@simon.vergauwen, the junit4 dependency was a leftover from before I upgraded.
@verachadw, the spek-junit-platform-engine in conjunction with junit-platform-gradle-plugin seem to cause the junit5 spek engine to run, it just doesn’t find my spec. I see that in your kraph repo you annotate your tests with
@RunWith(JUnitPlatform.class)
– according to the JUnit 5 docs this is a
JUnit 4 test runner.