Do not run a category of slow JUnit tests by default in Maven and every IDE (Eclipse, IntelliJ, …) without an explicit TestSuite

Question

I have a set of really slow tests, which take a week to run. (They literally run some code non-stop for about a week).

Naturally, no developer (or even the default build

Answer 1

This works by default, in Maven, IntelliJ and Eclipse:

import static org.junit.Assume.assumeTrue;

@Test
public void mySlowTest() {
    assumeTrue("true".equals(System.getProperty("runSlowTests")));
    ...
}

To run them anyway, simply add VM argument -DrunSlowTests=true.

Semantically speaking, it's totally wrong. But it works :)