如何以并行模式运行有序的 JUnit5 测试

Question

I have a need to run dependent tests (not unit, but long UI-scenarios with selenium). There are reasons related to the environment, because of which I have to prepare a "random" state, and use this state in other tests. To do this, I perform a series of actions, after which I get a link, save it to a static String variable in a method annotated as @Order (1). After that, in methods annotated by @Order (2 and more), the link stored in the static String variable is available

Usually the order is random, but if you follow the manual , then in one thread everything works great.

The number of tests is quite large, so it seemed logical to run them in parallel. It's no problem for 5.3 and newer version. I use "Configuration parameters to execute top-level classes in parallel but methods in same thread". For ordinary test classes it works like that. And now the problem. Just add the @Execution(ExecutionMode.CONCURRENT), how the order stops working. Because of this, instead of link in a static variable, I get null. Is it possible to fix it?

Thank you in advance

Answer 1

Pretty noob mistake. It turned out to be enough to add annotation @Execution(ExecutionMode.SAME_THREAD) to each method that should be executed in the same thread as the parent.

It's not entirely clear what the settings do in junit-platform.properties. But perhaps I wishful thinking by reading the manual. It took half a day to understand this (((