Test running twice or not

[pacifickashyap]

As per my observation,
spoon first run the command - am instrument -w -r -e log true com.xxx.app.test/android.support.test.runner.AndroidJUnitRunner
to get the list of Active Tests
then again run the test one by one to get the result.

Issue:
test running twice increasing time
sometime if there is large number of test cases, app crashes to provide imcomplete list of Active test resulting in some test cases not running.

can anything be done to get the list without running the test cases.