PR Review MCP Server

"""Tests for data structures and edge cases.""" class TestDataStructures: """Test data structure handling and edge cases.""" def test_thread_data_structure(self): """Test review thread data structure.""" # This represents the expected structure from GitHub GraphQL API thread = { "id": "PRRT_kwDOABC123", "isResolved": False, "path": "src/main.py", "line": 42, "startLine": 40, "diffSide": "RIGHT", "comments": { "nodes": [ { "id": "PRRC_kwDOABC456", "author": {"login": "reviewer1"}, "body": "Please add type hints", "createdAt": "2025-12-10T12:00:00Z", }, { "id": "PRRC_kwDOABC789", "author": {"login": "contributor"}, "body": "Will do!", "createdAt": "2025-12-10T12:30:00Z", }, ] }, } # Validate structure assert "id" in thread assert "isResolved" in thread assert isinstance(thread["isResolved"], bool) assert "path" in thread assert "comments" in thread assert "nodes" in thread["comments"] assert len(thread["comments"]["nodes"]) == 2 # Validate comment structure comment = thread["comments"]["nodes"][0] assert "id" in comment assert "author" in comment assert "login" in comment["author"] assert "body" in comment assert "createdAt" in comment def test_thread_without_comments(self): """Test thread with no comments (edge case).""" thread = { "id": "PRRT_123", "isResolved": False, "path": "test.py", "line": 10, "startLine": None, "diffSide": "RIGHT", "comments": {"nodes": []}, } # Should be able to handle empty comments comments = thread.get("comments", {}).get("nodes", []) assert comments == [] # First comment should be empty dict when no comments exist first_comment = comments[0] if comments else {} assert first_comment == {} def test_thread_multiline_comment(self): """Test thread with multi-line comment range.""" thread = { "id": "PRRT_123", "isResolved": False, "path": "src/complex.py", "line": 100, "startLine": 95, # Multi-line comment from line 95 to 100 "diffSide": "RIGHT", "comments": { "nodes": [ { "id": "PRRC_1", "author": {"login": "reviewer"}, "body": "This entire block needs refactoring", "createdAt": "2025-12-10T10:00:00Z", } ] }, } # Validate multi-line range assert thread["line"] == 100 assert thread["startLine"] == 95 assert thread["line"] > thread["startLine"] def test_resolved_thread(self): """Test resolved thread structure.""" thread = { "id": "PRRT_123", "isResolved": True, "path": "src/fixed.py", "line": 50, "startLine": None, "diffSide": "RIGHT", "comments": { "nodes": [ { "id": "PRRC_1", "author": {"login": "reviewer"}, "body": "Fix this bug", "createdAt": "2025-12-09T10:00:00Z", }, { "id": "PRRC_2", "author": {"login": "contributor"}, "body": "Fixed!", "createdAt": "2025-12-10T09:00:00Z", }, ] }, } assert thread["isResolved"] is True assert len(thread["comments"]["nodes"]) == 2 def test_comment_with_markdown(self): """Test comment body with Markdown.""" comment = { "id": "PRRC_1", "author": {"login": "reviewer"}, "body": "Please fix:\n\n```python\ndef foo():\n pass\n```\n\nThanks!", "createdAt": "2025-12-10T10:00:00Z", } # Should preserve Markdown formatting assert "```python" in comment["body"] assert "\n" in comment["body"] def test_left_side_comment(self): """Test comment on the LEFT side of diff (old file).""" thread = { "id": "PRRT_123", "isResolved": False, "path": "src/old.py", "line": 30, "startLine": None, "diffSide": "LEFT", # Comment on old version "comments": { "nodes": [ { "id": "PRRC_1", "author": {"login": "reviewer"}, "body": "Why was this removed?", "createdAt": "2025-12-10T11:00:00Z", } ] }, } assert thread["diffSide"] == "LEFT" def test_pr_id_structure(self): """Test pull request ID format.""" # PR IDs typically start with PR_ or other prefixes pr_id = "PR_kwDOABCDEF" assert isinstance(pr_id, str) assert len(pr_id) > 0 def test_thread_id_structure(self): """Test review thread ID format.""" # Thread IDs typically start with PRRT_ thread_id = "PRRT_kwDOABCDEF" assert isinstance(thread_id, str) assert len(thread_id) > 0 # Note: Actual format may vary, but it should be a non-empty string def test_comment_id_structure(self): """Test comment ID format.""" # Comment IDs typically start with PRRC_ comment_id = "PRRC_kwDOABCDEF" assert isinstance(comment_id, str) assert len(comment_id) > 0 def test_datetime_format(self): """Test datetime string format from GitHub.""" # GitHub returns ISO 8601 format created_at = "2025-12-10T12:34:56Z" assert "T" in created_at assert created_at.endswith("Z") # Basic validation that it looks like a timestamp parts = created_at.split("T") assert len(parts) == 2 assert len(parts[0]) == 10 # YYYY-MM-DD def test_api_response_with_null_values(self): """Test handling of null values in API response.""" thread = { "id": "PRRT_123", "isResolved": False, "path": "test.py", "line": 10, "startLine": None, # Can be null for single-line comments "diffSide": "RIGHT", "comments": { "nodes": [ { "id": "PRRC_1", "author": {"login": "reviewer"}, "body": "Comment", "createdAt": "2025-12-10T10:00:00Z", } ] }, } # Should handle None values gracefully assert thread["startLine"] is None def test_deleted_file_comment(self): """Test comment on a deleted file.""" thread = { "id": "PRRT_123", "isResolved": False, "path": "deleted_file.py", "line": 10, "startLine": None, "diffSide": "LEFT", # Comment on deleted content "comments": { "nodes": [ { "id": "PRRC_1", "author": {"login": "reviewer"}, "body": "Was this needed?", "createdAt": "2025-12-10T10:00:00Z", } ] }, } # Should be able to reference deleted files assert thread["path"] == "deleted_file.py" assert thread["diffSide"] == "LEFT" def test_outdated_comment(self): """Test outdated comment (after code changes).""" # Note: The API structure doesn't explicitly mark outdated comments # but they're still valid threads that can be resolved thread = { "id": "PRRT_123", "isResolved": False, # Can still be unresolved even if outdated "path": "src/changed.py", "line": 50, "startLine": None, "diffSide": "RIGHT", "comments": { "nodes": [ { "id": "PRRC_1", "author": {"login": "reviewer"}, "body": "This needs fixing", "createdAt": "2025-12-09T10:00:00Z", } ] }, } # Outdated comments are still valid review threads assert "id" in thread assert "isResolved" in thread