sku] = total.get(sku, 0) + n
38 return total
39
Review the changes and make sure they are as expected. Edit the file again if necessary.Full event evidence
{
"id": "ce0a090a-7176-4383-b74f-0029622cbbe4",
"timestamp": "2026-10-18T20:08:44.856590",
"source": "environment",
"parent_id": "5c268063-5f04-43b6-9460-a0d2c8fb91e4",
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"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "The file /private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py has been edited. Here's the result of running `cat -n` on a snippet of /private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py:\n 1\tclass Inventory:\n 2\t def __init__(self, stock):\n 3\t self.stock = dict(stock)\n 4\t self.requests = {}\n 5\t\n 6\t def reserve(self, request_id, lines):\n 7\t if request_id in self.requests:\n 8\t return self.requests[request_id] == self._aggregate(lines)\n 9\t aggregate = self._aggregate(lines)\n 10\t if aggregate is None:\n 11\t return False\n 12\t for sku, n in aggregate.items():\n 13\t if self.stock.get(sku, 0) < n:\n 14\t return False\n 15\t for sku, n in aggregate.items():\n 16\t self.stock[sku] -= n\n 17\t self.requests[request_id] = aggregate\n 18\t return True\n 19\t\n 20\t def cancel(self, request_id):\n 21\t if request_id not in self.requests:\n 22\t return False\n 23\t for sku, n in self.requests[request_id].items():\n 24\t self.stock[sku] += n\n 25\t del self.requests[request_id]\n 26\t return True\n 27\t\n 28\t def snapshot(self):\n 29\t return dict(self.stock)\n 30\t\n 31\t @staticmethod\n 32\t def _aggregate(lines):\n 33\t total = {}\n 34\t for sku, n in lines:\n 35\t if not isinstance(sku, str) or not isinstance(n, int) or n <= 0:\n 36\t return None\n 37\t total[sku] = total.get(sku, 0) + n\n 38\t return total\n 39\t\nReview the changes and make sure they are as expected. Edit the file again if necessary."
}
],
"is_error": false,
"command": "str_replace",
"path": "/private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py",
"prev_exist": true,
"old_content": "class Inventory:\n def __init__(self, stock): self.stock=stock; self.requests={}\n def reserve(self, request_id, lines):\n if request_id in self.requests: return True\n for sku,n in lines:\n if self.stock.get(sku,0)<n: return False\n self.stock[sku]-=n\n self.requests[request_id]=dict(lines)\n return True\n def cancel(self, request_id):\n if request_id not in self.requests: return False\n for sku,n in self.requests[request_id].items(): self.stock[sku]+=n\n return True\n def snapshot(self): return self.stock\n",
"new_content": "class Inventory:\n def __init__(self, stock):\n self.stock = dict(stock)\n self.requests = {}\n\n def reserve(self, request_id, lines):\n if request_id in self.requests:\n return self.requests[request_id] == self._aggregate(lines)\n aggregate = self._aggregate(lines)\n if aggregate is None:\n return False\n for sku, n in aggregate.items():\n if self.stock.get(sku, 0) < n:\n return False\n for sku, n in aggregate.items():\n self.stock[sku] -= n\n self.requests[request_id] = aggregate\n return True\n\n def cancel(self, request_id):\n if request_id not in self.requests:\n return False\n for sku, n in self.requests[request_id].items():\n self.stock[sku] += n\n del self.requests[request_id]\n return True\n\n def snapshot(self):\n return dict(self.stock)\n\n @staticmethod\n def _aggregate(lines):\n total = {}\n for sku, n in lines:\n if not isinstance(sku, str) or not isinstance(n, int) or n <= 0:\n return None\n total[sku] = total.get(sku, 0) + n\n return total\n",
"kind": "FileEditorObservation"
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"kind": "ObservationEvent"
}ConversationStateUpdateEvent
{
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"source": "environment",
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}Tool request: file_editor
{
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"path": "/private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py",
"old_str": "@staticmethod\n def _aggregate(lines):\n total = {}\n for sku, n in lines:\n if not isinstance(sku, str) or not isinstance(n, int) or n <= 0:\n return None\n total[sku] = total.get(sku, 0) + n\n return total",
"new_str": "@staticmethod\n def _aggregate(lines):\n total = {}\n for sku, n in lines:\n if isinstance(n, bool) or not isinstance(n, int) or n <= 0:\n return None\n total[sku] = total.get(sku, 0) + n\n return total",
"kind": "FileEditorAction"
}Full event evidence
{
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"timestamp": "2026-10-18T20:08:58.583062",
"source": "agent",
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"new_str": "@staticmethod\n def _aggregate(lines):\n total = {}\n for sku, n in lines:\n if isinstance(n, bool) or not isinstance(n, int) or n <= 0:\n return None\n total[sku] = total.get(sku, 0) + n\n return total",
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"name": "file_editor",
"arguments": "{\"command\": \"str_replace\", \"path\": \"/private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py\", \"old_str\": \"@staticmethod\\n def _aggregate(lines):\\n total = {}\\n for sku, n in lines:\\n if not isinstance(sku, str) or not isinstance(n, int) or n <= 0:\\n return None\\n total[sku] = total.get(sku, 0) + n\\n return total\", \"new_str\": \"@staticmethod\\n def _aggregate(lines):\\n total = {}\\n for sku, n in lines:\\n if isinstance(n, bool) or not isinstance(n, int) or n <= 0:\\n return None\\n total[sku] = total.get(sku, 0) + n\\n return total\"}",
"origin": "completion"
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"summary": "file_editor: {\"command\": \"str_replace\", \"path\": \"/private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py\", \"old_str\": \"@staticmethod\\n def _aggregate(lines):\\n total = {}\\n for sku, n in lines:\\n if not isinstance(sku, str) or not isinstance(n, int) or n <= 0:\\n return None\\n total[sku] = total.get(sku, 0) + n\\n return total\", \"new_str\": \"@staticmethod\\n def _aggregate(lines):\\n total = {}\\n for sku, n in lines:\\n if isinstance(n, bool) or not isinstance(n, int) or n <= 0:\\n return None\\n total[sku] = total.get(sku, 0) + n\\n return total\"}",
"kind": "ActionEvent"
}Tool result: file_editor
The file /private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py has been edited. Here's the result of running `cat -n` on a snippet of /private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py:
28 def snapshot(self):
29 return dict(self.stock)
30
31 @staticmethod
32 def _aggregate(lines):
33 total = {}
34 for sku, n in lines:
35 if isinstance(n, bool) or not isinstance(n, int) or n <= 0:
36 return None
37 total[sku] = total.get(sku, 0) + n
38 return total
39
Review the changes and make sure they are as expected. Edit the file again if necessary.Full event evidence
{
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"timestamp": "2026-10-18T20:08:58.600394",
"source": "environment",
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"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "The file /private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py has been edited. Here's the result of running `cat -n` on a snippet of /private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py:\n 28\t def snapshot(self):\n 29\t return dict(self.stock)\n 30\t\n 31\t @staticmethod\n 32\t def _aggregate(lines):\n 33\t total = {}\n 34\t for sku, n in lines:\n 35\t if isinstance(n, bool) or not isinstance(n, int) or n <= 0:\n 36\t return None\n 37\t total[sku] = total.get(sku, 0) + n\n 38\t return total\n 39\t\nReview the changes and make sure they are as expected. Edit the file again if necessary."
}
],
"is_error": false,
"command": "str_replace",
"path": "/private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py",
"prev_exist": true,
"old_content": "class Inventory:\n def __init__(self, stock):\n self.stock = dict(stock)\n self.requests = {}\n\n def reserve(self, request_id, lines):\n if request_id in self.requests:\n return self.requests[request_id] == self._aggregate(lines)\n aggregate = self._aggregate(lines)\n if aggregate is None:\n return False\n for sku, n in aggregate.items():\n if self.stock.get(sku, 0) < n:\n return False\n for sku, n in aggregate.items():\n self.stock[sku] -= n\n self.requests[request_id] = aggregate\n return True\n\n def cancel(self, request_id):\n if request_id not in self.requests:\n return False\n for sku, n in self.requests[request_id].items():\n self.stock[sku] += n\n del self.requests[request_id]\n return True\n\n def snapshot(self):\n return dict(self.stock)\n\n @staticmethod\n def _aggregate(lines):\n total = {}\n for sku, n in lines:\n if not isinstance(sku, str) or not isinstance(n, int) or n <= 0:\n return None\n total[sku] = total.get(sku, 0) + n\n return total\n",
"new_content": "class Inventory:\n def __init__(self, stock):\n self.stock = dict(stock)\n self.requests = {}\n\n def reserve(self, request_id, lines):\n if request_id in self.requests:\n return self.requests[request_id] == self._aggregate(lines)\n aggregate = self._aggregate(lines)\n if aggregate is None:\n return False\n for sku, n in aggregate.items():\n if self.stock.get(sku, 0) < n:\n return False\n for sku, n in aggregate.items():\n self.stock[sku] -= n\n self.requests[request_id] = aggregate\n return True\n\n def cancel(self, request_id):\n if request_id not in self.requests:\n return False\n for sku, n in self.requests[request_id].items():\n self.stock[sku] += n\n del self.requests[request_id]\n return True\n\n def snapshot(self):\n return dict(self.stock)\n\n @staticmethod\n def _aggregate(lines):\n total = {}\n for sku, n in lines:\n if isinstance(n, bool) or not isinstance(n, int) or n <= 0:\n return None\n total[sku] = total.get(sku, 0) + n\n return total\n",
"kind": "FileEditorObservation"
},
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"kind": "ObservationEvent"
}ConversationStateUpdateEvent
{
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}
},
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}
}
}
},
"kind": "ConversationStateUpdateEvent"
}Tool request: file_editor
{
"command": "str_replace",
"path": "/private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py",
"old_str": "import unittest\nfrom inventory import Inventory\nclass Smoke(unittest.TestCase):\n def test_one(self):\n x=Inventory({'a':3});self.assertTrue(x.reserve('r',[('a',1)]));self.assertEqual(x.snapshot(),{'a':2})",
