TestL10nOverlays.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "gtest/gtest.h"

#include "mozilla/dom/L10nOverlays.h"

#include "mozilla/dom/Document.h"

#include "mozilla/dom/L10nOverlaysBinding.h"

#include "mozilla/dom/Element.h"

#include "mozilla/NullPrincipal.h"

#include "nsNetUtil.h"

using mozilla::NullPrincipal;

using namespace mozilla::dom;

static already_AddRefed<Document> SetUpDocument() {

  nsCOMPtr<nsIURI> uri;

  NS_NewURI(getter_AddRefs(uri), "about:blank");

  nsCOMPtr<nsIPrincipal> principal =

      NullPrincipal::CreateWithoutOriginAttributes();

  nsCOMPtr<Document> document;

  nsresult rv = NS_NewDOMDocument(getter_AddRefs(document),

                                  u""_ns,   // aNamespaceURI

                                  u""_ns,   // aQualifiedName

                                  nullptr,  // aDoctype

                                  uri, uri, principal,

                                  false,    // aLoadedAsData

                                  nullptr,  // aEventObject

                                  DocumentFlavorHTML);

  if (NS_WARN_IF(NS_FAILED(rv))) {

    return nullptr;

  return document.forget();

/**

 * This test verifies that the basic C++ DOM L10nOverlays API

 * works correctly.

*/

TEST(DOM_L10n_Overlays, Initial)

  mozilla::ErrorResult rv;

  // 1. Set up an HTML document.

  nsCOMPtr<Document> doc = SetUpDocument();

  // 2. Create a simple Element with a child.

//

  //   <div>

  //     <a data-l10n-name="link" href="https://www.mozilla.org"></a>

  //   </div>

//

  RefPtr<Element> elem = doc->CreateHTMLElement(nsGkAtoms::div);

  RefPtr<Element> span = doc->CreateHTMLElement(nsGkAtoms::a);

  span->SetAttribute(u"data-l10n-name"_ns, u"link"_ns, rv);

  span->SetAttribute(u"href"_ns, u"https://www.mozilla.org"_ns, rv);

  elem->AppendChild(*span, rv);

  // 3. Create an L10nMessage with a translation for the element.

  L10nMessage translation;

  translation.mValue.AssignLiteral(

      "Hello <a data-l10n-name=\"link\">World</a>.");

  // 4. Translate the element.

  nsTArray<L10nOverlaysError> errors;

  L10nOverlays::TranslateElement(*elem, translation, errors, rv);

  nsAutoString textContent;

  elem->GetInnerHTML(textContent, rv);

  // 5. Verify that the innerHTML matches the expectations.

  ASSERT_STREQ(NS_ConvertUTF16toUTF8(textContent).get(),

               "Hello <a data-l10n-name=\"link\" "

               "href=\"https://www.mozilla.org\">World</a>.");