{
  "conversationId": "ts-v2-test-1733864400-1765381376430",
  "metadata": {
    "agentId": "ts-v2-test-1733864400",
    "feature": "Date formatter function that formats Date objects as YYYY-MM-DD",
    "filePath": "/tmp/cerebras-test-ts-v2/formatter.ts",
    "contextFiles": [],
    "completedAt": "2025-12-10T15:43:08.471Z"
  },
  "conversation": [
    {
      "role": "system",
      "content": "You are a TDD expert. Follow Red-Green-Refactor strictly. Use Given/When/Then test structure. Generate ONLY code - no markdown code blocks, no explanations, just raw code."
    },
    {
      "role": "user",
      "content": "# TDD Red Phase: Write Failing Tests\n\n## Feature\nDate formatter function that formats Date objects as YYYY-MM-DD\n\n## Target Implementation File\n/tmp/cerebras-test-ts-v2/formatter.ts\n\n## Context Files\n(none provided)\n\n## Requirements\n1. Write comprehensive tests using Given/When/Then structure\n2. Tests MUST fail initially (no implementation exists yet)\n3. Cover happy path AND edge cases\n4. Use appropriate test framework for the file type\n5. Include setup/teardown if needed\n6. **CRITICAL for TypeScript/JavaScript: Include ALL import statements at top of test file**\n7. **Import any functions/classes/helpers you use from the implementation file**\n8. **Example: `import { formatDate, Given, When, Then } from './filename';`**\n9. For Python: `from filename import function_name`\n10. For Rust: `use crate::module::function_name;` or inline mod\n\nIMPORTANT: Generate ONLY the test file content. No markdown code blocks, no explanations, just raw code.",
      "timestamp": "2025-12-10T15:42:56.430Z"
    },
    {
      "role": "assistant",
      "content": "\nimport { formatDate, Given, When, Then } from './formatter';\n\ndescribe('Date Formatter', () => {\n    Given('a date object representing January 1, 2023', () => {\n        const date = new Date('2023-01-01');\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return \"2023-01-01\"', () => {\n                expect(result).toBe('2023-01-01');\n            });\n        });\n    });\n\n    Given('a date object representing December 31, 1999', () => {\n        const date = new Date('1999-12-31');\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return \"1999-12-31\"', () => {\n                expect(result).toBe('1999-12-31');\n            });\n        });\n    });\n\n    Given('a date object representing February 29, 2020 (leap year)', () => {\n        const date = new Date('2020-02-29');\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return \"2020-02-29\"', () => {\n                expect(result).toBe('2020-02-29');\n            });\n        });\n    });\n\n    Given('a date object with time components', () => {\n        const date = new Date('2023-05-15T14:30:45.123Z');\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return only the date part \"2023-05-15\"', () => {\n                expect(result).toBe('2023-05-15');\n            });\n        });\n    });\n\n    Given('a date object representing the current date', () => {\n        const date = new Date();\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return the current date in YYYY-MM-DD format', () => {\n                const expected = date.toISOString().split('T')[0];\n                expect(result).toBe(expected);\n            });\n        });\n    });\n\n    Given('a date object representing January 1, 1970 (Unix epoch)', () => {\n        const date = new Date('1970-01-01');\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return \"1970-01-01\"', () => {\n                expect(result).toBe('1970-01-01');\n            });\n        });\n    });\n\n    Given('a date object representing a single digit month and day', () => {\n        const date = new Date('2023-03-05');\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return \"2023-03-05\" with leading zeros', () => {\n                expect(result).toBe('2023-03-05');\n            });\n        });\n    });\n\n    Given('null as input', () => {\n        const date = null as any;\n        \n        When('formatting the date', () => {\n            Then('it should throw