Intellij not shows test results in console

问题:

Howto set the output in test console? When i run test by default the output is replaced by the summary of the test, and System.outs are lost.

回答1:

It's different for tests that failed and tests that works.

If no test fails you'll have to click the top level of all tests that ran you'll see the output.

If you click on any specific working test they'll be empty, even if they printed something. If you click on any specific failing test they'll show the output from all previous tests, including the one that failed.

回答2:

In IDEA 12,13 and 14 (also maybe other versions), there is a button "Hide passed tests" and is pressed by default:

The console output is missing some of the printed strings (the last ones). When you uncheck the button and click on the test:

Then the output is shown in the console.

回答3:

I got it! There is an configuration option in bottom run panel, and by default "Track running test" is checked, when I unchecked it the output stays and is no more replaced by summary.

回答4:

Another possibility is that your logging is maybe configured to be written to a file. If this is the case, you can uncheck the 'Save console output to file' option.

回答5:

What version of IntelliJ are you using? Normally when running a unit test, you have a Run tab at the bottom of your application and you see appear your test logging (System.outs) in there...

回答6:

If your test output disappear when the test finish to run (and failing),

Disable "Select First Failed test When Finished" in order to see all prints

回答7:

In the 2016.x versions, you need to change so that your launch configuration has "Activate Tool Window" unchecked (at the bottom).