"new_str": "import unittest\nfrom inventory import Inventory\n\n\nclass OriginalSmoke(unittest.TestCase):\n def test_one(self):\n x = Inventory({'a': 3})\n self.assertTrue(x.reserve('r', [('a', 1)]))\n self.assertEqual(x.snapshot(), {'a': 2})\n\n\nclass ConstructorTests(unittest.TestCase):\n def test_copies_input_dict(self):\n stock = {'a': 3, 'b': 2}\n inv = Inventory(stock)\n stock['a'] = 999\n stock['c'] = 7\n self.assertEqual(inv.snapshot(), {'a': 3, 'b': 2})\n\n def test_copies_input_skus(self):\n skus = ['x', 'y']\n inv = Inventory({skus[0]: 1})\n skus.append('z')\n self.assertEqual(inv.snapshot(), {'x': 1})\n\n\nclass ReserveTests(unittest.TestCase):\n def test_success_deducts(self):\n inv = Inventory({'a': 10, 'b': 5})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 7, 'b': 3})\n\n def test_insufficient_stock_returns_false(self):\n inv = Inventory({'a': 2})\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_failure_is_atomic_across_lines(self):\n inv = Inventory({'a': 5, 'b': 1})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 2), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 1})\n\n def test_unknown_sku_returns_false_without_mutation(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', 1), ('ghost', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_unknown_sku_single_line_returns_false(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('nope', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_repeated_sku_lines_aggregate_in_place(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_nonpositive_quantity_returns_false(self):\n for qty in (0, -3):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', qty)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_nonpositive_quantity_fails_atomically_even_after_valid_lines(self):\n inv = Inventory({'a': 5, 'b': 5})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', -1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 5})\n\n def test_empty_lines_succeeds(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', []))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_large_success_deducts_aggregate(self):\n inv = Inventory({'a': 3, 'b': 4})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1), ('a', 1), ('b', 4)]))\n self.assertEqual(inv.snapshot(), {'a': 0, 'b': 0})\n\n def test_two_independent_requests_coexist(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.reserve('r2', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 3})\n\n\nclass IdempotencyTests(unittest.TestCase):\n def test_exact_replay_returns_true_without_deduction(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 7})\n\n def test_replay_order_irrelevant(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2), ('b', 3)]))\n self.assertTrue(inv.reserve('r1', [('b', 3), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 7})\n\n def test_replay_with_split_lines_same_aggregate(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_quantity_for_active_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_sku_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_different_skus_list_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_failed_request_is_not_remembered(self):\n inv = Inventory({'a': 1})\n self.assertFalse(inv.reserve('r1', [('a', 5)]))\n self.assertTrue(inv.reserve('r1', [('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 0})\n\n def test_replay_payload_with_nonpositive_quantity_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 0)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n\nclass CancelTests(unittest.TestCase):\n def test_cancel_restores_stock(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10, 'b': 10})\n\n def test_cancel_exactly_once(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertFalse(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancel_of_absent_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertFalse(inv.cancel('nope'))\n\n def test_cancel_restores_aggregated_repeated_skus(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_cancelled_id_can_be_reused(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertTrue(inv.reserve('r1', [('a', 6)]))\n self.assertEqual(inv.snapshot(), {'a': 4})\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancelling_one_request_leaves_others_intact(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r2', [('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 9})\n self.assertFalse(inv.reserve('r2', [('a', 2)])) # still active, replay wrong payload\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n self.assertEqual(inv.snapshot(), {'a': 9})\n\n\nclass SnapshotTests(unittest.TestCase):\n def test_snapshot_detached_from_inventory(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertEqual(snap, {'a': 5})\n\n def test_snapshot_detached_from_caller(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n snap['a'] = 999\n snap['z'] = 1\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n\nif __name__ == '__main__':\n unittest.main()",
"kind": "FileEditorAction"
}Full event evidence
{
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"timestamp": "2026-10-18T20:09:17.998752",
"source": "agent",
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"path": "/private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py",
"old_str": "import unittest\nfrom inventory import Inventory\nclass Smoke(unittest.TestCase):\n def test_one(self):\n x=Inventory({'a':3});self.assertTrue(x.reserve('r',[('a',1)]));self.assertEqual(x.snapshot(),{'a':2})",
"new_str": "import unittest\nfrom inventory import Inventory\n\n\nclass OriginalSmoke(unittest.TestCase):\n def test_one(self):\n x = Inventory({'a': 3})\n self.assertTrue(x.reserve('r', [('a', 1)]))\n self.assertEqual(x.snapshot(), {'a': 2})\n\n\nclass ConstructorTests(unittest.TestCase):\n def test_copies_input_dict(self):\n stock = {'a': 3, 'b': 2}\n inv = Inventory(stock)\n stock['a'] = 999\n stock['c'] = 7\n self.assertEqual(inv.snapshot(), {'a': 3, 'b': 2})\n\n def test_copies_input_skus(self):\n skus = ['x', 'y']\n inv = Inventory({skus[0]: 1})\n skus.append('z')\n self.assertEqual(inv.snapshot(), {'x': 1})\n\n\nclass ReserveTests(unittest.TestCase):\n def test_success_deducts(self):\n inv = Inventory({'a': 10, 'b': 5})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 7, 'b': 3})\n\n def test_insufficient_stock_returns_false(self):\n inv = Inventory({'a': 2})\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_failure_is_atomic_across_lines(self):\n inv = Inventory({'a': 5, 'b': 1})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 2), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 1})\n\n def test_unknown_sku_returns_false_without_mutation(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', 1), ('ghost', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_unknown_sku_single_line_returns_false(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('nope', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_repeated_sku_lines_aggregate_in_place(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_nonpositive_quantity_returns_false(self):\n for qty in (0, -3):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', qty)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_nonpositive_quantity_fails_atomically_even_after_valid_lines(self):\n inv = Inventory({'a': 5, 'b': 5})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', -1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 5})\n\n def test_empty_lines_succeeds(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', []))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_large_success_deducts_aggregate(self):\n inv = Inventory({'a': 3, 'b': 4})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1), ('a', 1), ('b', 4)]))\n self.assertEqual(inv.snapshot(), {'a': 0, 'b': 0})\n\n def test_two_independent_requests_coexist(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.reserve('r2', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 3})\n\n\nclass IdempotencyTests(unittest.TestCase):\n def test_exact_replay_returns_true_without_deduction(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 7})\n\n def test_replay_order_irrelevant(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2), ('b', 3)]))\n self.assertTrue(inv.reserve('r1', [('b', 3), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 7})\n\n def test_replay_with_split_lines_same_aggregate(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_quantity_for_active_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_sku_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_different_skus_list_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_failed_request_is_not_remembered(self):\n inv = Inventory({'a': 1})\n self.assertFalse(inv.reserve('r1', [('a', 5)]))\n self.assertTrue(inv.reserve('r1', [('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 0})\n\n def test_replay_payload_with_nonpositive_quantity_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 0)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n\nclass CancelTests(unittest.TestCase):\n def test_cancel_restores_stock(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10, 'b': 10})\n\n def test_cancel_exactly_once(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertFalse(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancel_of_absent_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertFalse(inv.cancel('nope'))\n\n def test_cancel_restores_aggregated_repeated_skus(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_cancelled_id_can_be_reused(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertTrue(inv.reserve('r1', [('a', 6)]))\n self.assertEqual(inv.snapshot(), {'a': 4})\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancelling_one_request_leaves_others_intact(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r2', [('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 9})\n self.assertFalse(inv.reserve('r2', [('a', 2)])) # still active, replay wrong payload\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n self.assertEqual(inv.snapshot(), {'a': 9})\n\n\nclass SnapshotTests(unittest.TestCase):\n def test_snapshot_detached_from_inventory(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertEqual(snap, {'a': 5})\n\n def test_snapshot_detached_from_caller(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n snap['a'] = 999\n snap['z'] = 1\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n\nif __name__ == '__main__':\n unittest.main()",
"kind": "FileEditorAction"
},
"tool_name": "file_editor",
"tool_call_id": "call_1ea9f21cca204785bc4cb0ed",
"tool_call": {
"id": "call_1ea9f21cca204785bc4cb0ed",
"name": "file_editor",
"arguments": "{\"command\": \"str_replace\", \"path\": \"/private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py\", \"old_str\": \"import unittest\\nfrom inventory import Inventory\\nclass Smoke(unittest.TestCase):\\n def test_one(self):\\n x=Inventory({'a':3});self.assertTrue(x.reserve('r',[('a',1)]));self.assertEqual(x.snapshot(),{'a':2})\", \"new_str\": \"import unittest\\nfrom inventory import Inventory\\n\\n\\nclass OriginalSmoke(unittest.TestCase):\\n def test_one(self):\\n x = Inventory({'a': 3})\\n self.assertTrue(x.reserve('r', [('a', 1)]))\\n self.assertEqual(x.snapshot(), {'a': 2})\\n\\n\\nclass ConstructorTests(unittest.TestCase):\\n def test_copies_input_dict(self):\\n stock = {'a': 3, 'b': 2}\\n inv = Inventory(stock)\\n stock['a'] = 999\\n stock['c'] = 7\\n self.assertEqual(inv.snapshot(), {'a': 3, 'b': 2})\\n\\n def test_copies_input_skus(self):\\n skus = ['x', 'y']\\n inv = Inventory({skus[0]: 1})\\n skus.append('z')\\n self.assertEqual(inv.snapshot(), {'x': 1})\\n\\n\\nclass ReserveTests(unittest.TestCase):\\n def test_success_deducts(self):\\n inv = Inventory({'a': 10, 'b': 5})\\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 2)]))\\n self.assertEqual(inv.snapshot(), {'a': 7, 'b': 3})\\n\\n def test_insufficient_stock_returns_false(self):\\n inv = Inventory({'a': 2})\\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\\n self.assertEqual(inv.snapshot(), {'a': 2})\\n\\n def test_failure_is_atomic_across_lines(self):\\n inv = Inventory({'a': 5, 'b': 1})\\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 2), ('a', 1)]))\\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 1})\\n\\n def test_unknown_sku_returns_false_without_mutation(self):\\n inv = Inventory({'a': 5})\\n self.assertFalse(inv.reserve('r1', [('a', 1), ('ghost', 1)]))\\n self.assertEqual(inv.snapshot(), {'a': 5})\\n\\n def test_unknown_sku_single_line_returns_false(self):\\n inv = Inventory({'a': 5})\\n self.assertFalse(inv.reserve('r1', [('nope', 1)]))\\n self.assertEqual(inv.snapshot(), {'a': 5})\\n\\n def test_repeated_sku_lines_aggregate_in_place(self):\\n inv = Inventory({'a': 5})\\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\\n self.assertEqual(inv.snapshot(), {'a': 2})\\n\\n def test_nonpositive_quantity_returns_false(self):\\n for qty in (0, -3):\\n inv = Inventory({'a': 5})\\n self.assertFalse(inv.reserve('r1', [('a', qty)]))\\n self.assertEqual(inv.snapshot(), {'a': 5})\\n\\n def test_nonpositive_quantity_fails_atomically_even_after_valid_lines(self):\\n inv = Inventory({'a': 5, 'b': 5})\\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', -1)]))\\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 5})\\n\\n def test_empty_lines_succeeds(self):\\n inv = Inventory({'a': 5})\\n self.assertTrue(inv.reserve('r1', []))\\n self.assertEqual(inv.snapshot(), {'a': 5})\\n\\n def test_large_success_deducts_aggregate(self):\\n inv = Inventory({'a': 3, 'b': 4})\\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1), ('a', 1), ('b', 4)]))\\n self.assertEqual(inv.snapshot(), {'a': 0, 'b': 0})\\n\\n def test_two_independent_requests_coexist(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\\n self.assertTrue(inv.reserve('r2', [('a', 3)]))\\n self.assertEqual(inv.snapshot(), {'a': 3})\\n\\n\\nclass IdempotencyTests(unittest.TestCase):\\n def test_exact_replay_returns_true_without_deduction(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\\n