thomhurst/TUnit
Apr 2026 – Apr 2026
1 Month active
Languages Used
C#
Technical Skills
C#Code GenerationMocking FrameworksUnit Testingbackend developmentdependency injection
John Verheij
PROFILE
John Verheij
Worked on the thomhurst/TUnit repository to enhance reliability and maintainability in C# backend development. Developed features that propagate the [Obsolete] attribute in mock generation, including support for named arguments, ensuring compatibility with legacy APIs and reducing integration warnings. Improved resource management by updating FlowSuppressingHostedService to forward disposal calls via IDisposable and IAsyncDisposable, backed by comprehensive regression tests. Increased test stability by introducing a default CancellationToken arbitrary for FsCheck, preventing flaky test runs. Standardized code generation outputs by adding auto-generated headers, improving traceability. Demonstrated expertise in C#, code generation, dependency injection, and property-based testing throughout the work.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
4Total
Bugs
2
Commits
4
Features
2
Lines of code
4,858
Activity Months1
Your Network
45 peopleWork History
April 2026
4 Commits • 2 Features
Apr 1, 2026April 2026 monthly summary for thomhurst/TUnit: Focused on reliability, compatibility, and maintainability. Implemented key features and fixes that deliver tangible business value, improve API evolution safety, and stabilize the test and code-generation ecosystem. Key outcomes: - Obsolete attribute propagation in mock generation: mocks now preserve [Obsolete] attributes, including named arguments, reducing integration warnings and preserving compatibility with legacy APIs. - Disposable correctness for hosted services: FlowSuppressingHostedService now forwards disposal to inner services via IDisposable and IAsyncDisposable, preventing resource leaks; backed by comprehensive regression tests. - FsCheck test reliability enhancements: introduced a default CancellationToken arbitrary to avoid pre-cancelled tokens and added regression tests to ensure robust timeout cooperation. - Generated code consistency: auto-generated header added to MethodAssertionGenerator and extended to AssertionExtensionGenerator and AssertionMethodGenerator for better traceability and consistency across generated files. Overall impact and accomplishments: - Reduced runtime warnings and friction when using mocks with obsolete APIs. - Eliminated a class of resource-leak risks in hosted service lifecycles. - Increased test stability and reliability, decreasing flaky test runs. - Improved maintainability and consistency of generated assertion code, easing onboarding and future changes. Technologies/skills demonstrated: - C#/.NET, code generation, unit/integration testing, FsCheck, dependency injection lifecycles, async disposal patterns, and maintainability improvements.
4 Commits • 2 Features
Apr 1, 2026April 2026 monthly summary for thomhurst/TUnit: Focused on reliability, compatibility, and maintainability. Implemented key features and fixes that deliver tangible business value, improve API evolution safety, and stabilize the test and code-generation ecosystem. Key outcomes: - Obsolete attribute propagation in mock generation: mocks now preserve [Obsolete] attributes, including named arguments, reducing integration warnings and preserving compatibility with legacy APIs. - Disposable correctness for hosted services: FlowSuppressingHostedService now forwards disposal to inner services via IDisposable and IAsyncDisposable, preventing resource leaks; backed by comprehensive regression tests. - FsCheck test reliability enhancements: introduced a default CancellationToken arbitrary to avoid pre-cancelled tokens and added regression tests to ensure robust timeout cooperation. - Generated code consistency: auto-generated header added to MethodAssertionGenerator and extended to AssertionExtensionGenerator and AssertionMethodGenerator for better traceability and consistency across generated files. Overall impact and accomplishments: - Reduced runtime warnings and friction when using mocks with obsolete APIs. - Eliminated a class of resource-leak risks in hosted service lifecycles. - Increased test stability and reliability, decreasing flaky test runs. - Improved maintainability and consistency of generated assertion code, easing onboarding and future changes. Technologies/skills demonstrated: - C#/.NET, code generation, unit/integration testing, FsCheck, dependency injection lifecycles, async disposal patterns, and maintainability improvements.
April 2026
Activity
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Quality Metrics
Correctness100.0%
Maintainability85.0%
Architecture90.0%
Performance85.0%
AI Usage25.0%
Skills & Technologies
Programming Languages
C#
Technical Skills
C#Code GenerationMocking FrameworksUnit Testingbackend developmentdependency injectionproperty-based testingtest automationunit testing
Repositories Contributed To
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