Testing .NET Web APIs from A to Z
summary
Concrete recipe and results: a minimal .NET Todo API is built and tested end to end against a real SQL Server instance, tests run sequentially with the DB reset before each test, time is controlled with a manual TimeProvider so timestamps are deterministic, and an Alba host (WebApplicationFactory) plus Verify and a JSON diff library enable semantic JSON comparison and snapshot testing. Testcontainers and Respawn appear as options for external deps, and the demo tests run fast and catch contract and behavioral regressions.
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chapters (10)
- 0:00Introduction
- 1:47Valuable API tests
- 8:04Four pillars of tests
- 10:56API testing toolbox
- 17:17Demo solution
- 23:35Contract testing with snapshots
- 27:26Verifying API behavior
- 34:31Implementation vs public API
- 38:04Controlling time in tests
- 40:09Summary
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