source: class SirenTest {
  
      private static final String APP_DESCRIPTION_URL;
      @Mock Activity activity;
      @Mock SirenHelper sirenHelper;
      private SirenAlertWrapper alertWrapper;
      private Siren siren;
      private long lastCheckDate;
  
      @Test
      public void onImmediateVerification_versionCheckShouldBePerformedEveryTime() {
  
target:         siren.checkVersion(activity, SirenVersionCheckType.IMMEDIATELY, APP_DESCRIPTION_URL);
          Mockito.verify(alertWrapper, Mockito.times(1)).show();
  
          siren.checkVersion(activity, SirenVersionCheckType.IMMEDIATELY, APP_DESCRIPTION_URL);
          Mockito.verify(alertWrapper, Mockito.times(2)).show();
  
          siren.checkVersion(activity, SirenVersionCheckType.IMMEDIATELY, APP_DESCRIPTION_URL);
          Mockito.verify(alertWrapper, Mockito.times(3)).show();
      }
  
  }