feat: Add sample data validation testing infrastructure (Sprint 1) #31
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Implements Phase 1 of the comprehensive testing strategy to validate sample data consistency across all output formats and diff modes. Changes: - Create RoslynDiff.TestUtilities shared library project - TestResult model with Pass/Fail factory methods - SampleDataSourceAttribute for test case discovery - LineRange record for representing line number ranges - LineRangeComparer for overlap/duplicate detection - LineNumberValidator for comprehensive validation - Create RoslynDiff.TestUtilities.Tests project - 93 comprehensive unit tests (all passing) - LineRangeComparerTests (41 tests) - LineNumberValidatorTests (45 tests) - UsageExamplesTests (7 integration examples) - 3:1 test-to-code ratio - Setup test infrastructure - SampleValidation/ folder in Integration.Tests - TempTestCases/ for ad-hoc testing (.gitignored) - Project references and dependencies configured - Add comprehensive documentation - TestUtilities README with usage examples - XML documentation for all public APIs - Integration examples with RoslynDiff.Core models Test Results: 93/93 passed (100% pass rate) Build Status: All 9 projects compile successfully Ready for Sprint 2: Format parsers and validators Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Summary
Implements Sprint 1 of the comprehensive testing strategy to validate sample data consistency across all output formats (JSON, HTML, Text, Git-style) and diff modes (Roslyn semantic, Line-by-line).
Related: Testing Strategy Document in
docs/testing-strategy-sample-validation.mdChanges
New Projects Created
RoslynDiff.TestUtilities - Shared test utility library
TestResultmodel with Pass/Fail factory methodsSampleDataSourceAttributefor test case discoveryLineRangerecord for line number rangesLineRangeComparerfor overlap/duplicate detectionLineNumberValidatorfor comprehensive validationRoslynDiff.TestUtilities.Tests - Unit tests for utilities
Test Infrastructure
SampleValidation/folder in Integration.Tests (ready for Sprint 2)TempTestCases/for ad-hoc testing (.gitignored)Documentation
Test Results
All existing tests continue to pass:
Build Status
✅ All 9 projects compile successfully (0 warnings, 0 errors)
Next Steps
Sprint 1 provides the foundation for Sprint 2:
Files Changed
New Files:
tests/RoslynDiff.TestUtilities/(6 files)tests/RoslynDiff.TestUtilities.Tests/(4 files)tests/RoslynDiff.Integration.Tests/SampleValidation/README.mdtests/RoslynDiff.Integration.Tests/TempTestCases/.gitkeepModified Files:
.gitignore- Added TempTestCases ignore rulesroslyn-diff.sln- Added TestUtilities projectsRoslynDiff.Integration.Tests.csproj- Added TestUtilities reference🤖 Generated with Claude Code