Learn how to fix error: testengine with id 'junit-vintage' failed to discover tests.

Question

I get an error

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.22.2:test (default-test) on project XXX: There are test failures.
 [ERROR]
 [ERROR] Please refer to D:\Projets\workspace\XXX	arget\surefire-reports for the individual test results.
 [ERROR] Please refer to dump files (if any exist) [date].dump, [date]-jvmRun[N].dump and [date].dumpstream.
 [ERROR] There was an error in the forked process
 [ERROR] TestEngine with ID 'junit-vintage' failed to discover tests
 [ERROR] org.apache.maven.surefire.booter.SurefireBooterForkException: There was an error in the forked process
 [ERROR] TestEngine with ID 'junit-vintage' failed to discover tests
 [ERROR] at org.apache.maven.plugin.surefire.booterclient.ForkStarter.fork(ForkStarter.java:656)

when trying to use Spring Boot 2.2 for my unit tests. How to fix the testengine with id 'junit-vintage' failed to discover tests error? Please give me some advice.

lyytutoria · Accepted Answer

The cause: The reason of the error ''testengine with id ‘junit-vintage’ failed to discover tests'' is that JUnit 4 is excluded or not included in the project when it relies on spring-boot-starter-test. By default, the spring-boot-starter-test has a dependency on the junit-vintage-engine, so testengine with id ‘junit-vintage’ can not explore tests. Solution: The problem is solved by explicitly including the following dependencies while upgrading junit-vintage-engine:


org.junit.vintage
junit-vintage-engine
5.7.0

Another way is excluding the vintage which has worked as the following:

configurations {
all {
exclude(group = "junit", module = "junit")
exclude(group = "org.junit.vintage", module = "junit-vintage-engine")
}
}

The above suggestions aree the best solution for solving ''testengine with id ‘junit-vintage’ failed to discover tests'' error. I hope they are helpful for you. Good lucks!

Maël Chauvet · Answer

The error was discovered by me. Dependency on spring-boot-starter-test creates a dependency upon junit-vintage-engine. This dependency must be removed:


 org.springframework.boot
 spring-boot-starter-test
 test
 
 
 org.junit.vintage
 junit-vintage-engine

Rio Murphy · Answer

The Maven dependency analysis was used to fix the error. I searched for "junit" using the maven dependency analyzer . The red bar was a 1st-party dependency. It was bringing into json_simple, which was bringing about a 4.10 Junit dependency. It was easy to remove the 4.10 Junit by right-clicking + Exclude.

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Learn how to fix error: testengine with id ‘junit-vintage’ failed to discover tests.