Setting number of threads for JUnit execution

Question

Poorly written unit tests are generally affected by the parallelism in JUnit execution. Can setting the number of threads for JUnit helps?

I read it somewhere, but I'm not sure. Can someone tell how can we set it? And where?

IMHO, by default JUnit does not execute tests in parallel, that's why someone else has written a parallel test runner. — Thomas Weller
– Thomas Weller, Commented Sep 3, 2015 at 12:15

MattAllegro · Accepted Answer · 2020-12-22 07:59:42Z

3

By defaul jUnit executes @Test methods in 4 threads. Howerver you can increase that number by putting:

junit.jupiter.execution.parallel.config.fixed.parallelism={numberOfThreads}

into:

src/main/resources/junit-platform.properties

MattAllegro

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answered Dec 22, 2020 at 7:18

Kirill Klimchukov

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