Build build = project.getModel().getBuild();

        Extension extension = createExtension("other.group", "other-artifact", "1.0");

        build.addExtension(extension);

        new ProjectSorter(Collections.singletonList(project));
    }

    @Test
    void testMatchingArtifactIdsDifferentGroupIds() throws Exception {

					t.Errorf("expected diff, but didn't get any")
				}
			}
		})
	}
}

func withVendorExtensions(s *spec.Schema, key string, value interface{}) *spec.Schema {
	s.VendorExtensible.AddExtension(key, value)
	return s
}

func refEqual(x spec.Ref, y spec.Ref) bool {
	return x.String() == y.String()
}