self.assertEqual(inv.snapshot(), {'a': 7})\\n\\n def test_replay_order_irrelevant(self):\\n inv = Inventory({'a': 10, 'b': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 2), ('b', 3)]))\\n self.assertTrue(inv.reserve('r1', [('b', 3), ('a', 2)]))\\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 7})\\n\\n def test_replay_with_split_lines_same_aggregate(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1)]))\\n self.assertEqual(inv.snapshot(), {'a': 8})\\n\\n def test_different_quantity_for_active_id_returns_false(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\\n self.assertEqual(inv.snapshot(), {'a': 8})\\n\\n def test_different_sku_for_active_id_returns_false(self):\\n inv = Inventory({'a': 10, 'b': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\\n self.assertFalse(inv.reserve('r1', [('b', 2)]))\\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\\n\\n def test_different_skus_list_for_active_id_returns_false(self):\\n inv = Inventory({'a': 10, 'b': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 1)]))\\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\\n\\n def test_failed_request_is_not_remembered(self):\\n inv = Inventory({'a': 1})\\n self.assertFalse(inv.reserve('r1', [('a', 5)]))\\n self.assertTrue(inv.reserve('r1', [('a', 1)]))\\n self.assertEqual(inv.snapshot(), {'a': 0})\\n\\n def test_replay_payload_with_nonpositive_quantity_returns_false(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\\n self.assertFalse(inv.reserve('r1', [('a', 0)]))\\n self.assertEqual(inv.snapshot(), {'a': 8})\\n\\n\\nclass CancelTests(unittest.TestCase):\\n def test_cancel_restores_stock(self):\\n inv = Inventory({'a': 10, 'b': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 4)]))\\n self.assertTrue(inv.cancel('r1'))\\n self.assertEqual(inv.snapshot(), {'a': 10, 'b': 10})\\n\\n def test_cancel_exactly_once(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\\n self.assertTrue(inv.cancel('r1'))\\n self.assertFalse(inv.cancel('r1'))\\n self.assertEqual(inv.snapshot(), {'a': 10})\\n\\n def test_cancel_of_absent_id_returns_false(self):\\n inv = Inventory({'a': 10})\\n self.assertFalse(inv.cancel('nope'))\\n\\n def test_cancel_restores_aggregated_repeated_skus(self):\\n inv = Inventory({'a': 5})\\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\\n self.assertTrue(inv.cancel('r1'))\\n self.assertEqual(inv.snapshot(), {'a': 5})\\n\\n def test_cancelled_id_can_be_reused(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\\n self.assertTrue(inv.cancel('r1'))\\n self.assertTrue(inv.reserve('r1', [('a', 6)]))\\n self.assertEqual(inv.snapshot(), {'a': 4})\\n self.assertTrue(inv.cancel('r1'))\\n self.assertEqual(inv.snapshot(), {'a': 10})\\n\\n def test_cancelling_one_request_leaves_others_intact(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\\n self.assertTrue(inv.reserve('r2', [('a', 2)]))\\n self.assertTrue(inv.cancel('r1'))\\n self.assertEqual(inv.snapshot(), {'a': 9})\\n self.assertFalse(inv.reserve('r2', [('a', 2)])) # still active, replay wrong payload\\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\\n self.assertEqual(inv.snapshot(), {'a': 9})\\n\\n\\nclass SnapshotTests(unittest.TestCase):\\n def test_snapshot_detached_from_inventory(self):\\n inv = Inventory({'a': 5})\\n snap = inv.snapshot()\\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\\n self.assertEqual(snap, {'a': 5})\\n\\n def test_snapshot_detached_from_caller(self):\\n inv = Inventory({'a': 5})\\n snap = inv.snapshot()\\n snap['a'] = 999\\n snap['z'] = 1\\n self.assertEqual(inv.snapshot(), {'a': 5})\\n\\n\\nif __name__ == '__main__':\\n unittest.main()\"}",
"origin": "completion"
},
"llm_response_id": "gen-1792372138-jyPwLKktgtSs8VIBee4u",
"security_risk": "UNKNOWN",
"summary": "file_editor: {\"command\": \"str_replace\", \"path\": \"/private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py\", \"old_str\": \"import unittest\\nfrom inventory import Inventory\\nclass Smoke(unittest.TestCase):\\n def test_one(self):\\n x=Inventory({'a':3});self.assertTrue(x.reserve('r',[('a',1)]));self.assertEqual(x.snapshot(),{'a':2})\", \"new_str\": \"import unittest\\nfrom inventory import Inventory\\n\\n\\nclass OriginalSmoke(unittest.TestCase):\\n def test_one(self):\\n x = Inventory({'a': 3})\\n self.assertTrue(x.reserve('r', [('a', 1)]))\\n self.assertEqual(x.snapshot(), {'a': 2})\\n\\n\\nclass ConstructorTests(unittest.TestCase):\\n def test_copies_input_dict(self):\\n stock = {'a': 3, 'b': 2}\\n inv = Inventory(stock)\\n stock['a'] = 999\\n stock['c'] = 7\\n self.assertEqual(inv.snapshot(), {'a': 3, 'b': 2})\\n\\n def test_copies_input_skus(self):\\n skus = ['x', 'y']\\n inv = Inventory({skus[0]: 1})\\n skus.append('z')\\n self.assertEqual(inv.snapshot(), {'x': 1})\\n\\n\\nclass ReserveTests(unittest.TestCase):\\n def test_success_deducts(self):\\n inv = Inventory({'a': 10, 'b': 5})\\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 2)]))\\n self.assertEqual(inv.snapshot(), {'a': 7, 'b': 3})\\n\\n def test_insufficient_stock_returns_false(self):\\n inv = Inventory({'a': 2})\\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\\n self.assertEqual(inv.snapshot(), {'a': 2})\\n\\n def test_failure_is_atomic_across_lines(self):\\n inv = Inventory({'a': 5, 'b': 1})\\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 2), ('a', 1)]))\\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 1})\\n\\n def test_unknown_sku_returns_false_without_mutation(self):\\n inv = Inventory({'a': 5})\\n self.assertFalse(inv.reserve('r1', [('a', 1), ('ghost', 1)]))\\n self.assertEqual(inv.snapshot(), {'a': 5})\\n\\n def test_unknown_sku_single_line_returns_false(self):\\n inv = Inventory({'a': 5})\\n self.assertFalse(inv.reserve('r1', [('nope', 1)]))\\n self.assertEqual(inv.snapshot(), {'a': 5})\\n\\n def test_repeated_sku_lines_aggregate_in_place(self):\\n inv = Inventory({'a': 5})\\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\\n self.assertEqual(inv.snapshot(), {'a': 2})\\n\\n def test_nonpositive_quantity_returns_false(self):\\n for qty in (0, -3):\\n inv = Inventory({'a': 5})\\n self.assertFalse(inv.reserve('r1', [('a', qty)]))\\n self.assertEqual(inv.snapshot(), {'a': 5})\\n\\n def test_nonpositive_quantity_fails_atomically_even_after_valid_lines(self):\\n inv = Inventory({'a': 5, 'b': 5})\\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', -1)]))\\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 5})\\n\\n def test_empty_lines_succeeds(self):\\n inv = Inventory({'a': 5})\\n self.assertTrue(inv.reserve('r1', []))\\n self.assertEqual(inv.snapshot(), {'a': 5})\\n\\n def test_large_success_deducts_aggregate(self):\\n inv = Inventory({'a': 3, 'b': 4})\\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1), ('a', 1), ('b', 4)]))\\n self.assertEqual(inv.snapshot(), {'a': 0, 'b': 0})\\n\\n def test_two_independent_requests_coexist(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\\n self.assertTrue(inv.reserve('r2', [('a', 3)]))\\n self.assertEqual(inv.snapshot(), {'a': 3})\\n\\n\\nclass IdempotencyTests(unittest.TestCase):\\n def test_exact_replay_returns_true_without_deduction(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\\n self.assertEqual(inv.snapshot(), {'a': 7})\\n\\n def test_replay_order_irrelevant(self):\\n inv = Inventory({'a': 10, 'b': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 2), ('b', 3)]))\\n self.assertTrue(inv.reserve('r1', [('b', 3), ('a', 2)]))\\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 7})\\n\\n def test_replay_with_split_lines_same_aggregate(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1)]))\\n self.assertEqual(inv.snapshot(), {'a': 8})\\n\\n def test_different_quantity_for_active_id_returns_false(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\\n self.assertEqual(inv.snapshot(), {'a': 8})\\n\\n def test_different_sku_for_active_id_returns_false(self):\\n inv = Inventory({'a': 10, 'b': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\\n self.assertFalse(inv.reserve('r1', [('b', 2)]))\\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\\n\\n def test_different_skus_list_for_active_id_returns_false(self):\\n inv = Inventory({'a': 10, 'b': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 1)]))\\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\\n\\n def test_failed_request_is_not_remembered(self):\\n inv = Inventory({'a': 1})\\n self.assertFalse(inv.reserve('r1', [('a', 5)]))\\n self.assertTrue(inv.reserve('r1', [('a', 1)]))\\n self.assertEqual(inv.snapshot(), {'a': 0})\\n\\n def test_replay_payload_with_nonpositive_quantity_returns_false(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\\n self.assertFalse(inv.reserve('r1', [('a', 0)]))\\n self.assertEqual(inv.snapshot(), {'a': 8})\\n\\n\\nclass CancelTests(unittest.TestCase):\\n def test_cancel_restores_stock(self):\\n inv = Inventory({'a': 10, 'b': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 4)]))\\n self.assertTrue(inv.cancel('r1'))\\n self.assertEqual(inv.snapshot(), {'a': 10, 'b': 10})\\n\\n def test_cancel_exactly_once(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\\n self.assertTrue(inv.cancel('r1'))\\n self.assertFalse(inv.cancel('r1'))\\n self.assertEqual(inv.snapshot(), {'a': 10})\\n\\n def test_cancel_of_absent_id_returns_false(self):\\n inv = Inventory({'a': 10})\\n self.assertFalse(inv.cancel('nope'))\\n\\n def test_cancel_restores_aggregated_repeated_skus(self):\\n inv = Inventory({'a': 5})\\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\\n self.assertTrue(inv.cancel('r1'))\\n self.assertEqual(inv.snapshot(), {'a': 5})\\n\\n def test_cancelled_id_can_be_reused(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\\n self.assertTrue(inv.cancel('r1'))\\n self.assertTrue(inv.reserve('r1', [('a', 6)]))\\n self.assertEqual(inv.snapshot(), {'a': 4})\\n self.assertTrue(inv.cancel('r1'))\\n self.assertEqual(inv.snapshot(), {'a': 10})\\n\\n def test_cancelling_one_request_leaves_others_intact(self):\\n inv = Inventory({'a': 10})\\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\\n self.assertTrue(inv.reserve('r2', [('a', 2)]))\\n self.assertTrue(inv.cancel('r1'))\\n self.assertEqual(inv.snapshot(), {'a': 9})\\n self.assertFalse(inv.reserve('r2', [('a', 2)])) # still active, replay wrong payload\\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\\n self.assertEqual(inv.snapshot(), {'a': 9})\\n\\n\\nclass SnapshotTests(unittest.TestCase):\\n def test_snapshot_detached_from_inventory(self):\\n inv = Inventory({'a': 5})\\n snap = inv.snapshot()\\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\\n self.assertEqual(snap, {'a': 5})\\n\\n def test_snapshot_detached_from_caller(self):\\n inv = Inventory({'a': 5})\\n snap = inv.snapshot()\\n snap['a'] = 999\\n snap['z'] = 1\\n self.assertEqual(inv.snapshot(), {'a': 5})\\n\\n\\nif __name__ == '__main__':\\n unittest.main()\"}",
"kind": "ActionEvent"
}Tool result: file_editor
The file /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py has been edited. Here's the result of running `cat -n` on a snippet of /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py:
1 import unittest
2 from inventory import Inventory
3
4
5 class OriginalSmoke(unittest.TestCase):
6 def test_one(self):
7 x = Inventory({'a': 3})
8 self.assertTrue(x.reserve('r', [('a', 1)]))
9 self.assertEqual(x.snapshot(), {'a': 2})
10
11
12 class ConstructorTests(unittest.TestCase):
13 def test_copies_input_dict(self):
14 stock = {'a': 3, 'b': 2}
15 inv = Inventory(stock)
16 stock['a'] = 999
17 stock['c'] = 7
18 self.assertEqual(inv.snapshot(), {'a': 3, 'b': 2})
19
20 def test_copies_input_skus(self):
21 skus = ['x', 'y']
22 inv = Inventory({skus[0]: 1})
23 skus.append('z')
24 self.assertEqual(inv.snapshot(), {'x': 1})
25
26
27 class ReserveTests(unittest.TestCase):
28 def test_success_deducts(self):
29 inv = Inventory({'a': 10, 'b': 5})
30 self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 2)]))
31 self.assertEqual(inv.snapshot(), {'a': 7, 'b': 3})
32
33 def test_insufficient_stock_returns_false(self):
34 inv = Inventory({'a': 2})
35 self.assertFalse(inv.reserve('r1', [('a', 3)]))
36 self.assertEqual(inv.snapshot(), {'a': 2})
37
38 def test_failure_is_atomic_across_lines(self):
39 inv = Inventory({'a': 5, 'b': 1})
