@Test
    public void fetchDuplicatesFromURI() throws SameAsServiceException {
        Equivalence equivalence = this.service
                .getDuplicates(URI.create("http://www.bbc.co.uk/music/artists/e9dfc148-d5f6-425e-b80b-f99ed2bd7c09"));
        assertNotNull(equivalence);
        assertEquals(9, equivalence.getAmount());
    }