chrome/browser/policy/test/locale_policy_browsertest.cc

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <string>

#include "base/threading/thread_restrictions.h"
#include "base/values.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/policy/policy_test_utils.h"
#include "chrome/common/webui_url_constants.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "chrome/test/base/ui_test_utils.h"
#include "components/policy/core/common/policy_map.h"
#include "components/policy/policy_constants.h"
#include "components/strings/grit/components_strings.h"
#include "content/public/test/browser_test.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"

namespace policy {

// This policy only exists on Windows.

// Sets the locale policy before the browser is started.
class LocalePolicyTest : public PolicyTest {
 public:
  LocalePolicyTest() {}
  ~LocalePolicyTest() override {}

  void SetUpInProcessBrowserTestFixture() override {
    PolicyTest::SetUpInProcessBrowserTestFixture();
    PolicyMap policies;
    policies.Set(key::kApplicationLocaleValue, POLICY_LEVEL_MANDATORY,
                 POLICY_SCOPE_USER, POLICY_SOURCE_CLOUD, base::Value("fr"),
                 nullptr);
    provider_.UpdateChromePolicy(policies);
    // The "en-US" ResourceBundle is always loaded before this step for tests,
    // but in this test we want the browser to load the bundle as it
    // normally would.
    ui::ResourceBundle::CleanupSharedInstance();
  }
};

IN_PROC_BROWSER_TEST_F(LocalePolicyTest, ApplicationLocaleValue) {
  // Verifies that the default locale can be overridden with policy.
  EXPECT_EQ("fr", g_browser_process->GetApplicationLocale());
  ASSERT_TRUE(ui_test_utils::NavigateToURL(browser(),
                                           GURL(chrome::kChromeUINewTabURL)));
  std::u16string french_title = l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE);
  std::u16string title;
  EXPECT_TRUE(ui_test_utils::GetCurrentTabTitle(browser(), &title));
  EXPECT_EQ(french_title, title);

  // Make sure this is really French and differs from the English title.
  base::ScopedAllowBlockingForTesting allow_blocking;
  std::string loaded =
      ui::ResourceBundle::GetSharedInstance().ReloadLocaleResources("en-US");
  EXPECT_EQ("en-US", loaded);
  std::u16string english_title = l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE);
  EXPECT_NE(french_title, english_title);
}

}  // namespace policy