Combined JUnit, Cucumber and MultiDex instrumentation test runner

MultiDexCucumberJUnitRunner.java

public class MultiDexCucumberJUnitRunner extends AndroidJUnitRunner {
    private final CucumberInstrumentationCore mInstrumentationCore = new CucumberInstrumentationCore(this);

    @Override
    public void onCreate(Bundle arguments) {
      MultiDex.install(getTargetContext());
      mInstrumentationCore.create(arguments);
      super.onCreate(arguments);
    }

    @Override
    public void onStart() {
        super.onStart();

        waitForIdleSync();
        mInstrumentationCore.start();
        allFinished();
    }
  
    private int mResultCode;
    private Bundle mResults = new Bundle();
  
    /**
     * Catch calls to finish() and aggregate results into a bundle
     */
    @Override
    public void finish(int resultCode, Bundle results) {
        mResultCode = resultCode;
        mResults.putAll(results);
    }
  
    private void allFinished() {
        super.finish(mResultCode, mResults);
    }
}