JUnit5 Jupiter test terminated in IntelliJ

问题

When I run the my unit tests, they immediatly are being terminated. However no logging is presented. (only 'Failed to start' and 'Process finished with exit code 255').

Tests worked before... JUnit 4 does not give me this problem. Test do run succesfully in Maven.

I use JUnit5 Jupiter and IntelliJ IDEA 2020.1 (Ultimate Edition).

Anyone any thoughts?

回答1:

I just had the same issue.

The single thing that fixed this - and which I could reproduce - is this: don't .close() System.out (or System.err).

@Test
void failure()
    {
    System.out.close();
    }

makes happen what you describe.

Wherever I passed System.out to functions that would .close() their OutputStream later, I replaced them with a new ByteArrayOutputStream() instead.

来源：https://stackoverflow.com/questions/63051696/junit5-jupiter-test-terminated-in-intellij