@Test
public void push_backButtonIsNotAddedIfScreenContainsLeftButton() {

    disablePushAnimation(child1, child2);
    uut.push(child1, new CommandListenerAdapter());
    child2.options.topBar.buttons.left = new ArrayList<>(Collections.singleton(TitleBarHelper.iconButton("someButton", "icon.png")));
    uut.push(child2, new CommandListenerAdapter());
    assertThat(topBarController.getView().getTitleBar().getNavigationIcon()).isNotNull();
    verify(topBarController.getView(), times(0)).setBackButton(any());
}