How to print to Jenkins' console report the messages from failed asserts?

Question

My FullStack tests run on Jenkins and output nothing on success, otherwise the test name and the failed line. This tells nothing about what went wrong.

Is there a way to print the assertion error message on the Jenkins console?

I have a TestWatcher that already takes a screenshot. Should it also do a System.out.println(e.getMessage())?

I want it to print something like this:

java.lang.AssertionError: Page is listing a different job
Expected: <true>
     but: was <false>

score 0 · Answer 1 · answered Jun 28 '16 at 13:37

0

You can use the Build Failure Analyzer Plugin for Jenkins to create some regex and print them on the build page.

It will be a link which jumps to the right line in the log.

answered Jun 28 '16 at 13:37

CSchulz

10,882
11
60
114

I don't think that's what I want, it looks like overkill also. I just want the output the message that the failed assertion already returns. – dialex Jun 28 '16 at 15:02
I think it is the only possbility. – CSchulz Jun 28 '16 at 15:17

score 0 · Accepted Answer · edited May 23 '17 at 11:58

Since Jenkins was invoking a gradle build, gradle was absorbing all intermediary outputs, and thus only the results were outputted to the Jenkins console.

This is what I did to solve the issue, on my gradle.build file:

nameOfTaskThatRunsTests {
    testLogging {
        events "standardOut"
    }
}

And on my java test file:

@Rule
public TestRule testWatcher = new TestWatcher() {
    @Override
    public void failed(Throwable t, Description test) {
        if (t instanceof AssertionError) {
            System.out.println("Failed assertion: " + t.getMessage());
        }
    }
};

How to print to Jenkins' console report the messages from failed asserts?

2 Answers2