@Test
public void testNoCustomConstants() {

  List<ViewManager> viewManagers = Arrays.asList(mock(ViewManager.class));
  UIManagerModule uiManagerModule =
      new UIManagerModule(mReactContext, viewManagers, mUIImplementationProvider, false, 0);
  Map<String, Object> constants = uiManagerModule.getConstants();
  assertThat(constants)
      .containsKey(CUSTOM_BUBBLING_EVENT_TYPES)
      .containsKey(CUSTOM_DIRECT_EVENT_TYPES)
      .containsKey("Dimensions");
}