40 self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 2), ('a', 1)]))
41 self.assertEqual(inv.snapshot(), {'a': 5, 'b': 1})
42
43 def test_unknown_sku_returns_false_without_mutation(self):
44 inv = Inventory({'a': 5})
45 self.assertFalse(inv.reserve('r1', [('a', 1), ('ghost', 1)]))
46 self.assertEqual(inv.snapshot(), {'a': 5})
47
48 def test_unknown_sku_single_line_returns_false(self):
49 inv = Inventory({'a': 5})
50 self.assertFalse(inv.reserve('r1', [('nope', 1)]))
51 self.assertEqual(inv.snapshot(), {'a': 5})
52
53 def test_repeated_sku_lines_aggregate_in_place(self):
54 inv = Inventory({'a': 5})
55 self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))
56 self.assertEqual(inv.snapshot(), {'a': 2})
57
58 def test_nonpositive_quantity_returns_false(self):
59 for qty in (0, -3):
60 inv = Inventory({'a': 5})
61 self.assertFalse(inv.reserve('r1', [('a', qty)]))
62 self.assertEqual(inv.snapshot(), {'a': 5})
63
64 def test_nonpositive_quantity_fails_atomically_even_after_valid_lines(self):
65 inv = Inventory({'a': 5, 'b': 5})
66 self.assertFalse(inv.reserve('r1', [('a', 2), ('b', -1)]))
67 self.assertEqual(inv.snapshot(), {'a': 5, 'b': 5})
68
69 def test_empty_lines_succeeds(self):
70 inv = Inventory({'a': 5})
71 self.assertTrue(inv.reserve('r1', []))
72 self.assertEqual(inv.snapshot(), {'a': 5})
73
74 def test_large_success_deducts_aggregate(self):
75 inv = Inventory({'a': 3, 'b': 4})
76 self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1), ('a', 1), ('b', 4)]))
77 self.assertEqual(inv.snapshot(), {'a': 0, 'b': 0})
78
79 def test_two_independent_requests_coexist(self):
80 inv = Inventory({'a': 10})
81 self.assertTrue(inv.reserve('r1', [('a', 4)]))
82 self.assertTrue(inv.reserve('r2', [('a', 3)]))
83 self.assertEqual(inv.snapshot(), {'a': 3})
84
85
86 class IdempotencyTests(unittest.TestCase):
87 def test_exact_replay_returns_true_without_deduction(self):
88 inv = Inventory({'a': 10})
89 self.assertTrue(inv.reserve('r1', [('a', 3)]))
90 self.assertTrue(inv.reserve('r1', [('a', 3)]))
91 self.assertEqual(inv.snapshot(), {'a': 7})
92
93 def test_replay_order_irrelevant(self):
94 inv = Inventory({'a': 10, 'b': 10})
95 self.assertTrue(inv.reserve('r1', [('a', 2), ('b', 3)]))
96 self.assertTrue(inv.reserve('r1', [('b', 3), ('a', 2)]))
97 self.assertEqual(inv.snapshot(), {'a': 8, 'b': 7})
98
99 def test_replay_with_split_lines_same_aggregate(self):
100 inv = Inventory({'a': 10})
101 self.assertTrue(inv.reserve('r1', [('a', 2)]))
102 self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1)]))
103 self.assertEqual(inv.snapshot(), {'a': 8})
104
105 def test_different_quantity_for_active_id_returns_false(self):
106 inv = Inventory({'a': 10})
107 self.assertTrue(inv.reserve('r1', [('a', 2)]))
108 self.assertFalse(inv.reserve('r1', [('a', 3)]))
109 self.assertEqual(inv.snapshot(), {'a': 8})
110
111 def test_different_sku_for_active_id_returns_false(self):
112 inv = Inventory({'a': 10, 'b': 10})
113 self.assertTrue(inv.reserve('r1', [('a', 2)]))
114 self.assertFalse(inv.reserve('r1', [('b', 2)]))
115 self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})
116
117 def test_different_skus_list_for_active_id_returns_false(self):
118 inv = Inventory({'a': 10, 'b': 10})
119 self.assertTrue(inv.reserve('r1', [('a', 2)]))
120 self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 1)]))
121 self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})
122
123 def test_failed_request_is_not_remembered(self):
124 inv = Inventory({'a': 1})
125 self.assertFalse(inv.reserve('r1', [('a', 5)]))
126 self.assertTrue(inv.reserve('r1', [('a', 1)]))
127 self.assertEqual(inv.snapshot(), {'a': 0})
128
129 def test_replay_payload_with_nonpositive_quantity_returns_false(self):
130 inv = Inventory({'a': 10})
131 self.assertTrue(inv.reserve('r1', [('a', 2)]))
132 self.assertFalse(inv.reserve('r1', [('a', 0)]))
133 self.assertEqual(inv.snapshot(), {'a': 8})
134
135
136 class CancelTests(unittest.TestCase):
137 def test_cancel_restores_stock(self):
138 inv = Inventory({'a': 10, 'b': 10})
139 self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 4)]))
140 self.assertTrue(inv.cancel('r1'))
141 self.assertEqual(inv.snapshot(), {'a': 10, 'b': 10})
142
143 def test_cancel_exactly_once(self):
144 inv = Inventory({'a': 10})
145 self.assertTrue(inv.reserve('r1', [('a', 3)]))
146 self.assertTrue(inv.cancel('r1'))
147 self.assertFalse(inv.cancel('r1'))
148 self.assertEqual(inv.snapshot(), {'a': 10})
149
150 def test_cancel_of_absent_id_returns_false(self):
151 inv = Inventory({'a': 10})
152 self.assertFalse(inv.cancel('nope'))
153
154 def test_cancel_restores_aggregated_repeated_skus(self):
155 inv = Inventory({'a': 5})
156 self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))
157 self.assertTrue(inv.cancel('r1'))
158 self.assertEqual(inv.snapshot(), {'a': 5})
159
160 def test_cancelled_id_can_be_reused(self):
161 inv = Inventory({'a': 10})
162 self.assertTrue(inv.reserve('r1', [('a', 4)]))
163 self.assertTrue(inv.cancel('r1'))
164 self.assertTrue(inv.reserve('r1', [('a', 6)]))
165 self.assertEqual(inv.snapshot(), {'a': 4})
166 self.assertTrue(inv.cancel('r1'))
167 self.assertEqual(inv.snapshot(), {'a': 10})
168
169 def test_cancelling_one_request_leaves_others_intact(self):
170 inv = Inventory({'a': 10})
171 self.assertTrue(inv.reserve('r1', [('a', 3)]))
172 self.assertTrue(inv.reserve('r2', [('a', 2)]))
173 self.assertTrue(inv.cancel('r1'))
174 self.assertEqual(inv.snapshot(), {'a': 9})
175 self.assertFalse(inv.reserve('r2', [('a', 2)])) # still active, replay wrong payload
176 self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent
177 self.assertEqual(inv.snapshot(), {'a': 9})
178
179
180 class SnapshotTests(unittest.TestCase):
181 def test_snapshot_detached_from_inventory(self):
182 inv = Inventory({'a': 5})
183 snap = inv.snapshot()
184 self.assertTrue(inv.reserve('r1', [('a', 2)]))
185 self.assertEqual(snap, {'a': 5})
186
187 def test_snapshot_detached_from_caller(self):
188 inv = Inventory({'a': 5})
189 snap = inv.snapshot()
190 snap['a'] = 999
191 snap['z'] = 1
192 self.assertEqual(inv.snapshot(), {'a': 5})
193
194
195 if __name__ == '__main__':
196 unittest.main()
197
Review the changes and make sure they are as expected. Edit the file again if necessary.Full event evidence
{
"id": "ec30f8ac-622f-4d3f-bf02-651944062991",
"timestamp": "2026-10-18T20:09:18.013912",
"source": "environment",
"parent_id": "0b32f87a-ac8a-46b2-b224-a189bcc2779d",
"tool_name": "file_editor",
"tool_call_id": "call_1ea9f21cca204785bc4cb0ed",
"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "The file /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py has been edited. Here's the result of running `cat -n` on a snippet of /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py:\n 1\timport unittest\n 2\tfrom inventory import Inventory\n 3\t\n 4\t\n 5\tclass OriginalSmoke(unittest.TestCase):\n 6\t def test_one(self):\n 7\t x = Inventory({'a': 3})\n 8\t self.assertTrue(x.reserve('r', [('a', 1)]))\n 9\t self.assertEqual(x.snapshot(), {'a': 2})\n 10\t\n 11\t\n 12\tclass ConstructorTests(unittest.TestCase):\n 13\t def test_copies_input_dict(self):\n 14\t stock = {'a': 3, 'b': 2}\n 15\t inv = Inventory(stock)\n 16\t stock['a'] = 999\n 17\t stock['c'] = 7\n 18\t self.assertEqual(inv.snapshot(), {'a': 3, 'b': 2})\n 19\t\n 20\t def test_copies_input_skus(self):\n 21\t skus = ['x', 'y']\n 22\t inv = Inventory({skus[0]: 1})\n 23\t skus.append('z')\n 24\t self.assertEqual(inv.snapshot(), {'x': 1})\n 25\t\n 26\t\n 27\tclass ReserveTests(unittest.TestCase):\n 28\t def test_success_deducts(self):\n 29\t inv = Inventory({'a': 10, 'b': 5})\n 30\t self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 2)]))\n 31\t self.assertEqual(inv.snapshot(), {'a': 7, 'b': 3})\n 32\t\n 33\t def test_insufficient_stock_returns_false(self):\n 34\t inv = Inventory({'a': 2})\n 35\t self.assertFalse(inv.reserve('r1', [('a', 3)]))\n 36\t self.assertEqual(inv.snapshot(), {'a': 2})\n 37\t\n 38\t def test_failure_is_atomic_across_lines(self):\n 39\t inv = Inventory({'a': 5, 'b': 1})\n 40\t self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 2), ('a', 1)]))\n 41\t self.assertEqual(inv.snapshot(), {'a': 5, 'b': 1})\n 42\t\n 43\t def test_unknown_sku_returns_false_without_mutation(self):\n 44\t inv = Inventory({'a': 5})\n 45\t self.assertFalse(inv.reserve('r1', [('a', 1), ('ghost', 1)]))\n 46\t self.assertEqual(inv.snapshot(), {'a': 5})\n 47\t\n 48\t def test_unknown_sku_single_line_returns_false(self):\n 49\t inv = Inventory({'a': 5})\n 50\t self.assertFalse(inv.reserve('r1', [('nope', 1)]))\n 51\t self.assertEqual(inv.snapshot(), {'a': 5})\n 52\t\n 53\t def test_repeated_sku_lines_aggregate_in_place(self):\n 54\t inv = Inventory({'a': 5})\n 55\t self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n 56\t self.assertEqual(inv.snapshot(), {'a': 2})\n 57\t\n 58\t def test_nonpositive_quantity_returns_false(self):\n 59\t for qty in (0, -3):\n 60\t inv = Inventory({'a': 5})\n 61\t self.assertFalse(inv.reserve('r1', [('a', qty)]))\n 62\t self.assertEqual(inv.snapshot(), {'a': 5})\n 63\t\n 64\t def test_nonpositive_quantity_fails_atomically_even_after_valid_lines(self):\n 65\t inv = Inventory({'a': 5, 'b': 5})\n 66\t self.assertFalse(inv.reserve('r1', [('a', 2), ('b', -1)]))\n 67\t self.assertEqual(inv.snapshot(), {'a': 5, 'b': 5})\n 68\t\n 69\t def test_empty_lines_succeeds(self):\n 70\t inv = Inventory({'a': 5})\n 71\t self.assertTrue(inv.reserve('r1', []))\n 72\t self.assertEqual(inv.snapshot(), {'a': 5})\n 73\t\n 74\t def test_large_success_deducts_aggregate(self):\n 75\t inv = Inventory({'a': 3, 'b': 4})\n 76\t self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1), ('a', 1), ('b', 4)]))\n 77\t self.assertEqual(inv.snapshot(), {'a': 0, 'b': 0})\n 78\t\n 79\t def test_two_independent_requests_coexist(self):\n 80\t inv = Inventory({'a': 10})\n 81\t self.assertTrue(inv.reserve('r1', [('a', 4)]))\n 82\t self.assertTrue(inv.reserve('r2', [('a', 3)]))\n 83\t self.assertEqual(inv.snapshot(), {'a': 3})\n 84\t\n 85\t\n 86\tclass IdempotencyTests(unittest.TestCase):\n 87\t def test_exact_replay_returns_true_without_deduction(self):\n 88\t inv = Inventory({'a': 10})\n 89\t self.assertTrue(inv.reserve('r1', [('a', 3)]))\n 90\t self.assertTrue(inv.reserve('r1', [('a', 3)]))\n 91\t self.assertEqual(inv.snapshot(), {'a': 7})\n 92\t\n 93\t def test_replay_order_irrelevant(self):\n 94\t inv = Inventory({'a': 10, 'b': 10})\n 95\t self.assertTrue(inv.reserve('r1', [('a', 2), ('b', 3)]))\n 96\t self.assertTrue(inv.reserve('r1', [('b', 3), ('a', 2)]))\n 97\t self.assertEqual(inv.snapshot(), {'a': 8, 'b': 7})\n 98\t\n 99\t def test_replay_with_split_lines_same_aggregate(self):\n 100\t inv = Inventory({'a': 10})\n 101\t self.assertTrue(inv.reserve('r1', [('a', 2)]))\n 102\t self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1)]))\n 103\t self.assertEqual(inv.snapshot(), {'a': 8})\n 104\t\n 105\t def test_different_quantity_for_active_id_returns_false(self):\n 106\t inv = Inventory({'a': 10})\n 107\t self.assertTrue(inv.reserve('r1', [('a', 2)]))\n 108\t self.assertFalse(inv.reserve('r1', [('a', 3)]))\n 109\t self.assertEqual(inv.snapshot(), {'a': 8})\n 110\t\n 111\t def test_different_sku_for_active_id_returns_false(self):\n 112\t inv = Inventory({'a': 10, 'b': 10})\n 113\t self.assertTrue(inv.reserve('r1', [('a', 2)]))\n 114\t self.assertFalse(inv.reserve('r1', [('b', 2)]))\n 115\t self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n 116\t\n 117\t def test_different_skus_list_for_active_id_returns_false(self):\n 118\t inv = Inventory({'a': 10, 'b': 10})\n 119\t self.assertTrue(inv.reserve('r1', [('a', 2)]))\n 120\t self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 1)]))\n 121\t self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n 122\t\n 123\t def test_failed_request_is_not_remembered(self):\n 124\t inv = Inventory({'a': 1})\n 125\t self.assertFalse(inv.reserve('r1', [('a', 5)]))\n 126\t self.assertTrue(inv.reserve('r1', [('a', 1)]))\n 127\t self.assertEqual(inv.snapshot(), {'a': 0})\n 128\t\n 129\t def test_replay_payload_with_nonpositive_quantity_returns_false(self):\n 130\t inv = Inventory({'a': 10})\n 131\t self.assertTrue(inv.reserve('r1', [('a', 2)]))\n 132\t self.assertFalse(inv.reserve('r1', [('a', 0)]))\n 