@Test
 public void should_return_proper_accept_mime_type() {
   when(configurationMock.getAcceptMimeType()).thenReturn(MimeType.XML);
   String retrieved = MimeTypeUtil.toCorrectAcceptMime(configurationMock, jobMime);
   assertEquals(retrieved, "application/job+xml");
 }
 @Test
 public void should_return_proper_content_mime_type() {
   when(configurationMock.getContentMimeType()).thenReturn(MimeType.JSON);
   String retrieved = MimeTypeUtil.toCorrectContentMime(configurationMock, collectionMime);
   assertEquals(retrieved, "application/collection+json");
 }