private void doAsserts(ModulePrefs prefs) {
    assertEquals("title", prefs.getTitle());
    assertEquals(SPEC_URL.resolve(Uri.parse("title_url")), prefs.getTitleUrl());
    assertEquals("description", prefs.getDescription());
    assertEquals("author", prefs.getAuthor());
    assertEquals("author_email", prefs.getAuthorEmail());
    assertEquals(SPEC_URL.resolve(Uri.parse("screenshot")), prefs.getScreenshot());
    assertEquals(SPEC_URL.resolve(Uri.parse("thumbnail")), prefs.getThumbnail());
    assertEquals("directory_title", prefs.getDirectoryTitle());
    assertEquals(1, prefs.getWidth());
    assertEquals(2, prefs.getHeight());
    assertTrue(prefs.getScrolling());
    assertFalse(prefs.getScaling());
    assertEquals("category", prefs.getCategories().get(0));
    assertEquals("category2", prefs.getCategories().get(1));
    assertEquals("author_affiliation", prefs.getAuthorAffiliation());
    assertEquals("author_location", prefs.getAuthorLocation());
    assertEquals(SPEC_URL.resolve(Uri.parse("author_photo")), prefs.getAuthorPhoto());
    assertEquals(SPEC_URL.resolve(Uri.parse("author_link")), prefs.getAuthorLink());
    assertEquals("author_aboutme", prefs.getAuthorAboutme());
    assertEquals("author_quote", prefs.getAuthorQuote());
    assertTrue(prefs.getShowStats());
    assertTrue(prefs.getShowInDirectory());
    assertTrue(prefs.getSingleton());

    assertTrue(prefs.getFeatures().get("require").getRequired());
    assertFalse(prefs.getFeatures().get("optional").getRequired());

    assertEquals("http://example.org", prefs.getPreloads().get(0).getHref().toString());

    assertEquals(1, prefs.getIcons().size());

    assertEquals(1, prefs.getLocales().size());

    assertEquals(Uri.parse("http://example.org/link"), prefs.getLinks().get("link").getHref());

    OAuthService oauth = prefs.getOAuthSpec().getServices().get("serviceOne");
    assertEquals(Uri.parse("http://www.example.com/request"), oauth.getRequestUrl().url);
    assertEquals(OAuthService.Method.GET, oauth.getRequestUrl().method);
    assertEquals(OAuthService.Method.GET, oauth.getAccessUrl().method);
    assertEquals(OAuthService.Location.HEADER, oauth.getAccessUrl().location);
    assertEquals(Uri.parse("http://www.example.com/authorize"), oauth.getAuthorizationUrl());

    Multimap<String, Node> extra = prefs.getExtraElements();

    assertTrue(extra.containsKey("NavigationItem"));
    assertEquals(1, extra.get("NavigationItem").iterator().next().getChildNodes().getLength());
  }