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springboot-tdd

Guide test-driven development workflows for Spring Boot projects using JUnit 5, Mockito, and Testcontainers.

Updated Feb 5, 2026
Search Tags:#tdd#spring-boot#testcontainers#mockmvc#junit5#mockito#jacoco
One-click install
npx skills add https://github.com/gugug168/claudecode-tutorial --skill springboot-tdd-gugug168
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: springboot-tdd
Source: https://github.com/gugug168/claudecode-tutorial/tree/main/everything-claude-code-learning/02-Skills/springboot-tdd
Command: npx skills add https://github.com/gugug168/claudecode-tutorial --skill springboot-tdd-gugug168

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Prevents regressions and ensures maintainable, well-tested Spring Boot services by prescribing a repeatable test-driven development workflow for new features, bug fixes, and refactors.

Core Features & Use Cases

  • Unit testing patterns using JUnit 5 and Mockito for fast, isolated verification.
  • Web layer testing with MockMvc for controller contract validation.
  • Integration and persistence testing with SpringBootTest, DataJpaTest, and Testcontainers to mirror production dependencies like Postgres and Redis.
  • Coverage enforcement via JaCoCo and CI configuration to maintain target coverage (80%+).
  • Use case: add a new REST endpoint with a failing unit test, implement the minimal service and controller to pass tests, then verify end-to-end behavior with Testcontainers-backed integration tests.

Quick Start

Write a failing JUnit 5 test for the new endpoint, implement the minimal code to make it pass, add an integration test using Testcontainers, and enforce coverage with JaCoCo in CI.

Frequently Asked Questions about springboot-tdd

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I use test-driven development to add a new REST endpoint in Spring Boot?▼

Spring Boot TDD involves writing a failing JUnit 5 test first, implementing minimal controller and service code to pass it, then verifying end-to-end behavior with Testcontainers-backed integration tests.

What's the best way to test Spring Boot web layer controllers and persistence logic?▼

Use MockMvc for controller contract validation and DataJpaTest with Testcontainers for persistence testing, ensuring your Spring Boot web layer and data access logic mirror production dependencies like Postgres and Redis.

Can I enforce code coverage thresholds in CI for Spring Boot projects using JaCoCo?▼

Yes, you can configure JaCoCo coverage enforcement in your CI pipeline to maintain a target coverage of 80% or higher for your Spring Boot project, preventing regressions and ensuring well-tested code.

Does Spring Boot TDD work with JUnit 5 and Mockito for isolated unit testing?▼

Spring Boot TDD works with JUnit 5 and Mockito to provide fast, isolated unit testing verification, allowing you to mock dependencies while developing new features or fixing bugs.

When do I need Testcontainers versus MockMvc in a Spring Boot testing workflow?▼

Use MockMvc for fast web layer controller contract validation, and switch to Testcontainers for integration and persistence tests when you need to mirror production dependencies like Postgres and Redis.

Why use test-driven development for Spring Boot refactoring and bug fixes?▼

TDD prevents regressions and ensures maintainable Spring Boot services by prescribing a repeatable workflow of writing failing tests before implementing refactors or bug fixes across unit, web, and integration layers.

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