test: add unit tests and fixtures

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/fixtures/chatgpt_conversation.json

@@ -0,0 +1,57 @@
+{
+  "id": "chatgpt-conv-001",
+  "title": "Python Async Tutorial",
+  "create_time": 1704067200.0,
+  "update_time": 1704153600.0,
+  "project_title": "Learning Python",
+  "mapping": {
+    "node-root": {
+      "id": "node-root",
+      "parent": null,
+      "children": ["node-1"],
+      "message": null
+    },
+    "node-1": {
+      "id": "node-1",
+      "parent": "node-root",
+      "children": ["node-2"],
+      "message": {
+        "id": "node-1",
+        "author": {"role": "user"},
+        "create_time": 1704067200.0,
+        "content": {
+          "content_type": "text",
+          "parts": ["How does async/await work in Python?"]
+        }
+      }
+    },
+    "node-2": {
+      "id": "node-2",
+      "parent": "node-1",
+      "children": ["node-3"],
+      "message": {
+        "id": "node-2",
+        "author": {"role": "assistant"},
+        "create_time": 1704067210.0,
+        "content": {
+          "content_type": "text",
+          "parts": ["Async/await in Python allows you to write concurrent code using coroutines.\n\n```python\nimport asyncio\n\nasync def main():\n    await asyncio.sleep(1)\n    print('Done!')\n\nasyncio.run(main())\n```"]
+        }
+      }
+    },
+    "node-3": {
+      "id": "node-3",
+      "parent": "node-2",
+      "children": [],
+      "message": {
+        "id": "node-3",
+        "author": {"role": "user"},
+        "create_time": 1704067300.0,
+        "content": {
+          "content_type": "image_asset_pointer",
+          "parts": [{"content_type": "image_asset_pointer", "asset_pointer": "file://some-image"}]
+        }
+      }
+    }
+  }
+}

tests/fixtures/chatgpt_no_project.json

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+{
+  "id": "chatgpt-conv-002",
+  "title": "Quick Question",
+  "create_time": 1706745600.0,
+  "update_time": 1706745900.0,
+  "project_title": null,
+  "mapping": {
+    "node-root": {
+      "id": "node-root",
+      "parent": null,
+      "children": ["msg-1"],
+      "message": null
+    },
+    "msg-1": {
+      "id": "msg-1",
+      "parent": "node-root",
+      "children": ["msg-2"],
+      "message": {
+        "id": "msg-1",
+        "author": {"role": "user"},
+        "create_time": 1706745600.0,
+        "content": {
+          "content_type": "text",
+          "parts": ["What is the capital of France?"]
+        }
+      }
+    },
+    "msg-2": {
+      "id": "msg-2",
+      "parent": "msg-1",
+      "children": [],
+      "message": {
+        "id": "msg-2",
+        "author": {"role": "assistant"},
+        "create_time": 1706745610.0,
+        "content": {
+          "content_type": "text",
+          "parts": ["The capital of France is Paris."]
+        }
+      }
+    }
+  }
+}

tests/fixtures/claude_conversation.json

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+{
+  "uuid": "claude-conv-001",
+  "name": "StartOS Service Packaging",
+  "created_at": "2024-06-10T14:32:00.000Z",
+  "updated_at": "2024-06-10T15:00:00.000Z",
+  "project": {
+    "uuid": "proj-001",
+    "name": "StarTOS Packaging"
+  },
+  "chat_messages": [
+    {
+      "uuid": "msg-001",
+      "sender": "human",
+      "created_at": "2024-06-10T14:32:00.000Z",
+      "content": [
+        {"type": "text", "text": "How do I create a manifest.ts for a StartOS service?"}
+      ]
+    },
+    {
+      "uuid": "msg-002",
+      "sender": "assistant",
+      "created_at": "2024-06-10T14:32:10.000Z",
+      "content": [
+        {"type": "text", "text": "To create a manifest.ts for a StartOS service, you need to define the package metadata:\n\n```typescript\nimport { sdk } from './sdk'\n\nexport const manifest = sdk.Manifest.of({\n  id: 'my-service',\n  title: 'My Service',\n  version: '1.0.0',\n})\n```"},
+        {"type": "tool_use", "id": "tool-001", "name": "search", "input": {"query": "startOS docs"}}
+      ]
+    },
+    {
+      "uuid": "msg-003",
+      "sender": "human",
+      "created_at": "2024-06-10T14:45:00.000Z",
+      "content": "Thank you, that helped!"
+    }
+  ]
+}

tests/fixtures/claude_no_project.json

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+{
+  "uuid": "claude-conv-002",
+  "name": "Explain Docker",
+  "created_at": "2024-08-01T09:00:00.000Z",
+  "updated_at": "2024-08-01T09:05:00.000Z",
+  "project": null,
+  "chat_messages": [
+    {
+      "uuid": "msg-004",
+      "sender": "human",
+      "created_at": "2024-08-01T09:00:00.000Z",
+      "content": "Can you explain Docker containers briefly?"
+    },
+    {
+      "uuid": "msg-005",
+      "sender": "assistant",
+      "created_at": "2024-08-01T09:00:10.000Z",
+      "content": [
+        {"type": "text", "text": "Docker containers are lightweight, isolated environments that package an application and its dependencies together, ensuring consistent behaviour across different systems."}
+      ]
+    }
+  ]
+}