Spring Boot testing: Zero to Hero
summary
Starts from the problem that @SpringBootTest is easy to overuse — tests balloon to 12 minutes and fail randomly — then shows concrete fixes: replace blanket @SpringBootTest with MockMvcTester for API checks, use HtmlUnit-backed WebClient for lightweight browser tests, run a real server with webEnvironment=RANDOM_PORT for session/servlet features, apply Spring Boot test slices to shrink contexts, and integrate Testcontainers for real databases; demos include AssertJ assertions, CSRF-enabled security tests, and context caching to cut repeated startup costs.
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chapters (11)
- 0:00Introduction and setup
- 1:07Disclaimers and talk overview
- 3:15Web testing with Mock MVC
- 15:49Browser testing with WebClient
- 24:21Real web server vs mock stack
- 35:45Test context caching
- 48:04Toolbox: AssertJ and Output Capture
- 1:00:11Test slices for focused testing
- 1:12:11Test containers for databases
- 1:30:57Security testing with Spring Security
- 1:47:16Wrap-up and resources
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