@Test
public void setFocus() {

    collectionEditorDOMElementSpy.setFocus(true);
    verify(widgetMock, times(1)).setFocus(eq(true));
    reset(widgetMock);
    collectionEditorDOMElementSpy.setFocus(false);
    verify(widgetMock, times(1)).setFocus(eq(false));
}