Using PowerMock and Mockito in an Android Instrumentation test - Error - Duplicate files - org.mockito.plugins.MockMaker

Question

I”m trying to use PowerMock to mock a class with a static method, but specifically I wish to do this within an Android Instrumentation test. To be clear I wish to run the test o

Answer 1

Do you have this into your project/module gradle?

packagingOptions {
    exclude 'fileNameYouWantToExclude'
}

In this way Androd will put just one file if duplicates are found

Answer 2

The only correct answer is PowerMockito does not support the Davik VM Android uses, it is meant for a standard JVM. So you can't use it with instrumented tests, only unit tests.

Answer 3

I was able to workaround this issue with the following. If you see any error message that says Duplicate files copied in APK [filename], add that [filename] to be excluded in the packagingOptions.

android {
    packagingOptions {
        exclude 'mockito-extensions/org.mockito.plugins.MockMaker'
    }
}