an error', () => {\n                expect(() => formatDate(date)).toThrow('Invalid date');\n            });\n        });\n    });\n\n    Given('undefined as input', () => {\n        const date = undefined as any;\n        \n        When('formatting the date', () => {\n            Then('it should throw an error', () => {\n                expect(() => formatDate(date)).toThrow('Invalid date');\n            });\n        });\n    });\n\n    Given('an invalid date object', () => {\n        const date = new Date('invalid');\n        \n        When('formatting the date', () => {\n            Then('it should throw an error', () => {\n                expect(() => formatDate(date)).toThrow('Invalid date');\n            });\n        });\n    });\n\n    Given('a non-date object as input', () => {\n        const date = '2023-01-01' as any;\n        \n        When('formatting the date', () => {\n            Then('it should throw an error', () => {\n                expect(() => formatDate(date)).toThrow('Invalid date');\n            });\n        });\n    });\n});",
      "timestamp": "2025-12-10T15:42:57.254Z"
    },
    {
      "role": "user",
      "content": "# TDD Green Phase: Write Implementation\n\nThe tests you just wrote are now failing. Write the MINIMUM implementation to make them pass.\n\n## Test File Content\n```\nimport { formatDate, Given, When, Then } from './formatter';\n\ndescribe('Date Formatter', () => {\n    Given('a date object representing January 1, 2023', () => {\n        const date = new Date('2023-01-01');\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return \"2023-01-01\"', () => {\n                expect(result).toBe('2023-01-01');\n            });\n        });\n    });\n\n    Given('a date object representing December 31, 1999', () => {\n        const date = new Date('1999-12-31');\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return \"1999-12-31\"', () => {\n                expect(result).toBe('1999-12-31');\n            });\n        });\n    });\n\n    Given('a date object representing February 29, 2020 (leap year)', () => {\n        const date = new Date('2020-02-29');\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return \"2020-02-29\"', () => {\n                expect(result).toBe('2020-02-29');\n            });\n        });\n    });\n\n    Given('a date object with time components', () => {\n        const date = new Date('2023-05-15T14:30:45.123Z');\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return only the date part \"2023-05-15\"', () => {\n                expect(result).toBe('2023-05-15');\n            });\n        });\n    });\n\n    Given('a date object representing the current date', () => {\n        const date = new Date();\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return the current date in YYYY-MM-DD format', () => {\n                const expected = date.toISOString().split('T')[0];\n                expect(result).toBe(expected);\n            });\n        });\n    });\n\n    Given('a date object representing January 1, 1970 (Unix epoch)', () => {\n        const date = new Date('1970-01-01');\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return \"1970-01-01\"', () => {\n                expect(result).toBe('1970-01-01');\n            });\n        });\n    });\n\n    Given('a date object representing a single digit month and day', () => {\n        const date = new Date('2023-03-05');\n        \n        When('formatting the date', () => {\n            const result = formatDate(date);\n            \n            Then('it should return \"2023-03-05\" with leading zeros', () => {\n                expect(result).toBe('2023-03-05');\n            });\n        });\n    });\n\n    Given('null as input', () => {\n        const date = null as any;\n        \n        When('formatting the date', () => {\n            Then('it should throw an error', () => {\n                expect(() => formatDate(date)).toThrow('Invalid date');\n            });\n        });\n    });\n\n    Given('undefined as input', () => {\n        const date = undefined as any;\n        \n        When('formatting the date', () => {\n            