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Fixes #3833

@claude
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claude bot commented Nov 15, 2025

Claude finished @thomhurst's task —— View job


Reviewing PR #3849: TestBuildContext implementation

Review Checklist

  • Read repository guidelines (CLAUDE.md)
  • Analyze TestBuildContext.cs model
  • Review TestContext modifications
  • Examine TestBuilder.cs changes
  • Review test coverage and quality
  • Check for dual-mode compatibility
  • Assess performance implications
  • Evaluate security considerations
  • Provide comprehensive feedback

Code Review Feedback

Overall Assessment: GOOD

This is a solid implementation that addresses issue #3833 by capturing console output during test building phase. The code follows TUnit's patterns and includes comprehensive tests.

🔍 Detailed Analysis

1. Code Quality & Best Practices

TestBuildContext.cs (TUnit.Core/Models/TestBuildContext.cs:1-46)

  • Good: Clean implementation extending the existing Context base class
  • Good: Proper IDisposable implementation with null cleanup
  • Good: Thread-safe AsyncLocal<TestBuildContext?> pattern consistent with other contexts
  • Good: Modern C# syntax (file-scoped namespaces, readonly fields)
  • ⚠️ Minor: Consider adding XML documentation for the SetAsyncLocalContext() method

Context.cs Changes (TUnit.Core/Context.cs:15-22)

  • Good: Properly integrated TestBuildContext into the context hierarchy
  • Good: Maintains existing context priority order
  • Good: No breaking changes to existing API

TestContext Modifications (TUnit.Core/TestContext.cs:158-167)

  • Good: Clean separation of concerns with SetBuildTimeOutput method
  • Good: Immutable design - build-time output is set once and preserved
  • Good: Clear naming and purpose

2. Dual-Mode Compatibility Analysis

⚠️ CRITICAL CONCERN: Missing Source Generator Implementation

Based on TUnit's mandatory Rule 1 (Dual-Mode Implementation), this feature ONLY implements the reflection mode path in TUnit.Engine/Building/TestBuilder.cs:139-141.

Missing Implementation:

  • No source generator changes to capture build-time output during compile-time code generation
  • The generated code likely won't have access to the TestBuildContext during data source construction
  • This creates a behavior difference between source-generated and reflection modes

Required Actions:

  1. Implement TestBuildContext usage in the source generator (TUnit.Core.SourceGenerator)
  2. Ensure generated code wraps data source construction in TestBuildContext scopes
  3. Add tests that verify both modes capture build-time output identically

3. Performance Implications

✅ Positive Aspects:

  • Uses existing Context infrastructure, minimal overhead
  • AsyncLocal<T> is already used throughout TUnit, no new performance penalty
  • Build-time output capture only adds overhead during test building, not execution
  • Proper string handling with existing ConcurrentStringWriter

⚠️ Considerations:

  • TestBuilder.cs:140-141 creates a new TestBuildContext for every metadata build
  • Memory usage increases slightly per test due to stored build-time output strings
  • Consider memory impact for large test suites with verbose data source construction

Performance is acceptable given that test building is not a hot path.

4. Security Considerations

No security concerns identified:

  • No sensitive data exposure
  • Standard console output capture mechanism
  • No reflection or dynamic code beyond existing patterns

5. Test Coverage

✅ Excellent test coverage in TestBuildContextOutputCaptureTests.cs:

  • Constructor output capture ✅
  • Async initializer output capture ✅
  • Error output capture ✅
  • Shared data source behavior ✅
  • Combined build + execution output ✅
  • Output ordering verification ✅

Missing tests:

  • Source-generated mode tests (due to missing implementation)
  • Performance stress tests for large output volumes
  • Concurrent data source construction scenarios

6. Code Architecture

✅ Strong architecture:

  • Follows existing TUnit patterns consistently
  • Clean separation between build-time and execution-time concerns
  • Proper inheritance hierarchy usage
  • Good encapsulation of output capture logic

🚨 Critical Issues

  1. Dual-Mode Implementation Missing: This feature violates TUnit's Rule 1 by only implementing reflection mode
  2. Snapshot Tests Required: Changes to public API likely require snapshot test updates (Rule 2)

⚠️ Recommended Improvements

  1. Implement source generator support for TestBuildContext
  2. Add XML documentation to SetAsyncLocalContext() method
  3. Run snapshot tests and update if needed:
    dotnet test TUnit.PublicAPI
    # Accept changes if appropriate
  4. Consider memory optimization for large test suites
  5. Add tests for source-generated mode once implemented

📋 Pre-Commit Checklist Status

Based on the mandatory checklist from CLAUDE.md:

  • Dual-mode feature: Only reflection mode implemented
  • ⚠️ Public API changes: Snapshot tests may need updates
  • Code style: Follows guidelines
  • Performance: Acceptable for this feature
  • No breaking changes: Backward compatible

🎯 Recommendation

Conditional Approval - This is good quality code that solves the intended problem, but it needs dual-mode implementation to meet TUnit's standards.

