tdd

Test-driven development (TDD) in .NET means writing tests before implementation to ensure correct design, clearer requirements, and safer refactors. It validates domain logic and algorithms through structured red-green-refactor cycles.

Scaffold unit tests for domain logic and invariants using xUnit and FluentAssertions. This approach guides you through writing tests for guard clauses and domain rules before writing the actual implementation code.

The best way to set up integration testing for HTTP endpoints in .NET is using WebApplicationFactory and test doubles. This validates your API endpoints by running tests against the actual web host in memory.

Yes, you can use TestContainers and EF Core for database testing in .NET. This combination validates your repository patterns by spinning up real database instances in containers, ensuring accurate integration testing.

Apply the red-green-refactor loop to fix bugs by first writing a failing test that reproduces the bug, then implementing the minimal code to pass the test, and finally refactoring the design safely.

Yes, this TDD workflow supports mocking dependencies with Moq. It integrates Moq alongside xUnit and FluentAssertions to isolate units of work and validate interactions during the test-driven design process.