@Test
public void testNoVisibleTools() {

  when(myModel.getHiddenSliders()).thenReturn(ImmutableList.of(myToolWindow1, myToolWindow2));
  myPanel.modelChanged(myModel, myEventType);
  assertThat(mySplitter.isVisible()).isFalse();
  assertThat(myContainer.getComponents()).asList().containsExactly(myToolWindowComponent1, myToolWindowComponent2);
}