RegistryEndpointProvider<Void> committer(URL location) {
    return new Committer(location);
  }
@Test
  public void testCommitter_getApiRoute() throws MalformedURLException {
    Assert.assertEquals(
        new URL("https://someurl?somequery=somevalue&digest=" + fakeDescriptorDigest),
        testBlobPusher.committer(new URL("https://someurl?somequery=somevalue")).getApiRoute(""));
  }