133\t self.assertEqual(inv.snapshot(), {'a': 8})\n 134\t\n 135\t\n 136\tclass CancelTests(unittest.TestCase):\n 137\t def test_cancel_restores_stock(self):\n 138\t inv = Inventory({'a': 10, 'b': 10})\n 139\t self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 4)]))\n 140\t self.assertTrue(inv.cancel('r1'))\n 141\t self.assertEqual(inv.snapshot(), {'a': 10, 'b': 10})\n 142\t\n 143\t def test_cancel_exactly_once(self):\n 144\t inv = Inventory({'a': 10})\n 145\t self.assertTrue(inv.reserve('r1', [('a', 3)]))\n 146\t self.assertTrue(inv.cancel('r1'))\n 147\t self.assertFalse(inv.cancel('r1'))\n 148\t self.assertEqual(inv.snapshot(), {'a': 10})\n 149\t\n 150\t def test_cancel_of_absent_id_returns_false(self):\n 151\t inv = Inventory({'a': 10})\n 152\t self.assertFalse(inv.cancel('nope'))\n 153\t\n 154\t def test_cancel_restores_aggregated_repeated_skus(self):\n 155\t inv = Inventory({'a': 5})\n 156\t self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n 157\t self.assertTrue(inv.cancel('r1'))\n 158\t self.assertEqual(inv.snapshot(), {'a': 5})\n 159\t\n 160\t def test_cancelled_id_can_be_reused(self):\n 161\t inv = Inventory({'a': 10})\n 162\t self.assertTrue(inv.reserve('r1', [('a', 4)]))\n 163\t self.assertTrue(inv.cancel('r1'))\n 164\t self.assertTrue(inv.reserve('r1', [('a', 6)]))\n 165\t self.assertEqual(inv.snapshot(), {'a': 4})\n 166\t self.assertTrue(inv.cancel('r1'))\n 167\t self.assertEqual(inv.snapshot(), {'a': 10})\n 168\t\n 169\t def test_cancelling_one_request_leaves_others_intact(self):\n 170\t inv = Inventory({'a': 10})\n 171\t self.assertTrue(inv.reserve('r1', [('a', 3)]))\n 172\t self.assertTrue(inv.reserve('r2', [('a', 2)]))\n 173\t self.assertTrue(inv.cancel('r1'))\n 174\t self.assertEqual(inv.snapshot(), {'a': 9})\n 175\t self.assertFalse(inv.reserve('r2', [('a', 2)])) # still active, replay wrong payload\n 176\t self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n 177\t self.assertEqual(inv.snapshot(), {'a': 9})\n 178\t\n 179\t\n 180\tclass SnapshotTests(unittest.TestCase):\n 181\t def test_snapshot_detached_from_inventory(self):\n 182\t inv = Inventory({'a': 5})\n 183\t snap = inv.snapshot()\n 184\t self.assertTrue(inv.reserve('r1', [('a', 2)]))\n 185\t self.assertEqual(snap, {'a': 5})\n 186\t\n 187\t def test_snapshot_detached_from_caller(self):\n 188\t inv = Inventory({'a': 5})\n 189\t snap = inv.snapshot()\n 190\t snap['a'] = 999\n 191\t snap['z'] = 1\n 192\t self.assertEqual(inv.snapshot(), {'a': 5})\n 193\t\n 194\t\n 195\tif __name__ == '__main__':\n 196\t unittest.main()\n 197\t\nReview the changes and make sure they are as expected. Edit the file again if necessary."
}
],
"is_error": false,
"command": "str_replace",
"path": "/private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py",
"prev_exist": true,
"old_content": "import unittest\nfrom inventory import Inventory\nclass Smoke(unittest.TestCase):\n def test_one(self):\n x=Inventory({'a':3});self.assertTrue(x.reserve('r',[('a',1)]));self.assertEqual(x.snapshot(),{'a':2})\n",
"new_content": "import unittest\nfrom inventory import Inventory\n\n\nclass OriginalSmoke(unittest.TestCase):\n def test_one(self):\n x = Inventory({'a': 3})\n self.assertTrue(x.reserve('r', [('a', 1)]))\n self.assertEqual(x.snapshot(), {'a': 2})\n\n\nclass ConstructorTests(unittest.TestCase):\n def test_copies_input_dict(self):\n stock = {'a': 3, 'b': 2}\n inv = Inventory(stock)\n stock['a'] = 999\n stock['c'] = 7\n self.assertEqual(inv.snapshot(), {'a': 3, 'b': 2})\n\n def test_copies_input_skus(self):\n skus = ['x', 'y']\n inv = Inventory({skus[0]: 1})\n skus.append('z')\n self.assertEqual(inv.snapshot(), {'x': 1})\n\n\nclass ReserveTests(unittest.TestCase):\n def test_success_deducts(self):\n inv = Inventory({'a': 10, 'b': 5})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 7, 'b': 3})\n\n def test_insufficient_stock_returns_false(self):\n inv = Inventory({'a': 2})\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_failure_is_atomic_across_lines(self):\n inv = Inventory({'a': 5, 'b': 1})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 2), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 1})\n\n def test_unknown_sku_returns_false_without_mutation(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', 1), ('ghost', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_unknown_sku_single_line_returns_false(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('nope', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_repeated_sku_lines_aggregate_in_place(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_nonpositive_quantity_returns_false(self):\n for qty in (0, -3):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', qty)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_nonpositive_quantity_fails_atomically_even_after_valid_lines(self):\n inv = Inventory({'a': 5, 'b': 5})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', -1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 5})\n\n def test_empty_lines_succeeds(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', []))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_large_success_deducts_aggregate(self):\n inv = Inventory({'a': 3, 'b': 4})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1), ('a', 1), ('b', 4)]))\n self.assertEqual(inv.snapshot(), {'a': 0, 'b': 0})\n\n def test_two_independent_requests_coexist(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.reserve('r2', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 3})\n\n\nclass IdempotencyTests(unittest.TestCase):\n def test_exact_replay_returns_true_without_deduction(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 7})\n\n def test_replay_order_irrelevant(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2), ('b', 3)]))\n self.assertTrue(inv.reserve('r1', [('b', 3), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 7})\n\n def test_replay_with_split_lines_same_aggregate(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_quantity_for_active_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_sku_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_different_skus_list_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_failed_request_is_not_remembered(self):\n inv = Inventory({'a': 1})\n self.assertFalse(inv.reserve('r1', [('a', 5)]))\n self.assertTrue(inv.reserve('r1', [('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 0})\n\n def test_replay_payload_with_nonpositive_quantity_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 0)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n\nclass CancelTests(unittest.TestCase):\n def test_cancel_restores_stock(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10, 'b': 10})\n\n def test_cancel_exactly_once(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertFalse(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancel_of_absent_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertFalse(inv.cancel('nope'))\n\n def test_cancel_restores_aggregated_repeated_skus(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_cancelled_id_can_be_reused(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertTrue(inv.reserve('r1', [('a', 6)]))\n self.assertEqual(inv.snapshot(), {'a': 4})\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancelling_one_request_leaves_others_intact(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r2', [('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 9})\n self.assertFalse(inv.reserve('r2', [('a', 2)])) # still active, replay wrong payload\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n self.assertEqual(inv.snapshot(), {'a': 9})\n\n\nclass SnapshotTests(unittest.TestCase):\n def test_snapshot_detached_from_inventory(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertEqual(snap, {'a': 5})\n\n def test_snapshot_detached_from_caller(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n snap['a'] = 999\n snap['z'] = 1\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n\nif __name__ == '__main__':\n unittest.main()\n",
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}ConversationStateUpdateEvent
{
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}Tool request: file_editor
{
"command": "str_replace",
"path": "/private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py",
"old_str": "self.assertFalse(inv.reserve('r2', [('a', 2)])) # still active, replay wrong payload\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n self.assertEqual(inv.snapshot(), {'a': 9})",
"new_str": "self.assertFalse(inv.reserve('r2', [('a', 5)])) # still active, wrong payload fails\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n self.assertEqual(inv.snapshot(), {'a': 9})",
"kind": "FileEditorAction"
}Full event evidence
{
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"timestamp": "2026-10-18T20:09:21.352260",
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"path": "/private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py",
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"new_str": "self.assertFalse(inv.reserve('r2', [('a', 5)])) # still active, wrong payload fails\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n self.assertEqual(inv.snapshot(), {'a': 9})",
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"name": "file_editor",
"arguments": "{\"command\": \"str_replace\", \"path\": \"/private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py\", \"old_str\": \"self.assertFalse(inv.reserve('r2', [('a', 2)])) # still active, replay wrong payload\\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\\n self.assertEqual(inv.snapshot(), {'a': 9})\", \"new_str\": \"self.assertFalse(inv.reserve('r2', [('a', 5)])) # still active, wrong payload fails\\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\\n self.assertEqual(inv.snapshot(), {'a': 9})\"}",
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"summary": "file_editor: {\"command\": \"str_replace\", \"path\": \"/private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py\", \"old_str\": \"self.assertFalse(inv.reserve('r2', [('a', 2)])) # still active, replay wrong payload\\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\\n self.assertEqual(inv.snapshot(), {'a': 9})\", \"new_str\": \"self.assertFalse(inv.reserve('r2', [('a', 5)])) # still active, wrong payload fails\\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\\n self.assertEqual(inv.snapshot(), {'a': 9})\"}",
"kind": "ActionEvent"
}Tool result: file_editor
The file /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py has been edited. Here's the result of running `cat -n` on a snippet of /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py:
172 self.assertTrue(inv.reserve('r2', [('a', 2)]))
173 self.assertTrue(inv.cancel('r1'))
174 self.assertEqual(inv.snapshot(), {'a': 9})
175 self.assertFalse(inv.reserve('r2', [('a', 5)])) # still active, wrong payload fails
176 self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent
177 self.assertEqual(inv.snapshot(), {'a': 9})
178
179
180 class SnapshotTests(unittest.TestCase):
181 def test_snapshot_detached_from_inventory(self):
182
Review the changes and make sure they are as expected. Edit the file again if necessary.Full event evidence
{
"id": "ca0e4ae1-bb38-4111-a107-bdf2d3468e3d",
"timestamp": "2026-10-18T20:09:21.366245",
"source": "environment",
"parent_id": "276ef1ee-bb3b-4e97-941f-ebb233cdf1e4",
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"observation": {
"content": [
{
"cache_prompt": false,
"type": "text",
"text": "The file /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py has been edited. Here's the result of running `cat -n` on a snippet of /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py:\n 172\t self.assertTrue(inv.reserve('r2', [('a', 2)]))\n 173\t self.assertTrue(inv.cancel('r1'))\n 174\t self.assertEqual(inv.snapshot(), {'a': 9})\n 175\t self.assertFalse(inv.reserve('r2', [('a', 5)])) # still active, wrong payload fails\n 176\t self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n 177\t self.assertEqual(inv.snapshot(), {'a': 9})\n 178\t\n 179\t\n 180\tclass SnapshotTests(unittest.TestCase):\n 181\t def test_snapshot_detached_from_inventory(self):\n 182\t\nReview the changes and make sure they are as expected. Edit the file again if necessary."