Action Items:

  1. Implement TestBuildContext in source generator
  2. Verify snapshot tests don't need updates
  3. Test both execution modes for identical behavior

@claude
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claude bot commented Nov 15, 2025

Claude finished @thomhurst's task —— View job


Code Review: TestBuildContext Implementation ✅

Reviewing PR #3849 for TestBuildContext implementation that captures build-time output.

Review Checklist

  • Read repository guidelines (CLAUDE.md)
  • Analyze TestBuildContext.cs implementation
  • Review TestContext modifications
  • Examine TestBuilder.cs changes
  • Review test coverage and quality
  • Check for dual-mode compatibility
  • Assess performance implications
  • Evaluate security considerations
  • Provide comprehensive feedback

Code Review Feedback

Overall Assessment: GOOD

This is a solid implementation that addresses issue #3833 by capturing console output during test building phase. The code follows TUnit's patterns and includes comprehensive tests.

🔍 Detailed Analysis

1. Code Quality & Best Practices

TestBuildContext.cs (TUnit.Core/Models/TestBuildContext.cs:1-46)

  • Excellent: Clean implementation extending the existing Context base class
  • Good: Proper IDisposable implementation with null cleanup
  • Good: Thread-safe AsyncLocal<TestBuildContext?> pattern consistent with other contexts
  • Good: Modern C# syntax (file-scoped namespaces, readonly fields)
  • Good: Comprehensive XML documentation explaining purpose and lifecycle

Context.cs Changes (TUnit.Core/Context.cs:15-22)

  • Perfect: Properly integrated TestBuildContext into the context hierarchy
  • Good: Maintains existing context priority order (TestContext > TestBuildContext > ...)
  • Good: No breaking changes to existing API

TestContext Modifications (TUnit.Core/TestContext.cs:158-167)

  • Good: Clean separation of concerns with SetBuildTimeOutput method
  • Good: Immutable design - build-time output is set once and preserved
  • Good: Clear naming and purpose

TestContext.Output.cs Changes (TUnit.Core/TestContext.Output.cs:50-91)

  • Excellent: Proper output merging logic combining build-time, base class, and writer output
  • Good: Maintains order (build-time → base → writer) as documented in tests
  • Good: Efficient string handling with minimal allocations

2. Dual-Mode Compatibility Analysis

✅ EXCELLENT: Proper Implementation

After analyzing the codebase, this implementation correctly handles dual-mode compatibility:

  • Reflection Mode: ✅ Implemented in TestBuilder.cs:139-141 and TestBuilder.cs:516-526

    • Creates TestBuildContext during test building
    • Captures output during data source initialization
    • Transfers captured output to all test contexts
  • Source-Generated Mode: ✅ Compatible by design

    • Source generator doesn't handle data source construction - it generates metadata
    • Data source initialization still happens at runtime via the same reflection paths
    • TestBuildContext.Current will work correctly during source-gen test execution

This is actually a smart design - the output capture happens during runtime data source initialization, which is the same for both modes.

3. Implementation Details

TestBuilder.cs Changes (TUnit.Engine/Building/TestBuilder.cs:139-141, 516-526)

  • Perfect: Creates TestBuildContext scope around all test building logic
  • Good: Captures both standard and error output
  • Good: Transfers output to all generated test contexts
  • Good: Proper using statement ensures cleanup

4. Performance Implications

✅ Excellent performance considerations:

  • Uses existing Context infrastructure - no new overhead
  • AsyncLocal<T> already used throughout TUnit
  • Build-time output capture only adds overhead during test building (not hot path)
  • Efficient string handling in output combination logic
  • Memory impact minimal - only stores strings that actually have output

5. Security Considerations

No security concerns identified:

  • No sensitive data exposure
  • Standard console output capture mechanism
  • No additional reflection or dynamic code
  • Follows existing TUnit security patterns

6. Test Coverage

✅ Outstanding test coverage in TestBuildContextOutputCaptureTests.cs:

  • Constructor output capture ✅ (Test_CapturesConstructorOutput_InTestResults)
  • Async initializer output capture ✅ (Test_CapturesAsyncInitializerOutput_InTestResults)
  • Error output capture ✅ (Test_CapturesErrorOutput_InTestResults)
  • Shared data source behavior ✅ (Test_SharedDataSource_*)
  • Combined build + execution output ✅ (Test_BothBuildAndExecutionOutput_AreCombined)
  • Output ordering verification ✅ (build-time before execution-time)
  • Execution-only output still works ✅ (Test_ExecutionOutput_StillCaptured)

Test quality: Tests are comprehensive, well-documented, and verify both positive and edge cases.

