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   "output": "FFFFF                                                                    [100%]\n=================================== FAILURES ===================================\n_____________________________ test_classic_example _____________________________\ntest_ladder.py:3: in test_classic_example\n    from ladder import ladder_length\nE     File \"/Users/richardblundell/repos/llmcoderlab/.lab/runs/2/glm4-9b/agentic/word-ladder/s0/ladder.py\", line 14\nE       steps += 1    return 0\nE                     ^^^^^^\nE   SyntaxError: invalid syntax\n_____________________________ test_unreachable_end _____________________________\ntest_ladder.py:7: in test_unreachable_end\n    from ladder import ladder_length\nE     File \"/Users/richardblundell/repos/llmcoderlab/.lab/runs/2/glm4-9b/agentic/word-ladder/s0/ladder.py\", line 14\nE       steps += 1    return 0\nE                     ^^^^^^\nE   SyntaxError: invalid syntax\n_______________________________ test_single_step _______________________________\ntest_ladder.py:11: in test_single_step\n    from ladder import ladder_length\nE     File \"/Users/richardblundell/repos/llmcoderlab/.lab/runs/2/glm4-9b/agentic/word-ladder/s0/ladder.py\", line 14\nE       steps += 1    return 0\nE                     ^^^^^^\nE   SyntaxError: invalid syntax\n____________________________ test_shortest_is_found ____________________________\ntest_ladder.py:15: in test_shortest_is_found\n    from ladder import ladder_length\nE     File \"/Users/richardblundell/repos/llmcoderlab/.lab/runs/2/glm4-9b/agentic/word-ladder/s0/ladder.py\", line 14\nE       steps += 1    return 0\nE                     ^^^^^^\nE   SyntaxError: invalid syntax\n__________________________ test_larger_input_is_fast ___________________________\ntest_ladder.py:20: in test_larger_input_is_fast\n    from ladder import ladder_length\nE     File \"/Users/richardblundell/repos/llmcoderlab/.lab/runs/2/glm4-9b/agentic/word-ladder/s0/ladder.py\", line 14\nE       steps += 1    return 0\nE                     ^^^^^^\nE   SyntaxError: invalid syntax\n=========================== short test summary info ============================\nFAILED test_ladder.py::test_classic_example -   File \"/Users/richardblundell/...\nFAILED test_ladder.py::test_unreachable_end -   File \"/Users/richardblundell/...\nFAILED test_ladder.py::test_single_step -   File \"/Users/richardblundell/repo...\nFAILED test_ladder.py::test_shortest_is_found -   File \"/Users/richardblundel...\nFAILED test_ladder.py::test_larger_input_is_fast -   File \"/Users/richardblun...\n5 failed in 0.02s\n"
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 "files": {
  "ladder.py": "def ladder_length(begin: str, end: str, word_list: list[str]) -> int:\n    queue = [begin]\n    visited = set([begin])\n    steps = 0\n    while queue:\n        for _ in range(len(queue)):\n            current_word = queue.pop(0)\n            if current_word == end:\n                return steps + 1\n            for next_word in word_list:\n                if next_word not in visited and next_word != current_word:\n                    visited.add(next_word)\n                    queue.append(next_word)\n        steps += 1    return 0",
  "test_ladder.py": "# Test cases for ladder.py\ndef test_classic_example():\n    from ladder import ladder_length\n    assert ladder.ladder_length('hit', 'cog', ['hot','dot','dog','lot','log','cog']) == 5\n\ndef test_unreachable_end():\n    from ladder import ladder_length\n    assert ladder.ladder_length('hit', 'cog', ['hot', 'dot', 'dog', 'lot', 'log']) == 0\n\ndef test_single_step():\n    from ladder import ladder_length\n    assert ladder.ladder_length('a', 'c', ['a', 'b', 'c']) == 2\n\ndef test_shortest_is_found():\n    from ladder import ladder_length\n    words = [a + b + c for a in 'abcdefgh' for b in 'abcdefgh' for c in 'abcdefgh']\n    assert ladder.ladder_length('hit', 'cot', words) == 3\n\ndef test_larger_input_is_fast():\n    from ladder import ladder_length\n    words = [a + b + c for a in 'abcdefgh' for b in 'abcdefgh' for c in 'abcdefgh']\n    start = time.monotonic()\n    assert ladder.ladder_length('aaa', 'hhh', words) == 4\n    assert time.monotonic() - start < 2.0"
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 "test_output": "FFFFF                                                                    [100%]\n=================================== FAILURES ===================================\n_____________________________ test_classic_example _____________________________\ntest_ladder.py:3: in test_classic_example\n    from ladder import ladder_length\nE     File \"/Users/richardblundell/repos/llmcoderlab/.lab/runs/2/glm4-9b/agentic/word-ladder/s0/ladder.py\", line 14\nE       steps += 1    return 0\nE                     ^^^^^^\nE   SyntaxError: invalid syntax\n_____________________________ test_unreachable_end _____________________________\ntest_ladder.py:7: in test_unreachable_end\n    from ladder import ladder_length\nE     File \"/Users/richardblundell/repos/llmcoderlab/.lab/runs/2/glm4-9b/agentic/word-ladder/s0/ladder.py\", line 14\nE       steps += 1    return 0\nE                     ^^^^^^\nE   SyntaxError: invalid syntax\n_______________________________ test_single_step _______________________________\ntest_ladder.py:11: in test_single_step\n    from ladder import ladder_length\nE     File \"/Users/richardblundell/repos/llmcoderlab/.lab/runs/2/glm4-9b/agentic/word-ladder/s0/ladder.py\", line 14\nE       steps += 1    return 0\nE                     ^^^^^^\nE   SyntaxError: invalid syntax\n____________________________ test_shortest_is_found ____________________________\ntest_ladder.py:15: in test_shortest_is_found\n    from ladder import ladder_length\nE     File \"/Users/richardblundell/repos/llmcoderlab/.lab/runs/2/glm4-9b/agentic/word-ladder/s0/ladder.py\", line 14\nE       steps += 1    return 0\nE                     ^^^^^^\nE   SyntaxError: invalid syntax\n__________________________ test_larger_input_is_fast ___________________________\ntest_ladder.py:20: in test_larger_input_is_fast\n    from ladder import ladder_length\nE     File \"/Users/richardblundell/repos/llmcoderlab/.lab/runs/2/glm4-9b/agentic/word-ladder/s0/ladder.py\", line 14\nE       steps += 1    return 0\nE                     ^^^^^^\nE   SyntaxError: invalid syntax\n=========================== short test summary info ============================\nFAILED test_ladder.py::test_classic_example -   File \"/Users/richardblundell/...\nFAILED test_ladder.py::test_unreachable_end -   File \"/Users/richardblundell/...\nFAILED test_ladder.py::test_single_step -   File \"/Users/richardblundell/repo...\nFAILED test_ladder.py::test_shortest_is_found -   File \"/Users/richardblundel...\nFAILED test_ladder.py::test_larger_input_is_fast -   File \"/Users/richardblun...\n5 failed in 0.02s\n"
}