No coverage in 'all classes in scope' in Intellij

Question

In Intellij IDEA 14.1.5 Community edition, I imported maven to get coverage from jacoco.exec file. Steps followed

1. right click on imported module.

2. select Analyze-->Show Converage Data.

3. provided valid jacoc.exec file and click 'show selected'

Instead of coverage i'm getting error as no coverage in 'all classes in scope'

can anybody suggest what is wrong?

Longspur

Can you try to downgrade jacoco to 7.4.x or earlier? – Goggle

I'm using Jacoco 0.7.8 and seeing this in IntelliJ as well – Pavior

Answer 1

I had the same thing happen to me.

I was able to fix this by going to "Edit Configurations", to the "Code Coverage" tab.

I'm not sure what caused it, but the wrong package namespace was listed there. I updated the entry there and my subsequent test run with code coverage succeeded.

Gardenia

just FYI for me this happened because the package structure of my test code and my productive code didn't match. So my class was in foo.bar.baz.myclass and testclass was in foo.bar.mytestclass – Finagle

Answer 2

It happens if your test class and class to test are in different package structures.

My test class was in:

com.tools.api

Class to be tested was in:

com.tools.ws

Once I've corrected the pattern as com.tools.* in the code coverage tab, I was able to see coverage results.

Autoxidation

Thank you! It turns out that IntelliJ makes a poor choice about what coverage you want to see when you choose to only run one test. It creates a new Run Configuration when you choose to run only one test class or one package of test classes. It defaults to only recording coverage for classes that are in the same package as the test. That caused a problem for me since I sub-package my tests sometimes. This answer clued me into that fact. – Valuation

Matching the classes and test classes is probably the best for consistency and readability anyway – Myrlmyrle

Thanks for the solution. I like to add another packacke named "unit" or "integration" because e.g. I test the service class as a unit test ( with moching the db ) and as integration test ( with a test db). I know this can be deone with naming the class MyServiceUnitTest and MyServiceIntegrationTest but I like the additional strucuture. So defining the included packe solves the problem. – Mothball

Answer 3

I was able to fix this issue by:

1. Open Edit Configurations menu
2. Click on Modify Options > Coverage settings > Specify classes and packages
3. In the new box that appears, click on the plus to add a package
4. Select a high level package from the project

Twist

This worked in my case. thanks! – Boogiewoogie

Answer 4

I had the same problem and found solution here.

In the Code Coverage tab, define the following options:

Specify the scope to measure code coverage for. Do one of the following: To specify a class, click the Add Class button.

To specify a package, click the Add Package button.

Yuji