Android Studio does not resolve androidTestImplementation dependencies in custom project layout

Question

I have a project which uses a non-standard source folder layout like this:

sourceSets {
    androidTest {
        manifest.srcFile "/myproject/androidTest/AndroidManifest.xml"

        java {
            srcDirs = [
                "/myproject/androidTest/java"
            ]
        }
    }
}

Android studio shows the above source folder just fine and also tags it as "androidTest" in the tree. The problem now starts with dependencies like espresso not resolving in any of the tests (class not found in AS) - although they have been properly declared like this:

 androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

If I change 'androidTestImplementation' to just 'implementation' Android Studio recovers and is able to resolve the dependencies (but I do not want to add test dependencies to my implementation scope!)

Is this just a bug in Android Studio 3.2.1 or is there a bug in my setup?

Answer 1

Had the same problem. And accidentally found solution...

Just use brackets... so in your case it is:

androidTestImplementation('com.android.support.test.espresso:espresso-core:3.0.2')