7. Code Architecture

✅ Excellent architecture:

  • Follows existing TUnit patterns consistently
  • Clean separation between build-time and execution-time concerns
  • Proper inheritance hierarchy usage (extends Context)
  • Good encapsulation of output capture logic
  • Integrates seamlessly with existing context system

8. Snapshot Tests

✅ Properly handled:

  • Public API snapshots have been updated across all target frameworks
  • TestBuildContext correctly appears in verified snapshot files
  • No breaking changes to existing APIs

🎯 Final Recommendation

✅ APPROVE - This is a high-quality implementation that:

  1. Solves the stated problem effectively
  2. Follows TUnit's architecture and patterns perfectly
  3. Includes comprehensive tests covering all scenarios
  4. Has excellent performance characteristics
  5. Properly handles dual-mode compatibility
  6. Maintains API compatibility
  7. Updates required snapshots correctly

📋 Pre-Commit Checklist Status

All requirements met:

  • ✅ Dual-mode compatibility (handled correctly)
  • ✅ Public API changes documented in snapshots
  • ✅ Code follows style guidelines
  • ✅ Performance considerations addressed
  • ✅ No security concerns
  • ✅ Comprehensive test coverage
  • ✅ No breaking changes

This implementation is ready for merge. Great work addressing issue #3833! 🚀


@claude
Copy link
Contributor

claude bot commented Nov 15, 2025

Claude finished @thomhurst's task —— View job


Code Review: TestBuildContext Implementation ✅

Reviewing PR #3849 for TestBuildContext implementation that captures build-time output.

Review Checklist

  • Read repository guidelines (CLAUDE.md)
  • Analyze TestBuildContext.cs implementation
  • Review TestContext modifications
  • Examine TestBuilder.cs changes
  • Review test coverage and quality
  • Check for dual-mode compatibility
  • Assess performance implications
  • Evaluate security considerations
  • Provide comprehensive feedback

Code Review Feedback

Overall Assessment: GOOD

This is a solid implementation that addresses issue #3833 by capturing console output during test building phase. The code follows TUnit's patterns and includes comprehensive tests.

🔍 Detailed Analysis

1. Code Quality & Best Practices

TestBuildContext.cs (TUnit.Core/Models/TestBuildContext.cs:1-46)

  • Excellent: Clean implementation extending the existing Context base class
  • Good: Proper IDisposable implementation with null cleanup
  • Good: Thread-safe AsyncLocal<TestBuildContext?> pattern consistent with other contexts
  • Good: Modern C# syntax (file-scoped namespaces, readonly fields)
  • Good: Comprehensive XML documentation explaining purpose and lifecycle

Context.cs Changes (TUnit.Core/Context.cs:15-22)

  • Perfect: Properly integrated TestBuildContext into the context hierarchy
  • Good: Maintains existing context priority order (TestContext > TestBuildContext > ...)
  • Good: No breaking changes to existing API

TestContext Modifications (TUnit.Core/TestContext.cs:158-167)

  • Good: Clean separation of concerns with SetBuildTimeOutput method
  • Good: Immutable design - build-time output is set once and preserved
  • Good: Clear naming and purpose

TestContext.Output.cs Changes (TUnit.Core/TestContext.Output.cs:50-91)

  • Excellent: Proper output merging logic combining build-time, base class, and writer output
  • Good: Maintains order (build-time → base → writer) as documented in tests
  • Good: Efficient string handling with minimal allocations

2. Dual-Mode Compatibility Analysis

✅ EXCELLENT: Proper Implementation

After analyzing the codebase, this implementation correctly handles dual-mode compatibility:

  • Reflection Mode: ✅ Implemented in TestBuilder.cs:139-141 and TestBuilder.cs:516-526

    • Creates TestBuildContext during test building
    • Captures output during data source initialization
    • Transfers captured output to all test contexts
  • Source-Generated Mode: ✅ Compatible by design

    • Source generator doesn't handle data source construction - it generates metadata
    • Data source initialization still happens at runtime via the same reflection paths
    • TestBuildContext.Current will work correctly during source-gen test execution

This is actually a smart design - the output capture happens during runtime data source initialization, which is the same for both modes.

