This version is still in development and is not considered stable yet. For the latest stable version, please use Spring Boot 3.5.6!

Testing

Spring Boot provides a number of utilities and annotations to help when testing your application.

Test support is provided by two general-purpose modules – spring-boot-test contains core items and spring-boot-test-autoconfigure supports auto-configuration for tests – and several focused -test modules that provide testing support for a particular feature.

Most developers use the spring-boot-starter-test starter, which imports both general-purpose Spring Boot test modules as well as JUnit Jupiter, AssertJ, Hamcrest, and a number of other useful libraries, and the focused -test modules that are applicable to their particular application.

If you have tests that use JUnit 4, JUnit 6’s vintage engine can be used to run them. To use the vintage engine, add a dependency on junit-vintage-engine, as shown in the following example:

<dependency>
	<groupId>org.junit.vintage</groupId>
	<artifactId>junit-vintage-engine</artifactId>
	<scope>test</scope>
	<exclusions>
		<exclusion>
			<groupId>org.hamcrest</groupId>
			<artifactId>hamcrest-core</artifactId>
		</exclusion>
	</exclusions>
</dependency>

hamcrest-core is excluded in favor of org.hamcrest:hamcrest that is part of spring-boot-starter-test.