}
],
"is_error": false,
"command": "str_replace",
"path": "/private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py",
"prev_exist": true,
"old_content": "import unittest\nfrom inventory import Inventory\n\n\nclass OriginalSmoke(unittest.TestCase):\n def test_one(self):\n x = Inventory({'a': 3})\n self.assertTrue(x.reserve('r', [('a', 1)]))\n self.assertEqual(x.snapshot(), {'a': 2})\n\n\nclass ConstructorTests(unittest.TestCase):\n def test_copies_input_dict(self):\n stock = {'a': 3, 'b': 2}\n inv = Inventory(stock)\n stock['a'] = 999\n stock['c'] = 7\n self.assertEqual(inv.snapshot(), {'a': 3, 'b': 2})\n\n def test_copies_input_skus(self):\n skus = ['x', 'y']\n inv = Inventory({skus[0]: 1})\n skus.append('z')\n self.assertEqual(inv.snapshot(), {'x': 1})\n\n\nclass ReserveTests(unittest.TestCase):\n def test_success_deducts(self):\n inv = Inventory({'a': 10, 'b': 5})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 7, 'b': 3})\n\n def test_insufficient_stock_returns_false(self):\n inv = Inventory({'a': 2})\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_failure_is_atomic_across_lines(self):\n inv = Inventory({'a': 5, 'b': 1})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 2), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 1})\n\n def test_unknown_sku_returns_false_without_mutation(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', 1), ('ghost', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_unknown_sku_single_line_returns_false(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('nope', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_repeated_sku_lines_aggregate_in_place(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_nonpositive_quantity_returns_false(self):\n for qty in (0, -3):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', qty)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_nonpositive_quantity_fails_atomically_even_after_valid_lines(self):\n inv = Inventory({'a': 5, 'b': 5})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', -1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 5})\n\n def test_empty_lines_succeeds(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', []))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_large_success_deducts_aggregate(self):\n inv = Inventory({'a': 3, 'b': 4})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1), ('a', 1), ('b', 4)]))\n self.assertEqual(inv.snapshot(), {'a': 0, 'b': 0})\n\n def test_two_independent_requests_coexist(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.reserve('r2', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 3})\n\n\nclass IdempotencyTests(unittest.TestCase):\n def test_exact_replay_returns_true_without_deduction(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 7})\n\n def test_replay_order_irrelevant(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2), ('b', 3)]))\n self.assertTrue(inv.reserve('r1', [('b', 3), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 7})\n\n def test_replay_with_split_lines_same_aggregate(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_quantity_for_active_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_sku_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_different_skus_list_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_failed_request_is_not_remembered(self):\n inv = Inventory({'a': 1})\n self.assertFalse(inv.reserve('r1', [('a', 5)]))\n self.assertTrue(inv.reserve('r1', [('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 0})\n\n def test_replay_payload_with_nonpositive_quantity_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 0)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n\nclass CancelTests(unittest.TestCase):\n def test_cancel_restores_stock(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10, 'b': 10})\n\n def test_cancel_exactly_once(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertFalse(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancel_of_absent_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertFalse(inv.cancel('nope'))\n\n def test_cancel_restores_aggregated_repeated_skus(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_cancelled_id_can_be_reused(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertTrue(inv.reserve('r1', [('a', 6)]))\n self.assertEqual(inv.snapshot(), {'a': 4})\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancelling_one_request_leaves_others_intact(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r2', [('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 9})\n self.assertFalse(inv.reserve('r2', [('a', 2)])) # still active, replay wrong payload\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n self.assertEqual(inv.snapshot(), {'a': 9})\n\n\nclass SnapshotTests(unittest.TestCase):\n def test_snapshot_detached_from_inventory(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertEqual(snap, {'a': 5})\n\n def test_snapshot_detached_from_caller(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n snap['a'] = 999\n snap['z'] = 1\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n\nif __name__ == '__main__':\n unittest.main()\n",
"new_content": "import unittest\nfrom inventory import Inventory\n\n\nclass OriginalSmoke(unittest.TestCase):\n def test_one(self):\n x = Inventory({'a': 3})\n self.assertTrue(x.reserve('r', [('a', 1)]))\n self.assertEqual(x.snapshot(), {'a': 2})\n\n\nclass ConstructorTests(unittest.TestCase):\n def test_copies_input_dict(self):\n stock = {'a': 3, 'b': 2}\n inv = Inventory(stock)\n stock['a'] = 999\n stock['c'] = 7\n self.assertEqual(inv.snapshot(), {'a': 3, 'b': 2})\n\n def test_copies_input_skus(self):\n skus = ['x', 'y']\n inv = Inventory({skus[0]: 1})\n skus.append('z')\n self.assertEqual(inv.snapshot(), {'x': 1})\n\n\nclass ReserveTests(unittest.TestCase):\n def test_success_deducts(self):\n inv = Inventory({'a': 10, 'b': 5})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 7, 'b': 3})\n\n def test_insufficient_stock_returns_false(self):\n inv = Inventory({'a': 2})\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_failure_is_atomic_across_lines(self):\n inv = Inventory({'a': 5, 'b': 1})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 2), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 1})\n\n def test_unknown_sku_returns_false_without_mutation(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', 1), ('ghost', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_unknown_sku_single_line_returns_false(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('nope', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_repeated_sku_lines_aggregate_in_place(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_nonpositive_quantity_returns_false(self):\n for qty in (0, -3):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', qty)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_nonpositive_quantity_fails_atomically_even_after_valid_lines(self):\n inv = Inventory({'a': 5, 'b': 5})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', -1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 5})\n\n def test_empty_lines_succeeds(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', []))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_large_success_deducts_aggregate(self):\n inv = Inventory({'a': 3, 'b': 4})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1), ('a', 1), ('b', 4)]))\n self.assertEqual(inv.snapshot(), {'a': 0, 'b': 0})\n\n def test_two_independent_requests_coexist(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.reserve('r2', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 3})\n\n\nclass IdempotencyTests(unittest.TestCase):\n def test_exact_replay_returns_true_without_deduction(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 7})\n\n def test_replay_order_irrelevant(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2), ('b', 3)]))\n self.assertTrue(inv.reserve('r1', [('b', 3), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 7})\n\n def test_replay_with_split_lines_same_aggregate(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_quantity_for_active_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_sku_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_different_skus_list_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_failed_request_is_not_remembered(self):\n inv = Inventory({'a': 1})\n self.assertFalse(inv.reserve('r1', [('a', 5)]))\n self.assertTrue(inv.reserve('r1', [('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 0})\n\n def test_replay_payload_with_nonpositive_quantity_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 0)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n\nclass CancelTests(unittest.TestCase):\n def test_cancel_restores_stock(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10, 'b': 10})\n\n def test_cancel_exactly_once(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertFalse(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancel_of_absent_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertFalse(inv.cancel('nope'))\n\n def test_cancel_restores_aggregated_repeated_skus(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_cancelled_id_can_be_reused(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertTrue(inv.reserve('r1', [('a', 6)]))\n self.assertEqual(inv.snapshot(), {'a': 4})\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancelling_one_request_leaves_others_intact(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r2', [('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 9})\n self.assertFalse(inv.reserve('r2', [('a', 5)])) # still active, wrong payload fails\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n self.assertEqual(inv.snapshot(), {'a': 9})\n\n\nclass SnapshotTests(unittest.TestCase):\n def test_snapshot_detached_from_inventory(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertEqual(snap, {'a': 5})\n\n def test_snapshot_detached_from_caller(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n snap['a'] = 999\n snap['z'] = 1\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n\nif __name__ == '__main__':\n unittest.main()\n",
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}Tool request: terminal
{
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"timestamp": "2026-10-18T20:09:22.861848",
"source": "agent",
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test_different_sku_for_active_id_returns_false (test_inventory.IdempotencyTests.test_different_sku_for_active_id_returns_false) ... ok
test_different_skus_list_for_active_id_returns_false (test_inventory.IdempotencyTests.test_different_skus_list_for_active_id_returns_false) ... ok
test_exact_replay_returns_true_without_deduction (test_inventory.IdempotencyTests.test_exact_replay_returns_true_without_deduction) ... ok
test_failed_request_is_not_remembered (test_inventory.IdempotencyTests.test_failed_request_is_not_remembered) ... ok
test_replay_order_irrelevant (test_inventory.IdempotencyTests.test_replay_order_irrelevant) ... ok
test_replay_payload_with_nonpositive_quantity_returns_false (test_inventory.IdempotencyTests.test_replay_payload_with_nonpositive_quantity_returns_false) ... ok
test_replay_with_split_lines_same_aggregate (test_inventory.IdempotencyTests.test_replay_with_split_lines_same_aggregate) ... ok
test_one (test_inventory.OriginalSmoke.test_one) ... ok
test_empty_lines_succeeds (test_inventory.ReserveTests.test_empty_lines_succeeds) ... ok
test_failure_is_atomic_across_lines (test_inventory.ReserveTests.test_failure_is_atomic_across_lines) ... ok
test_insufficient_stock_returns_false (test_inventory.ReserveTests.test_insufficient_stock_returns_false) ... ok
test_large_success_deducts_aggregate (test_inventory.ReserveTests.test_large_success_deducts_aggregate) ... ok
test_nonpositive_quantity_fails_atomically_even_after_valid_lines (test_inventory.ReserveTests.test_nonpositive_quantity_fails_atomically_even_after_valid_lines) ... ok
test_nonpositive_quantity_returns_false (test_inventory.ReserveTests.test_nonpositive_quantity_returns_false) ... ok
test_repeated_sku_lines_aggregate_in_place (test_inventory.ReserveTests.test_repeated_sku_lines_aggregate_in_place) ... ok
test_success_deducts (test_inventory.ReserveTests.test_success_deducts) ... ok
test_two_independent_requests_coexist (test_inventory.ReserveTests.test_two_independent_requests_coexist) ... ok
test_unknown_sku_returns_false_without_mutation (test_inventory.ReserveTests.test_unknown_sku_returns_false_without_mutation) ... ok
test_unknown_sku_single_line_returns_false (test_inventory.ReserveTests.test_unknown_sku_single_line_returns_false) ... ok
test_snapshot_detached_from_caller (test_inventory.SnapshotTests.test_snapshot_detached_from_caller) ... ok
