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Java Unit Testing in Java How to Test Running Tests and Reading Output

Test isn't running correctly unless i rebuild project

This is what's happening: 1- Run test with empty method body. result: SUCCESS 2- Add fail(); to the body of the method and run test. result: SUCCESS (should be FAIL!) 3- Rebuild project and run test again. result: FAIL.

So, as you see I don't get the correct result unless i rebuild the project (build->Rebuild project).

I'm using IntelliJ IDEA 15 CE.

What do you think might it be? is there some settings i should change? Thanks.

1 Answer

Craig Dennis
Craig Dennis
Treehouse Teacher

Hmmm...try to again right click the test directory and choose "Run all tests". Only thing I can think of is that it is a messed up Run Configuration.

Yes! it's a Run Configuration thing. Thanks.


  1. Run -> Edit Configurations.
  2. Add Make in "Before Launch: Make, Activate tool window".