TestNG support

[bsideup]

Sub-task of #87

[laurikimmel]

The second birthday is almost there!
Any news on this one?

[bsideup]

@laurikimmel actually yes :)
We're working on the unified, framework-agnostic API as part of JUnit 5:
#636

The reason why TestNG didn't receive enough attention is because you can already use TC with TestNG by calling .start()/.stop(). And since there is no such thing as rule in TestNG, there is not much we can do

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. If you believe this is a mistake, please reply to this comment to keep it open. If there isn't one already, a PR to fix or at least reproduce the problem in a test case will always help us get back on track to tackle this.

[kiview]

We basically support this, see the examples:
https://github.com/testcontainers/testcontainers-java/blob/master/examples/redis-backed-cache-testng/src/test/java/RedisBackedCacheTest.java

[olyv]

@kiview did you by any chance try to run tests in parallel using TestNG?