Run tests independently to avoid JVM memory issue

Author: jkasten2

.travis.yml

@@ -17,11 +17,12 @@ before_script:
     - yes | sdkmanager "platforms;android-27"
     - chmod +x gradlew
 script:
-    - ./gradlew build
+    - ./gradlew --tests "com.onesignal.androidsdk.MainTest"
+    - ./gradlew --tests "com.onesignal.androidsdk.FullBuildTest"
 after_failure:
     - cat build/reports/lint-results.xml
     - cat build/outputs/lint-results-debug.xml
     - cd ../..
     - pwd
     - ls -la $HOME
-    - ls -la $HOME/android-sdk
+    - ls -la $HOME/android-sdk