Multiple annotations passed in am command not working as expected

[innovater21]

Description

If we pass multiple annotations in the am command, it runs all the tests instead of running only the tests with annotation.
Espresso documentation for multiple annotations - https://developer.android.com/reference/androidx/test/runner/AndroidJUnitRunner

Steps to Reproduce

1. Add annotations to your test functions ( @annotation1, @Annotation2 )
2. Run the am instrument command
3. adb shell am instrument -w -e annotation com.android.foo.Annotation1,com.android.foo.Annotation2 com.android.foo/androidx.test.runner.AndroidJUnitRunner

Expected Results

It should only run functions with the annotations. So if have 10 tests in total and we added annotation to only 2 , it should run 2/9 tests

Actual Results

It runs all the tests in the testsuite

AndroidX Test and Android OS Versions

com.android.foo/androidx.test.runner.AndroidJUnitRunner`
Android OS - 13

Note

This works fine with single annotation param

adb shell am instrument -w -e annotation com.android.foo.Annotation1 com.android.foo/androidx.test.runner.AndroidJUnitRunner

Link to a public git repo demonstrating the problem:

[TWiStErRob]

Try removing the space after the comma.

[innovater21]

@TWiStErRob it was a markdown space formatting issue. Edited description

Had run this command only

adb shell am instrument -w -e annotation com.android.foo.Annotation1,com.android.foo.Annotation2 com.android.foo/androidx.test.runner.AndroidJUnitRunner

[TWiStErRob]

I played around a bit and discovered that the behavior you describe happens (maybe not exclusively!) when the fully qualified class name is wrong, see https://github.com/TWiStErRob/repros/tree/main/espresso/instrument-annotations.

If this doesn't help, I think the repo owners will need a repro as the behavior seems correct in the repro above.

[innovater21]

Thanks @TWiStErRob . Will try reproducing this in the same manner

[brettchabot]

further to what @TWiStErRob stated, I'd suggest to also look at the logcat to see if there are any errors loading annotation classes. If there is an error loading an annotation class, an error will be logged and the '-e annotation' argument will be ignored.
https://cs.android.com/androidx/android-test/+/master:runner/android_junit_runner/java/androidx/test/internal/runner/TestRequestBuilder.java;drc=bdf7d5b385929998d9d0ed1b68c379b74e0d0d55;l=912