How to execute Espresso multiple test classes separately using gradlew command

Question

I have Espresso instrumentaion test cases in following form in Android studio.

Now, I want to run few of the classes separately.

E.g : I want to run Only CrashersTest and EM3AppUtil classes using gradlew command and rest classes using another command.

How can i achieve it?

• I am using below command

./gradlew :app:connectedLocalDebugAndroidTest

• It runs all the classes for LocalDebug variant
• I want to run only few classes

Answer 1

There isn't a great way to do it for instrumented tests right now that I know of.

You can create a test suite to run just certain test you want, like documented here https://developer.android.com/training/testing/unit-testing/instrumented-unit-tests.html#test-suites

Or use the @SmallTest, @MediumTest or @LargeTest annotations on your tests and then pass in on command line like so

./gradlew connectedAndroidTest -Pandroid.testInstrumentationRunnerArguments.size=small