testBulkLoaderLoadError() {
    const uris = ['a', 'b', 'c'];
    const bulkLoader = getNonSuccessfulBulkLoader(uris);

    bulkLoader.load();

    clock.tick(2);
    assertFalse('The bulk loader is not yet loaded (after 2 ticks)', loadError);

    clock.tick(3);
    assertFalse('The bulk loader is not yet loaded (after 5 ticks)', loadError);

    clock.tick(5);
    assertFalse(
        'The bulk loader is not yet loaded (after 10 ticks)', loadError);

    clock.tick(5);
    assertFalse(
        'The bulk loader is not loaded successfully (after 15 ticks)',
        loadSuccess);
    assertTrue(
        'The bulk loader is loaded in error (after 15 ticks)', loadError);
    assertEquals('Ensure that the error status is present', 500, errorStatus);
  }
Test error loading URIs using the bulkloader.