It seems a bug, the JUnit docs state this:
```
*...
# kotlintests
sam
04/03/2019, 2:06 PMIt seems a bug, the JUnit docs state this:
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* <p>The {@link TestExecutionResult} describes the result of the execution
* for the supplied {@code testDescriptor}. The result does not include or
* aggregate the results of its children. For example, a container with a
* failing test must be reported as {@link Status#SUCCESSFUL SUCCESSFUL} even
* if one or more of its children are reported as {@link Status#FAILED FAILED}.