### Question:
ProcessConfigPagePresenter implements WizardPage { @Override public void isComplete( final Callback<Boolean> callback ) { callback.callback( true ); } @Inject  ProcessConfigPagePresenter( final ProcessConfigPresenter processConfigPresenter ); @Override String getTitle(); @Override void isComplete( final Callback<Boolean> callback ); @Override void initialise(); @Override void prepareView(); @Override Widget asWidget(); ProcessConfig buildProcessConfig(); void clear();  }### Answer:
@Test public void testIsComplete() { final Callback<Boolean> callback = mock( Callback.class ); presenter.isComplete( callback ); verify( callback ).callback( true ); }