How can I select a specific set of tests (not in same package) to run in Android Studio?

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Using Run Configurations you can specify groups of tests to run, provided that they are in the same class or the same package. However, I want to specify a group of tests, where the tests are sprinkled throughout my test suite.

I was not able to find specific instructions for how to do this. I figured out a way, and thought I would share it here, in case anyone else finds it useful.

android-gradle-plugin android-testing android-studio
1 Answers

I solved the problem by creating an annotation (can be applied to a test class or to a test method), and having the test runner filter on that annotation.

Define Test Annotation

/**
 * This annotation is used to mark tests for devices with a physical
 * keyboard (Chromebook).
 *  
 * The annotation can be applied to test classes, and to individual
 * tests.
 */
@Target({ElementType.TYPE, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
public @interface PhysicalKeyboardTest {
}

Use Test Annotation

@Test
@PhysicalKeyboardTest
public void enterKey_shouldWork() {
    ...
}

Run Configuration - Single Device

In the Run Configuration dialog, under "Android Instrumented Tests"

  • Make a copy of "All Android Tests" configuration
  • Rename copy to "Physical Keyboard Tests"
  • In "Instrumentation arguments"
    • Name field: annotation
    • Value field: com.path-to-annotation-def.PhysicalKeyboardTest

The "Physical Keyboard Tests" run configuration will run all tests annotated with "@PhysicalKeyboardTest", anywhere in the test suite.

Run Configuration - All Connected Devices

In the Run Configuration dialog, under "Gradle"

  • Add a configuration:
    • Name: Physical Keyboard Tests (all devices)
    • Gradle project: select your app
    • Tasks: connectedCheck
    • Arguments: -Pandroid.testInstrumentationRunnerArguments.annotation=com.path-to-your-annotation-def.PhysicalKeyboardTest

The "Physical Keyboard Tests (all devices)" run configuration will run all tests annotated with "@PhysicalKeyboardTest", anywhere in the test suite, on all of the connected devices.

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