JUnit4 - AssertionFailedError: No tests found

Question

I\'m using AndroidJUnitRunner with Espresso.

I wrote a simple test but always receive this exception. According to Stackoverflow answers, the problem is messing up the J

Answer 1

I found the problem. It was missed code in build.gradle in the main module. If you have this problem I advise to start with adding this line:

android {
    ...

    defaultConfig {
        ...

        testInstrumentationRunner 'android.support.test.runner.AndroidJUnitRunner'
    }
...
}