Today my IntelliJ did not want to start otherwise correctly running JUnit Tests. Maven went well, but IntelliJ insisted that there was no test.
I add these dependencies and then, it worked:
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-launcher</artifactId>
<version>1.6.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-engine</artifactId>
<version>1.6.0</version>
</dependency>