Instruction coverage at method level instead of class level

[Benjamin Danglot]

Hello all,

I am using Jacoco inside a project, to compute instruction coverage of test methods.

For now, I could only count the instruction coverage at test class level. I would to know if it is possible to count the instruction coverage at test method level.

For instance, I have example.Example, which is testes by example.TestSuiteExample. The test class contains 2 test methods test1 and test2.

Thanks to the CoverageBuilder and the Analyzer, I'm able to measure the number of instructions covered by the class example.TestSuiteExample.

However, I would like to know the number of instruction covered by test1 and test2 independently. For now, I found a work around: I run Jacoco for each test method, one by one.

But this is costly in terms of time computation.

Would mind to indicate me if there is a way to log at the test method level instead of at the test class level?

If not, there is a way to implement it?

Best regards,

-- Benjamin DANGLOT.

[Marc Hoffmann]

Hi,

the Analyzer and CoverageBuilder works only on one ExecutionDataStore at time. If you want to calculate coverage separately for different test cases you need to capture execution data separately and do the analysis separately. For large test sets this will create enormous amount of data. Therefore such a feature was never integrated in JaCoCo.

Regards,
-marc

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[Benjamin Danglot]

Hi Marc,

Thank you for your answer.

There is a way to integrate this feature in JaCoCo?

Best regards,

-- Benjamin DANGLOT.

[Evgeny Mandrikov]

So far there is no plans to integrate this in JaCoCo for many reasons, one of which as  Marc said - is amount of data.

However you can implement your own JUnitExecutionListener which will use public JaCoCo runtime API ( http://www.jacoco.org/jacoco/trunk/doc/api/index.html ) to record per-test data.

Please also do a search of messages in this group - such questions were asked and answered multiple times in past, e.g. https://groups.google.com/d/msg/jacoco/Qs9P5cyt58s/gzsBAP8qBgAJ

Regards,

Evgeny