To run all the tests:
./gradlew installDebugAndroidTest
./gradlew installDebug
./gradlew grantPermissions
./gradlew connectAndroidTest -i

To run a specific suite:
adb shell am instrument -w -r -e debug false -e class 'org.linphone.tester.<suite name>Tests' org.linphone.tester.test/android.support.test.runner.AndroidJUnitRunner