Then('it should throw an error', () => {\n                expect(() => formatDate(date)).toThrow('Invalid date');\n            });\n        });\n    });\n\n    Given('an invalid date object', () => {\n        const date = new Date('invalid');\n        \n        When('formatting the date', () => {\n            Then('it should throw an error', () => {\n                expect(() => formatDate(date)).toThrow('Invalid date');\n            });\n        });\n    });\n\n    Given('a non-date object as input', () => {\n        const date = '2023-01-01' as any;\n        \n        When('formatting the date', () => {\n            Then('it should throw an error', () => {\n                expect(() => formatDate(date)).toThrow('Invalid date');\n            });\n        });\n    });\n});\n```\n\n## Target Implementation File\n/tmp/cerebras-test-ts-v2/formatter.ts\n\n## Requirements\n1. Implement ONLY what the tests require\n2. Don't add extra features (YAGNI)\n3. Make all tests pass\n4. Follow existing code patterns from context\n5. **CRITICAL: Export all functions/classes that the tests import**\n6. **For TypeScript/JavaScript: use `export function name()` or `export { name }`**\n7. **For Python: functions are exported by default**\n8. **For Rust: use `pub fn name()` for public functions**\n\nIMPORTANT: Generate ONLY the implementation file content. No markdown code blocks, no explanations, just raw code.",
      "timestamp": "2025-12-10T15:42:57.255Z"
    },
    {
      "role": "assistant",
      "content": "\nexport function formatDate(date: Date): string {\n    if (!(date instanceof Date) || isNaN(date.getTime())) {\n        throw new Error('Invalid date');\n    }\n    \n    const year = date.getFullYear();\n    const month = String(date.getMonth() + 1).padStart(2, '0');\n    const day = String(date.getDate()).padStart(2, '0');\n    \n    return `${year}-${month}-${day}`;\n}\n\nexport function Given(description: string, fn: () => void): void {\n    fn();\n}\n\nexport function When(description: string, fn: () => void): void {\n    fn();\n}\n\nexport function Then(description: string, fn: () => void): void {\n    fn();\n}",
      "timestamp": "2025-12-10T15:42:57.485Z"
    },
    {
      "role": "user",
      "content": "# Fix Required - Tests Still Failing (Iteration 1)\n\n## Error Output\n```\n\u001b[31mNo test files found, exiting with code 1\n\u001b[39m\n\u001b[2mfilter: \u001b[22m\u001b[33m/tmp/cerebras-test-ts-v2/formatter.test.ts\u001b[39m\n\u001b[2minclude: \u001b[22m\u001b[33m**/*.{test,spec}.?(c|m)[jt]s?(x)\u001b[39m\n\u001b[2mexclude:  \u001b[22m\u001b[33m**/node_modules/**\u001b[2m, \u001b[22m**/.git/**\u001b[39m\n\n\n```\n\n## Instructions\n1. Carefully analyze the error output above\n2. Review your previous implementation in the conversation\n3. Identify what's wrong (logic error, **missing imports**, missing edge case, incorrect behavior)\n4. **CRITICAL: If error says \"X is not defined\" or \"cannot find name X\":**\n   - Check if X exists in the implementation file\n   - If YES: Add import statement to the TEST file (not implementation)\n   - Example: `import { X } from './filename';`\n5. You may need to edit EITHER the implementation file OR the test file (check which has the issue)\n6. Fix ONLY the specific issue\n7. Preserve all working functionality\n\nIMPORTANT: Generate the COMPLETE fixed implementation file content. No markdown code blocks, no explanations, just raw code.",
      "timestamp": "2025-12-10T15:43:00.645Z"
    },
    {
      "role": "assistant",
      "content": "\nexport function formatDate(date: Date): string {\n    if (!(date instanceof Date) || isNaN(date.getTime())) {\n        throw new Error('Invalid date');\n    }\n    \n    const year = date.getFullYear();\n    const month = String(date.getMonth() + 1).padStart(2, '0');\n    const day = String(date.getDate()).padStart(2, '0');\n    \n    return `${year}-${month}-${day}`;\n}\n\nexport function Given(description: string, fn: () => void): void {\n    describe(description, fn);\n}\n\nexport function When(description: string, fn: () => void): void {\n    it(description, fn);\n}\n\nexport function Then(description: string, fn: () => void): void {\n    it(description, fn);\n}",
