`Class not found: com.package.Class. Empty test suite.` Android Studio, why? Some of details. Trying...

# android

[miha-x64]

Class not found: com.package.Class. Empty test suite. Android Studio, why?
Some of details. Trying to test Java Library module in AS which depends ob another Java Library and another library's test-scope classes. Java tests work. Why?

[zak.taccardi]

miha-x64: check to make sure the product flavors of your modules are lined up correctly in the build variant section

[miha-x64]

@zak.taccardi I have no flavors and build variants in this module 🙂

[miha-x64]

Solved by adding apply plugin: 'kotlin'

[zak.taccardi]

nice

[themarketka]

I tried that and it failed at apply plugin: 'kotlin-android' 😢

[miha-x64]

themarketka: What is the text of your error message? Which version of Kotlin plugin you are using?

[themarketka]

It keeps saying "Empty test suite.", sometimes "class not found" with the class that contains the tests, plugin 1.0.6-release-IJ2016.3-1

[miha-x64]

Make sure all your modules with Kotlin contain appropriate ‘apply plugin’, this helped for me

[themarketka]

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-kapt'
apply plugin: 'io.fabric'
apply plugin: 'com.getkeepsafe.dexcount'

that’s in the tested module’s build.gradle

[miha-x64]

I don’t know then 😞. Can you build the project?

[themarketka]

Maybe I’m running the tests wrong… The project builds and runs fine, it just can’t find the tests, like if the class with test wasn’t even on classpath or something

[themarketka]

Even unit tests alone work, but not these instrumentation ones (@RunWith(AndroidJUnit4::class))

[themarketka]

Might be a good thing to see if the same would run were it in the androidTest/java dir as Java instead of androidTest/kotlin.

[themarketka]

And yes, I have this:

sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
        test.java.srcDirs += 'src/test/kotlin'
        androidTest.java.srcDirs += 'src/main/kotlin'
        androidTest.java.srcDirs += 'src/androidTest/kotlin'
        ...
}

[miha-x64]

androidTest.java.srcDirs += ‘src/main/kotlin’ looks suspiciously.

[zak.taccardi]

you should put kotlin files in src/main/java

[zak.taccardi]

no need for a second src/main/kotlin dir

[themarketka]

I’ll try if it makes any difference!