Summary
This is a comprehensive testing guide for Spring Boot 4 that actually tells you which annotation to use when. It's built around the test pyramid and includes decision trees for choosing between @WebMvcTest, @DataJpaTest, @RestClientTest, and friends. The best part is the practical coverage: it shows you MockMvcTester (the new AssertJ-style API), Testcontainers for real database tests, and Instancio for generating test data. It also covers the Spring Boot 4 migration path from deprecated @MockBean to @MockitoBean. The complexity assessment section is refreshingly honest about when to refactor instead of writing 50 test cases for a god method. If you're moving to Spring Boot 4 or just tired of guessing which test slice to use, this gets you unstuck fast.
Install to Claude Code
npx -y skills add marcelorodrigo/agent-skills --skill spring-boot-testing --agent claude-codeInstalls into .claude/skills of the current project.
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Files
SKILL.md
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Featured
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