      "timestamp": "2025-12-10T15:43:00.846Z"
    },
    {
      "role": "user",
      "content": "# Fix Required - Tests Still Failing (Iteration 2)\n\n## Error Output\n```\n\u001b[31mNo test files found, exiting with code 1\n\u001b[39m\n\u001b[2mfilter: \u001b[22m\u001b[33m/tmp/cerebras-test-ts-v2/formatter.test.ts\u001b[39m\n\u001b[2minclude: \u001b[22m\u001b[33m**/*.{test,spec}.?(c|m)[jt]s?(x)\u001b[39m\n\u001b[2mexclude:  \u001b[22m\u001b[33m**/node_modules/**\u001b[2m, \u001b[22m**/.git/**\u001b[39m\n\n\n```\n\n## Instructions\n1. Carefully analyze the error output above\n2. Review your previous implementation in the conversation\n3. Identify what's wrong (logic error, **missing imports**, missing edge case, incorrect behavior)\n4. **CRITICAL: If error says \"X is not defined\" or \"cannot find name X\":**\n   - Check if X exists in the implementation file\n   - If YES: Add import statement to the TEST file (not implementation)\n   - Example: `import { X } from './filename';`\n5. You may need to edit EITHER the implementation file OR the test file (check which has the issue)\n6. Fix ONLY the specific issue\n7. Preserve all working functionality\n\nIMPORTANT: Generate the COMPLETE fixed implementation file content. No markdown code blocks, no explanations, just raw code.",
      "timestamp": "2025-12-10T15:43:04.557Z"
    },
    {
      "role": "assistant",
      "content": "\nexport function formatDate(date: Date): string {\n    if (!(date instanceof Date) || isNaN(date.getTime())) {\n        throw new Error('Invalid date');\n    }\n    \n    const year = date.getFullYear();\n    const month = String(date.getMonth() + 1).padStart(2, '0');\n    const day = String(date.getDate()).padStart(2, '0');\n    \n    return `${year}-${month}-${day}`;\n}\n\nexport function Given(description: string, fn: () => void): void {\n    fn();\n}\n\nexport function When(description: string, fn: () => void): void {\n    fn();\n}\n\nexport function Then(description: string, fn: () => void): void {\n    fn();\n}",
      "timestamp": "2025-12-10T15:43:04.954Z"
    },
    {
      "role": "user",
      "content": "# Fix Required - Tests Still Failing (Iteration 3)\n\n## Error Output\n```\n\u001b[31mNo test files found, exiting with code 1\n\u001b[39m\n\u001b[2mfilter: \u001b[22m\u001b[33m/tmp/cerebras-test-ts-v2/formatter.test.ts\u001b[39m\n\u001b[2minclude: \u001b[22m\u001b[33m**/*.{test,spec}.?(c|m)[jt]s?(x)\u001b[39m\n\u001b[2mexclude:  \u001b[22m\u001b[33m**/node_modules/**\u001b[2m, \u001b[22m**/.git/**\u001b[39m\n\n\n```\n\n## Instructions\n1. Carefully analyze the error output above\n2. Review your previous implementation in the conversation\n3. Identify what's wrong (logic error, **missing imports**, missing edge case, incorrect behavior)\n4. **CRITICAL: If error says \"X is not defined\" or \"cannot find name X\":**\n   - Check if X exists in the implementation file\n   - If YES: Add import statement to the TEST file (not implementation)\n   - Example: `import { X } from './filename';`\n5. You may need to edit EITHER the implementation file OR the test file (check which has the issue)\n6. Fix ONLY the specific issue\n7. Preserve all working functionality\n\nIMPORTANT: Generate the COMPLETE fixed implementation file content. No markdown code blocks, no explanations, just raw code.",
      "timestamp": "2025-12-10T15:43:08.201Z"
    },
    {
      "role": "assistant",
      "content": "\nexport function formatDate(date: Date): string {\n    if (!(date instanceof Date) || isNaN(date.getTime())) {\n        throw new Error('Invalid date');\n    }\n    \n    const year = date.getFullYear();\n    const month = String(date.getMonth() + 1).padStart(2, '0');\n    const day = String(date.getDate()).padStart(2, '0');\n    \n    return `${year}-${month}-${day}`;\n}\n\nexport const Given = (description: string, fn: () => void) => fn();\nexport const When = (description: string, fn: () => void) => fn();\nexport const Then = (description: string, fn: () => void) => fn();",
      "timestamp": "2025-12-10T15:43:08.467Z"
    }
  ]
}