test_snapshot_detached_from_inventory (test_inventory.SnapshotTests.test_snapshot_detached_from_inventory) ... ok
======================================================================
FAIL: test_cancelling_one_request_leaves_others_intact (test_inventory.CancelTests.test_cancelling_one_request_leaves_others_intact)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py", line 174, in test_cancelling_one_request_leaves_others_intact
self.assertEqual(inv.snapshot(), {'a': 9})
AssertionError: {'a': 8} != {'a': 9}
- {'a': 8}
? ^
+ {'a': 9}
? ^
----------------------------------------------------------------------
Ran 30 tests in 0.001s
FAILED (failures=1)Full event evidence
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"timestamp": "2026-10-18T20:09:23.662000",
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"text": "test_different_sku_for_active_id_returns_false (test_inventory.IdempotencyTests.test_different_sku_for_active_id_returns_false) ... ok\ntest_different_skus_list_for_active_id_returns_false (test_inventory.IdempotencyTests.test_different_skus_list_for_active_id_returns_false) ... ok\ntest_exact_replay_returns_true_without_deduction (test_inventory.IdempotencyTests.test_exact_replay_returns_true_without_deduction) ... ok\ntest_failed_request_is_not_remembered (test_inventory.IdempotencyTests.test_failed_request_is_not_remembered) ... ok\ntest_replay_order_irrelevant (test_inventory.IdempotencyTests.test_replay_order_irrelevant) ... ok\ntest_replay_payload_with_nonpositive_quantity_returns_false (test_inventory.IdempotencyTests.test_replay_payload_with_nonpositive_quantity_returns_false) ... ok\ntest_replay_with_split_lines_same_aggregate (test_inventory.IdempotencyTests.test_replay_with_split_lines_same_aggregate) ... ok\ntest_one (test_inventory.OriginalSmoke.test_one) ... ok\ntest_empty_lines_succeeds (test_inventory.ReserveTests.test_empty_lines_succeeds) ... ok\ntest_failure_is_atomic_across_lines (test_inventory.ReserveTests.test_failure_is_atomic_across_lines) ... ok\ntest_insufficient_stock_returns_false (test_inventory.ReserveTests.test_insufficient_stock_returns_false) ... ok\ntest_large_success_deducts_aggregate (test_inventory.ReserveTests.test_large_success_deducts_aggregate) ... ok\ntest_nonpositive_quantity_fails_atomically_even_after_valid_lines (test_inventory.ReserveTests.test_nonpositive_quantity_fails_atomically_even_after_valid_lines) ... ok\ntest_nonpositive_quantity_returns_false (test_inventory.ReserveTests.test_nonpositive_quantity_returns_false) ... ok\ntest_repeated_sku_lines_aggregate_in_place (test_inventory.ReserveTests.test_repeated_sku_lines_aggregate_in_place) ... ok\ntest_success_deducts (test_inventory.ReserveTests.test_success_deducts) ... ok\ntest_two_independent_requests_coexist (test_inventory.ReserveTests.test_two_independent_requests_coexist) ... ok\ntest_unknown_sku_returns_false_without_mutation (test_inventory.ReserveTests.test_unknown_sku_returns_false_without_mutation) ... ok\ntest_unknown_sku_single_line_returns_false (test_inventory.ReserveTests.test_unknown_sku_single_line_returns_false) ... ok\ntest_snapshot_detached_from_caller (test_inventory.SnapshotTests.test_snapshot_detached_from_caller) ... ok\ntest_snapshot_detached_from_inventory (test_inventory.SnapshotTests.test_snapshot_detached_from_inventory) ... ok\n\n======================================================================\nFAIL: test_cancelling_one_request_leaves_others_intact (test_inventory.CancelTests.test_cancelling_one_request_leaves_others_intact)\n----------------------------------------------------------------------\nTraceback (most recent call last):\n File \"/private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py\", line 174, in test_cancelling_one_request_leaves_others_intact\n self.assertEqual(inv.snapshot(), {'a': 9})\nAssertionError: {'a': 8} != {'a': 9}\n- {'a': 8}\n? ^\n\n+ {'a': 9}\n? ^\n\n\n----------------------------------------------------------------------\nRan 30 tests in 0.001s\n\nFAILED (failures=1)"
}
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}Tool request: file_editor
{
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"old_str": "self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 9})\n self.assertFalse(inv.reserve('r2', [('a', 5)])) # still active, wrong payload fails\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n self.assertEqual(inv.snapshot(), {'a': 9})",
"new_str": "self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 8})\n self.assertFalse(inv.reserve('r2', [('a', 5)])) # still active, wrong payload fails\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n self.assertEqual(inv.snapshot(), {'a': 8})",
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}Full event evidence
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The file /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py has been edited. Here's the result of running `cat -n` on a snippet of /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py:
170 inv = Inventory({'a': 10})
171 self.assertTrue(inv.reserve('r1', [('a', 3)]))
172 self.assertTrue(inv.reserve('r2', [('a', 2)]))
173 self.assertTrue(inv.cancel('r1'))
174 self.assertEqual(inv.snapshot(), {'a': 8})
175 self.assertFalse(inv.reserve('r2', [('a', 5)])) # still active, wrong payload fails
176 self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent
177 self.assertEqual(inv.snapshot(), {'a': 8})
178
179
180 class SnapshotTests(unittest.TestCase):
181 def test_snapshot_detached_from_inventory(self):
182
Review the changes and make sure they are as expected. Edit the file again if necessary.Full event evidence
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{
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"type": "text",
"text": "The file /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py has been edited. Here's the result of running `cat -n` on a snippet of /private/tmp/odsc-workshop6-v2/reservation-single-t1/test_inventory.py:\n 170\t inv = Inventory({'a': 10})\n 171\t self.assertTrue(inv.reserve('r1', [('a', 3)]))\n 172\t self.assertTrue(inv.reserve('r2', [('a', 2)]))\n 173\t self.assertTrue(inv.cancel('r1'))\n 174\t self.assertEqual(inv.snapshot(), {'a': 8})\n 175\t self.assertFalse(inv.reserve('r2', [('a', 5)])) # still active, wrong payload fails\n 176\t self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n 177\t self.assertEqual(inv.snapshot(), {'a': 8})\n 178\t\n 179\t\n 180\tclass SnapshotTests(unittest.TestCase):\n 181\t def test_snapshot_detached_from_inventory(self):\n 182\t\nReview the changes and make sure they are as expected. Edit the file again if necessary."
}
],
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"old_content": "import unittest\nfrom inventory import Inventory\n\n\nclass OriginalSmoke(unittest.TestCase):\n def test_one(self):\n x = Inventory({'a': 3})\n self.assertTrue(x.reserve('r', [('a', 1)]))\n self.assertEqual(x.snapshot(), {'a': 2})\n\n\nclass ConstructorTests(unittest.TestCase):\n def test_copies_input_dict(self):\n stock = {'a': 3, 'b': 2}\n inv = Inventory(stock)\n stock['a'] = 999\n stock['c'] = 7\n self.assertEqual(inv.snapshot(), {'a': 3, 'b': 2})\n\n def test_copies_input_skus(self):\n skus = ['x', 'y']\n inv = Inventory({skus[0]: 1})\n skus.append('z')\n self.assertEqual(inv.snapshot(), {'x': 1})\n\n\nclass ReserveTests(unittest.TestCase):\n def test_success_deducts(self):\n inv = Inventory({'a': 10, 'b': 5})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 7, 'b': 3})\n\n def test_insufficient_stock_returns_false(self):\n inv = Inventory({'a': 2})\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_failure_is_atomic_across_lines(self):\n inv = Inventory({'a': 5, 'b': 1})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 2), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 1})\n\n def test_unknown_sku_returns_false_without_mutation(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', 1), ('ghost', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_unknown_sku_single_line_returns_false(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('nope', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_repeated_sku_lines_aggregate_in_place(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_nonpositive_quantity_returns_false(self):\n for qty in (0, -3):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', qty)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_nonpositive_quantity_fails_atomically_even_after_valid_lines(self):\n inv = Inventory({'a': 5, 'b': 5})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', -1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 5})\n\n def test_empty_lines_succeeds(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', []))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_large_success_deducts_aggregate(self):\n inv = Inventory({'a': 3, 'b': 4})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1), ('a', 1), ('b', 4)]))\n self.assertEqual(inv.snapshot(), {'a': 0, 'b': 0})\n\n def test_two_independent_requests_coexist(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.reserve('r2', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 3})\n\n\nclass IdempotencyTests(unittest.TestCase):\n def test_exact_replay_returns_true_without_deduction(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 7})\n\n def test_replay_order_irrelevant(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2), ('b', 3)]))\n self.assertTrue(inv.reserve('r1', [('b', 3), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 7})\n\n def test_replay_with_split_lines_same_aggregate(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_quantity_for_active_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_sku_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_different_skus_list_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_failed_request_is_not_remembered(self):\n inv = Inventory({'a': 1})\n self.assertFalse(inv.reserve('r1', [('a', 5)]))\n self.assertTrue(inv.reserve('r1', [('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 0})\n\n def test_replay_payload_with_nonpositive_quantity_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 0)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n\nclass CancelTests(unittest.TestCase):\n def test_cancel_restores_stock(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10, 'b': 10})\n\n def test_cancel_exactly_once(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertFalse(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancel_of_absent_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertFalse(inv.cancel('nope'))\n\n def test_cancel_restores_aggregated_repeated_skus(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_cancelled_id_can_be_reused(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertTrue(inv.reserve('r1', [('a', 6)]))\n self.assertEqual(inv.snapshot(), {'a': 4})\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancelling_one_request_leaves_others_intact(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r2', [('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 9})\n self.assertFalse(inv.reserve('r2', [('a', 5)])) # still active, wrong payload fails\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n self.assertEqual(inv.snapshot(), {'a': 9})\n\n\nclass SnapshotTests(unittest.TestCase):\n def test_snapshot_detached_from_inventory(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertEqual(snap, {'a': 5})\n\n def test_snapshot_detached_from_caller(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n snap['a'] = 999\n snap['z'] = 1\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n\nif __name__ == '__main__':\n unittest.main()\n",
