Test run in multiple threads

[slawekjaranowski]

We can annotate test with:

    @Mock
    private MyType mock;

    @Test(threadPoolSize = 3, invocationCount = 8)
    public void testParallel() {
     ....
    }

In this case MockitoTestNGListener will not work as we want.
In current implementation MockitoSession is bind to current test instance, but TestNG create one test instance and run test in multiple thread.

Issue need more investigate how to resolve problem.

We must to check and discover how mocked field should be distinguished on one test instance and multiple thread.

Please like / react on issue to we see how many people are interested this issue.

[slawekjaranowski]

This testng-team/testng#1872 is probably connected.

[mlieshoff]

I strongly guess it throws ConcurrentModificationExceptions because of the usage of HashMaps instead of ConcurrentHashMaps in the MockitoTestNGListener class. The (not thread safe) handling of the fixtures seems to be a problem in the framework and related to the referenced issue. But at least the listener itself could be thread safe with changing the Map implementation and make life a bit easier :)