[wildfly-dev] Testing with Testcontainers, Arquillian and JUnit 5

TLDR; I've setup a PoC [1] for an alternative way to test the HAL management console. The PoC is based on Testcontainers [2], Arquillian [3] and JUnit 5. Although this is primarily intended for UI testing, the usage of Testcontainers could also be interesting for the WildFly test suite. --- The existing HAL test suite [4] is a rich test suite for the HAL management console. It contains 300+ UI tests based on Arquillian [3]. The UI tests require a browser and a running WildFly instance as an execution environment. This makes is hard to run the tests on a CI server. Another issue is that the tests are not very stable and often run into timeouts. To execute the complete test suite you need a stable environment. Recently I came across Testcontainers [2], which provide a nice API to start arbitrary containers before / after (all) unit tests. The library also provides an elegant way to start and use browsers in remote web containers. Therefore, I decided to implement a PoC which provides an alternative and more stable way to test the HAL management console. Tests are self contained and can run in CI environments such as GH Actions or Teamcity. At the same time the new approach has to be compatible with the existing test suite. Tests should be runnable w/o major code changes using the new approach. The result is [1]. If you're interested, feel free to take a look and let me know what you think! --- [1] https://github.com/hpehl/manatoko [2] https://www.testcontainers.org/ [3] http://arquillian.org/arquillian-graphene/ [4] https://github.com/hal/testsuite.next