"new_content": "import unittest\nfrom inventory import Inventory\n\n\nclass OriginalSmoke(unittest.TestCase):\n def test_one(self):\n x = Inventory({'a': 3})\n self.assertTrue(x.reserve('r', [('a', 1)]))\n self.assertEqual(x.snapshot(), {'a': 2})\n\n\nclass ConstructorTests(unittest.TestCase):\n def test_copies_input_dict(self):\n stock = {'a': 3, 'b': 2}\n inv = Inventory(stock)\n stock['a'] = 999\n stock['c'] = 7\n self.assertEqual(inv.snapshot(), {'a': 3, 'b': 2})\n\n def test_copies_input_skus(self):\n skus = ['x', 'y']\n inv = Inventory({skus[0]: 1})\n skus.append('z')\n self.assertEqual(inv.snapshot(), {'x': 1})\n\n\nclass ReserveTests(unittest.TestCase):\n def test_success_deducts(self):\n inv = Inventory({'a': 10, 'b': 5})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 7, 'b': 3})\n\n def test_insufficient_stock_returns_false(self):\n inv = Inventory({'a': 2})\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_failure_is_atomic_across_lines(self):\n inv = Inventory({'a': 5, 'b': 1})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 2), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 1})\n\n def test_unknown_sku_returns_false_without_mutation(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', 1), ('ghost', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_unknown_sku_single_line_returns_false(self):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('nope', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_repeated_sku_lines_aggregate_in_place(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 2})\n\n def test_nonpositive_quantity_returns_false(self):\n for qty in (0, -3):\n inv = Inventory({'a': 5})\n self.assertFalse(inv.reserve('r1', [('a', qty)]))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_nonpositive_quantity_fails_atomically_even_after_valid_lines(self):\n inv = Inventory({'a': 5, 'b': 5})\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', -1)]))\n self.assertEqual(inv.snapshot(), {'a': 5, 'b': 5})\n\n def test_empty_lines_succeeds(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', []))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_large_success_deducts_aggregate(self):\n inv = Inventory({'a': 3, 'b': 4})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1), ('a', 1), ('b', 4)]))\n self.assertEqual(inv.snapshot(), {'a': 0, 'b': 0})\n\n def test_two_independent_requests_coexist(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.reserve('r2', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 3})\n\n\nclass IdempotencyTests(unittest.TestCase):\n def test_exact_replay_returns_true_without_deduction(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 7})\n\n def test_replay_order_irrelevant(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2), ('b', 3)]))\n self.assertTrue(inv.reserve('r1', [('b', 3), ('a', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 7})\n\n def test_replay_with_split_lines_same_aggregate(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_quantity_for_active_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 3)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n def test_different_sku_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('b', 2)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_different_skus_list_for_active_id_returns_false(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 2), ('b', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 8, 'b': 10})\n\n def test_failed_request_is_not_remembered(self):\n inv = Inventory({'a': 1})\n self.assertFalse(inv.reserve('r1', [('a', 5)]))\n self.assertTrue(inv.reserve('r1', [('a', 1)]))\n self.assertEqual(inv.snapshot(), {'a': 0})\n\n def test_replay_payload_with_nonpositive_quantity_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertFalse(inv.reserve('r1', [('a', 0)]))\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n\nclass CancelTests(unittest.TestCase):\n def test_cancel_restores_stock(self):\n inv = Inventory({'a': 10, 'b': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3), ('b', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10, 'b': 10})\n\n def test_cancel_exactly_once(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertFalse(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancel_of_absent_id_returns_false(self):\n inv = Inventory({'a': 10})\n self.assertFalse(inv.cancel('nope'))\n\n def test_cancel_restores_aggregated_repeated_skus(self):\n inv = Inventory({'a': 5})\n self.assertTrue(inv.reserve('r1', [('a', 1), ('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n def test_cancelled_id_can_be_reused(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 4)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertTrue(inv.reserve('r1', [('a', 6)]))\n self.assertEqual(inv.snapshot(), {'a': 4})\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 10})\n\n def test_cancelling_one_request_leaves_others_intact(self):\n inv = Inventory({'a': 10})\n self.assertTrue(inv.reserve('r1', [('a', 3)]))\n self.assertTrue(inv.reserve('r2', [('a', 2)]))\n self.assertTrue(inv.cancel('r1'))\n self.assertEqual(inv.snapshot(), {'a': 8})\n self.assertFalse(inv.reserve('r2', [('a', 5)])) # still active, wrong payload fails\n self.assertTrue(inv.reserve('r2', [('a', 2)])) # exact replay still idempotent\n self.assertEqual(inv.snapshot(), {'a': 8})\n\n\nclass SnapshotTests(unittest.TestCase):\n def test_snapshot_detached_from_inventory(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n self.assertTrue(inv.reserve('r1', [('a', 2)]))\n self.assertEqual(snap, {'a': 5})\n\n def test_snapshot_detached_from_caller(self):\n inv = Inventory({'a': 5})\n snap = inv.snapshot()\n snap['a'] = 999\n snap['z'] = 1\n self.assertEqual(inv.snapshot(), {'a': 5})\n\n\nif 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..............................
----------------------------------------------------------------------
Ran 30 tests in 0.000s
OK
total 32
drwxr-xr-x@ 6 instructor.shah wheel 192 Oct 18 20:09 .
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Full event evidence
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Here's the result of running `cat -n` on /private/tmp/odsc-workshop6-v2/reservation-single-t1/inventory.py:
1 class Inventory:
2 def __init__(self, stock):
3 self.stock = dict(stock)
4 self.requests = {}
5
6 def reserve(self, request_id, lines):
7 if request_id in self.requests:
8 return self.requests[request_id] == self._aggregate(lines)
9 aggregate = self._aggregate(lines)
10 if aggregate is None:
11 return False
12 for sku, n in aggregate.items():
13 if self.stock.get(sku, 0) < n:
14 return False
15 for sku, n in aggregate.items():
16 self.stock[sku] -= n
17 self.requests[request_id] = aggregate
18 return True
19
20 def cancel(self, request_id):
21 if request_id not in self.requests:
22 return False
23 for sku, n in self.requests[request_id].items():
24 self.stock[sku] += n
25 del self.requests[request_id]
26 return True
27
28 def snapshot(self):
29 return dict(self.stock)
30
31 @staticmethod
32 def _aggregate(lines):
33 total = {}
34 for sku, n in lines:
35 if isinstance(n, bool) or not isinstance(n, int) or n <= 0:
36 return None
37 total[sku] = total.get(sku, 0) + n
38 return total
39Full event evidence
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Ran 30 tests in 0.000s
OK
0Full event evidence
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## Report
**Review (defects seeded in the original `inventory.py`)**
1. **Constructor aliased the input dict** (`self.stock = stock`) — violated "Constructor must copy input."
2. **Atomicity broken**: `reserve` deducted line-by-line while validating, so a failing multi-line request left partial mutations.
3. **Aggregation wrong**: repeated-SKU lines were never summed (`dict(lines)` kept last), so availability checks/restores used incorrect quantities.
4. **Idempotency always True**: any replay of an active ID returned True regardless of payload — a different payload must return False.
5. **No positive-quantity validation**: 0/negative line quantities were accepted (negative would even add stock).
6. **`cancel` was not exactly-once**: the entry was never removed, so a second `cancel` restored stock again and returned True; cancelled IDs couldn't be reused.
7. **`snapshot` returned the live internal dict** — not detached.
**Implementation (`inventory.py`, rewritten)**
- Constructor deep-*shallow* copies via `dict(stock)`; `snapshot` returns `dict(self.stock)` (detached).
- `reserve` first aggregates quantities (repeated SKUs summed, order-independent), rejects nonpositive/non-int quantities (including `bool`), then verifies all stock before any mutation — atomic.
- Active-ID replays compare the stored aggregate against the newly aggregated payload: exact match → True without deduction; any difference (amounts, SKUs, line set) → False; failed requests stored nothing.
- `cancel` restores quantities from the stored aggregate, deletes the entry (exactly-once True), and frees the ID for reuse.
- Empty lines reserve successfully with zero aggregate.
**Verification** — `PYTHONDONTWRITEBYTECODE=1 python3 -m unittest test_inventory` → **30 tests, all pass** (fresh run after fixes). No `__pycache__` left, no commits, no memory files, nothing touched outside the workspace.
Regression tests (`test_inventory.py`, 30 cases incl. the original smoke test) cover every README clause:
- **Constructor**: input dict copy, input SKU-list detachment.
- **Reserve**: success deduction, insufficient stock, multi-line atomicity (asymmetric failure order), unknown SKU alone and mixed, repeated-SKU aggregation, nonpositive (0/negative) rejection incl. atomicity after valid lines, empty lines, aggregate deduction, independent concurrent IDs.
- **Idempotency**: exact replay, order-irrelevant replay, split-line same-aggregate replay, wrong quantity/SKU/SKU-set → False, failed-not-remembered, nonpositive replay.
- **Cancel**: restore, exactly-once, absent ID, aggregated repeated-SKU restore, ID reuse after cancel, one-cancel-leaves-others with wrong-payload/replay checks.
- **Snapshot**: detached from both inventory (post-reserve) and caller (post-mutation).
**Changed files**: `inventory.py`, `test_inventory.py` (only files permitted to change; `README.md` untouched).
One judgment call worth noting: the README only defines quantities as "positive integer", not SKU types, so `_aggregate` rejects non-positive/non-`int` quantities but accepts any hashable SKU. If you intended SKUs to be restricted to `str`, that's a one-line change in `_aggregate`.
Full event evidence
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"text": "## Report\n\n**Review (defects seeded in the original `inventory.py`)**\n1. **Constructor aliased the input dict** (`self.stock = stock`) — violated \"Constructor must copy input.\"\n2. **Atomicity broken**: `reserve` deducted line-by-line while validating, so a failing multi-line request left partial mutations.\n3. **Aggregation wrong**: repeated-SKU lines were never summed (`dict(lines)` kept last), so availability checks/restores used incorrect quantities.\n4. **Idempotency always True**: any replay of an active ID returned True regardless of payload — a different payload must return False.\n5. **No positive-quantity validation**: 0/negative line quantities were accepted (negative would even add stock).\n6. **`cancel` was not exactly-once**: the entry was never removed, so a second `cancel` restored stock again and returned True; cancelled IDs couldn't be reused.\n7. **`snapshot` returned the live internal dict** — not detached.\n\n**Implementation (`inventory.py`, rewritten)**\n- Constructor deep-*shallow* copies via `dict(stock)`; `snapshot` returns `dict(self.stock)` (detached).\n- `reserve` first aggregates quantities (repeated SKUs summed, order-independent), rejects nonpositive/non-int quantities (including `bool`), then verifies all stock before any mutation — atomic.\n- Active-ID replays compare the stored aggregate against the newly aggregated payload: exact match → True without deduction; any difference (amounts, SKUs, line set) → False; failed requests stored nothing.\n- `cancel` restores quantities from the stored aggregate, deletes the entry (exactly-once True), and frees the ID for reuse.\n- Empty lines reserve successfully with zero aggregate.\n\n**Verification** — `PYTHONDONTWRITEBYTECODE=1 python3 -m unittest test_inventory` → **30 tests, all pass** (fresh run after fixes). No `__pycache__` left, no commits, no memory files, nothing touched outside the workspace.\n\nRegression tests (`test_inventory.py`, 30 cases incl. the original smoke test) cover every README clause:\n- **Constructor**: input dict copy, input SKU-list detachment.\n- **Reserve**: success deduction, insufficient stock, multi-line atomicity (asymmetric failure order), unknown SKU alone and mixed, repeated-SKU aggregation, nonpositive (0/negative) rejection incl. atomicity after valid lines, empty lines, aggregate deduction, independent concurrent IDs.\n- **Idempotency**: exact replay, order-irrelevant replay, split-line same-aggregate replay, wrong quantity/SKU/SKU-set → False, failed-not-remembered, nonpositive replay.\n- **Cancel**: restore, exactly-once, absent ID, aggregated repeated-SKU restore, ID reuse after cancel, one-cancel-leaves-others with wrong-payload/replay checks.\n- **Snapshot**: detached from both inventory (post-reserve) and caller (post-mutation).\n\n**Changed files**: `inventory.py`, `test_inventory.py` (only files permitted to change; `README.md` untouched).\n\nOne judgment call worth noting: the README only defines quantities as \"positive integer\", not SKU types, so `_aggregate` rejects non-positive/non-`int` quantities but accepts any hashable SKU. If you intended SKUs to be restricted to `str`, that's a one-line change in `_aggregate`."
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