@Test
public void testNumberOfCategoryParents(){

    Category cat;
    try {
        cat = wiki.getCategory(A_FAMOUS_CATEGORY);
        assertNotNull(cat);
        int numberOfParents = cat.getNumberOfParents();
        // expecting IDs: 5 and 6 to make up for 2 parent categories
        assertEquals(2, numberOfParents);
        
    } catch (WikiApiException e) {
        fail("A WikiApiException occurred while getting the category 'People of UKP': " + e.getLocalizedMessage());
    }
}