3. Implementation Details

TestBuilder.cs Changes (TUnit.Engine/Building/TestBuilder.cs:139-141, 516-526)

  • Perfect: Creates TestBuildContext scope around all test building logic
  • Good: Captures both standard and error output
  • Good: Transfers output to all generated test contexts
  • Good: Proper using statement ensures cleanup

4. Performance Implications

✅ Excellent performance considerations:

  • Uses existing Context infrastructure - no new overhead
  • AsyncLocal<T> already used throughout TUnit
  • Build-time output capture only adds overhead during test building (not hot path)
  • Efficient string handling in output combination logic
  • Memory impact minimal - only stores strings that actually have output

5. Security Considerations

No security concerns identified:

  • No sensitive data exposure
  • Standard console output capture mechanism
  • No additional reflection or dynamic code
  • Follows existing TUnit security patterns

6. Test Coverage

✅ Outstanding test coverage in TestBuildContextOutputCaptureTests.cs:

  • Constructor output capture ✅ (Test_CapturesConstructorOutput_InTestResults)
  • Async initializer output capture ✅ (Test_CapturesAsyncInitializerOutput_InTestResults)
  • Error output capture ✅ (Test_CapturesErrorOutput_InTestResults)
  • Shared data source behavior ✅ (Test_SharedDataSource_*)
  • Combined build + execution output ✅ (Test_BothBuildAndExecutionOutput_AreCombined)
  • Output ordering verification ✅ (build-time before execution-time)
  • Execution-only output still works ✅ (Test_ExecutionOutput_StillCaptured)

Test quality: Tests are comprehensive, well-documented, and verify both positive and edge cases.

7. Code Architecture

✅ Excellent architecture:

  • Follows existing TUnit patterns consistently
  • Clean separation between build-time and execution-time concerns
  • Proper inheritance hierarchy usage (extends Context)
  • Good encapsulation of output capture logic
  • Integrates seamlessly with existing context system

8. Snapshot Tests

✅ Properly handled:

  • Public API snapshots have been updated across all target frameworks
  • TestBuildContext correctly appears in verified snapshot files
  • No breaking changes to existing APIs

🎯 Final Recommendation

✅ APPROVE - This is a high-quality implementation that:

  1. Solves the stated problem effectively
  2. Follows TUnit's architecture and patterns perfectly
  3. Includes comprehensive tests covering all scenarios
  4. Has excellent performance characteristics
  5. Properly handles dual-mode compatibility
  6. Maintains API compatibility
  7. Updates required snapshots correctly

📋 Pre-Commit Checklist Status

All requirements met:

  • ✅ Dual-mode compatibility (handled correctly)
  • ✅ Public API changes documented in snapshots
  • ✅ Code follows style guidelines
  • ✅ Performance considerations addressed
  • ✅ No security concerns
  • ✅ Comprehensive test coverage
  • ✅ No breaking changes

This implementation is ready for merge. Great work addressing issue #3833! 🚀


@claude
Copy link
Contributor

claude bot commented Nov 15, 2025

Claude finished @thomhurst's task —— View job


Code Review: TestBuildContext Implementation ✅

Reviewing PR #3849 for TestBuildContext implementation that captures build-time output.

Review Checklist

  • Read repository guidelines (CLAUDE.md)
  • Analyze TestBuildContext.cs implementation
  • Review TestContext modifications
  • Examine TestBuilder.cs changes
  • Review test coverage and quality
  • Check for dual-mode compatibility
  • Assess performance implications
  • Evaluate security considerations
  • Provide comprehensive feedback

Code Review Feedback

Overall Assessment: GOOD

This is a solid implementation that addresses issue #3833 by capturing console output during test building phase. The code follows TUnit's patterns and includes comprehensive tests.

