source: class SimpleChromeCustomTabsAvailableAppProviderTest {
  
      private static final String NON_EMPTY_PACKAGE;
      @Mock
      private BestPackageFinder mockBestPackageFinder;
      @Mock
      private SimpleChromeCustomTabsAvailableAppProvider.PackageFoundCallback mockPackageFoundCallback;
      @Mock
      private Activity mockActivity;
      private SimpleChromeCustomTabsAvailableAppProvider simpleChromeCustomTabsAvailableAppProvider;
  
      @Test
      public void packageNotFoundIfEmpty() {
  
target:         givenThatPackageIsEmpty();
  
          simpleChromeCustomTabsAvailableAppProvider.findBestPackage(mockPackageFoundCallback, mockActivity);
  
          verify(mockPackageFoundCallback).onPackageNotFound();
      }
  
  }