  @Test public void shouldDrawAllEightAreasForADrawable() {

    givenThatThereIsOneCellToRender();
    Drawable drawableMock = mock(Drawable.class);
    when(drawableMock.mutate()).thenReturn(drawableMock);
    List<Layer> layers = getSingleDrawableLayer(drawableMock);
    dividerItemDecoration = new DividerItemDecoration(layers);

    dividerItemDecoration.onDrawOver(canvasMock, recyclerViewMock, recyclerViewStateMock);

    verify(drawableMock, times(8)).draw(Matchers.eq(canvasMock));
  }