@Test
public void get_handleNullEntriesAndExtractor() {

    when(structureCache.get(page)).thenReturn(null);
    assertNull(model.get(page, 0));
    when(siteMapExtractorsContainer.findFirstFor(page)).thenReturn(null);
    assertNull(model.get(page, 0));
    when(structureCache.get(page)).thenReturn(Collections.emptyList());
    assertNull(model.get(page, 0));
}