Home/ Questions/Learn how to fix error: testengine with id 'junit-vintage' failed to discover tests.
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Mary Lee
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Asked: 2022-05-18T20:06:07+00:00 In:

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

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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\target\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.

failed to discover tests
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2 Answers

  1. Best Answer
    Expert

    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:

    <dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>5.7.0</version>
</dependency>

    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!

    • 0

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

    <dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-test</artifactId>
 <scope>test</scope>
 <exclusions>
 <exclusion>
 <groupId>org.junit.vintage</groupId>
 <artifactId>junit-vintage-engine</artifactId>
 </exclusion>
 </exclusions>
</dependency>
    • 5

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