Erlang and OTP in Action teaches you the concepts of concurrent programming and the use of @SpringBootTest, MockMvcTester, SpringExtension, and the rest of the Spring Boot testing toolbox are incredibly powerful weapons—once you learn how to wield them. Testing Spring Boot Applications introduces the testing concepts, techniques, and tools to deliver quality Spring Boot applications every time.
Daniel Garnier-Moiroux
Testing Spring Boot Applications isn’t a tour of annotations. It’s a guide to understanding how your test suite behaves so you can make deliberate choices instead of trial-and-error fixes.
Here’s what stood out while reading it:
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A clear mental model of how Spring Boot testing works (context loading, slices, configuration, the whole stack)
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Practical ways to keep tests fast without cutting corners
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How to structure tests so they stay predictable as your app and dependencies evolve
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Coverage that goes beyond unit tests—API-level testing, browser-level testing, and configuration validation all get proper attention
The book builds around a single example application that grows in complexity as you go. You’re not jumping between disconnected snippets—you see how decisions play out over time, which is where most testing advice usually falls short.
If you’ve been relying on @SpringBootTest for everything or copying test setups between projects without fully trusting them, this book will help you clean that up.
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