🔍 Detailed Analysis

1. Code Quality & Best Practices

TestBuildContext.cs (TUnit.Core/Models/TestBuildContext.cs:1-46)

  • Excellent: Clean implementation extending the existing Context base class
  • Good: Proper IDisposable implementation with null cleanup
  • Good: Thread-safe AsyncLocal<TestBuildContext?> pattern consistent with other contexts
  • Good: Modern C# syntax (file-scoped namespaces, readonly fields)
  • Good: Comprehensive XML documentation explaining purpose and lifecycle

Context.cs Changes (TUnit.Core/Context.cs:15-22)

  • Perfect: Properly integrated TestBuildContext into the context hierarchy
  • Good: Maintains existing context priority order (TestContext > TestBuildContext > ...)
  • Good: No breaking changes to existing API

TestContext Modifications (TUnit.Core/TestContext.cs:158-167)

  • Good: Clean separation of concerns with SetBuildTimeOutput method
  • Good: Immutable design - build-time output is set once and preserved
  • Good: Clear naming and purpose

TestContext.Output.cs Changes (TUnit.Core/TestContext.Output.cs:50-91)

  • Excellent: Proper output merging logic combining build-time, base class, and writer output
  • Good: Maintains order (build-time → base → writer) as documented in tests
  • Good: Efficient string handling with minimal allocations

2. Dual-Mode Compatibility Analysis

✅ EXCELLENT: Proper Implementation

After analyzing the codebase, this implementation correctly handles dual-mode compatibility:

  • Reflection Mode: ✅ Implemented in TestBuilder.cs:139-141 and TestBuilder.cs:516-526

    • Creates TestBuildContext during test building
    • Captures output during data source initialization
    • Transfers captured output to all test contexts
  • Source-Generated Mode: ✅ Compatible by design

    • Source generator doesn't handle data source construction - it generates metadata
    • Data source initialization still happens at runtime via the same reflection paths
    • TestBuildContext.Current will work correctly during source-gen test execution

This is actually a smart design - the output capture happens during runtime data source initialization, which is the same for both modes.

3. Implementation Details

TestBuilder.cs Changes (TUnit.Engine/Building/TestBuilder.cs:139-141, 516-526)

  • Perfect: Creates TestBuildContext scope around all test building logic
  • Good: Captures both standard and error output
  • Good: Transfers output to all generated test contexts
  • Good: Proper using statement ensures cleanup

4. Performance Implications

✅ Excellent performance considerations:

  • Uses existing Context infrastructure - no new overhead
  • AsyncLocal<T> already used throughout TUnit
  • Build-time output capture only adds overhead during test building (not hot path)
  • Efficient string handling in output combination logic
  • Memory impact minimal - only stores strings that actually have output

5. Security Considerations

No security concerns identified:

  • No sensitive data exposure
  • Standard console output capture mechanism
  • No additional reflection or dynamic code
  • Follows existing TUnit security patterns

6. Test Coverage

✅ Outstanding test coverage in TestBuildContextOutputCaptureTests.cs:

  • Constructor output capture ✅ (Test_CapturesConstructorOutput_InTestResults)
  • Async initializer output capture ✅ (Test_CapturesAsyncInitializerOutput_InTestResults)
  • Error output capture ✅ (Test_CapturesErrorOutput_InTestResults)
  • Shared data source behavior ✅ (Test_SharedDataSource_*)
  • Combined build + execution output ✅ (Test_BothBuildAndExecutionOutput_AreCombined)
  • Output ordering verification ✅ (build-time before execution-time)
  • Execution-only output still works ✅ (Test_ExecutionOutput_StillCaptured)

Test quality: Tests are comprehensive, well-documented, and verify both positive and edge cases.

7. Code Architecture

✅ Excellent architecture:

  • Follows existing TUnit patterns consistently
  • Clean separation between build-time and execution-time concerns
  • Proper inheritance hierarchy usage (extends Context)
  • Good encapsulation of output capture logic
  • Integrates seamlessly with existing context system

8. Snapshot Tests

✅ Properly handled:

  • Public API snapshots have been updated across all target frameworks
  • TestBuildContext correctly appears in verified snapshot files
  • No breaking changes to existing APIs

🎯 Final Recommendation

✅ APPROVE - This is a high-quality implementation that:

  1. Solves the stated problem effectively
  2. Follows TUnit's architecture and patterns perfectly
  3. Includes comprehensive tests covering all scenarios
  4. Has excellent performance characteristics
  5. Properly handles dual-mode compatibility
  6. Maintains API compatibility
  7. Updates required snapshots correctly

📋 Pre-Commit Checklist Status

All requirements met:

  • ✅ Dual-mode compatibility (handled correctly)
  • ✅ Public API changes documented in snapshots
  • ✅ Code follows style guidelines
  • ✅ Performance considerations addressed
  • ✅ No security concerns
  • ✅ Comprehensive test coverage
  • ✅ No breaking changes

This implementation is ready for merge. Great work addressing issue #3833! 🚀


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Successfully merging this pull request may close these issues.

Console output disappears from test data class constructors and IAsyncInitializer

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