java - Configuring res srcDirs for androidTest sourceSet

Question

I'd like to include resources to be compiled only for testing.

I have the following in my app module build.gradle file:

android {

    ...

    sourceSets {
        androidTest {
            java.srcDirs = ['src/androidTest/java']
            res.srcDirs = ['src/androidTest/res']
        }
    }
}

The java srcDirs path is correct, yet if I try to get a resource from the res directory in androidTest, the resource can't be found.

How can I have resources in the androidTest directory that are only included for tests?

Answer 1

Turns out you don't need to change anything from the default build.gradle file.

The trick is that the auto-generated R.java file is different for resources in androidTest.

If the import statement for R somewhere in your main source set looks like:

import com.mycompany.myappname.R;

the import statement for R in a test file should look like:

import com.mycompany.myappname.test.R;