Android Espresso FlakyTest annotation - how to filter tests on execution?

Issue

From what i read from these docs we can annotate any flakytests and then there should be a way to filter them out and run them alone.I was thinking firebase robo tests will know about this and re -tests the flaky ones only, but the following statements have confused me :

Can then be used to filter tests on execution using -e annotation or -e notAnnotation as desired.

What is this switch -e ? How can i filter tests ? the comment leads me to confusion on how to fitler tests on execution. is it done on the gradle command line ? Can i get an example ?

Solution

enter code hereI finally found out how to do this. When you put annotations on test methods you can run a group of methods that have the same annotation. Reading the docs we find out how to do this. so if i were to mark many tests as @FlakyTest then i can run all of the FlakyTest with adb like this:

adb shell am instrument -w -e annotation android.support.test.filters.FlakyTest

Here is an the part of the AndroidJUnitRunner docs explaining this:

Filter test run to tests with given annotation: adb shell am instrument -w -e annotation com.android.foo.MyAnnotation com.android.foo/android.support.test.runner.AndroidJUnitRunner

Answered By - j2emanue