Move LanguageState to the translate component

chrome/browser/tab_contents/language_state_unittest.cc

-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/tab_contents/language_state.h"
-
-#include "base/memory/scoped_ptr.h"
-#include "chrome/browser/tab_contents/language_state_observer.h"
-#include "chrome/browser/ui/tabs/tab_strip_model.h"
-#include "chrome/test/base/browser_with_test_window_test.h"
-#include "content/public/browser/web_contents.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace {
-
-class MockLanguageStateObserver : public LanguageStateObserver {
- public:
-  MockLanguageStateObserver()
-      : on_is_page_translated_changed_called_(false),
-        on_translate_enabled_changed_called_(false) {
-  }
-
-  virtual ~MockLanguageStateObserver() {}
-
-  virtual void OnIsPageTranslatedChanged(
-      content::WebContents* source) OVERRIDE {
-    on_is_page_translated_changed_called_ = true;
-  }
-
-  virtual void OnTranslateEnabledChanged(
-      content::WebContents* source) OVERRIDE {
-    on_translate_enabled_changed_called_ = true;
-  }
-
-  bool on_is_page_translated_changed_called() const {
-    return on_is_page_translated_changed_called_;
-  }
-
-  bool on_translate_enabled_changed_called() const {
-    return on_translate_enabled_changed_called_;
-  }
-
- private:
-  bool on_is_page_translated_changed_called_;
-  bool on_translate_enabled_changed_called_;
-
-  DISALLOW_COPY_AND_ASSIGN(MockLanguageStateObserver);
-};
-
-}  // namespace
-
-typedef BrowserWithTestWindowTest LanguageStateTest;
-
-TEST_F(LanguageStateTest, IsPageTranslated) {
-  LanguageState language_state(NULL);
-  EXPECT_FALSE(language_state.IsPageTranslated());
-
-  // Navigate to a French page.
-  language_state.LanguageDetermined("fr", true);
-  EXPECT_EQ("fr", language_state.original_language());
-  EXPECT_EQ("fr", language_state.current_language());
-  EXPECT_FALSE(language_state.IsPageTranslated());
-
-  // Translate the page into English.
-  language_state.SetCurrentLanguage("en");
-  EXPECT_EQ("fr", language_state.original_language());
-  EXPECT_EQ("en", language_state.current_language());
-  EXPECT_TRUE(language_state.IsPageTranslated());
-
-  // Move on another page in Japanese.
-  language_state.LanguageDetermined("ja", true);
-  EXPECT_EQ("ja", language_state.original_language());
-  EXPECT_EQ("ja", language_state.current_language());
-  EXPECT_FALSE(language_state.IsPageTranslated());
-}
-
-TEST_F(LanguageStateTest, Observer) {
-  GURL url("http://foo/");
-  AddTab(browser(), url);
-  content::NavigationController& navigation_controller =
-      browser()->tab_strip_model()->GetWebContentsAt(0)->GetController();
-
-  scoped_ptr<MockLanguageStateObserver> observer(
-      new MockLanguageStateObserver);
-  LanguageState language_state(&navigation_controller);
-  language_state.set_observer(observer.get());
-
-  // Enable/Disable translate.
-  EXPECT_FALSE(language_state.translate_enabled());
-  EXPECT_FALSE(observer->on_translate_enabled_changed_called());
-  language_state.SetTranslateEnabled(true);
-  EXPECT_TRUE(language_state.translate_enabled());
-  EXPECT_TRUE(observer->on_translate_enabled_changed_called());
-
-  observer.reset(new MockLanguageStateObserver);
-  language_state.set_observer(observer.get());
-  language_state.SetTranslateEnabled(false);
-  EXPECT_FALSE(language_state.translate_enabled());
-  EXPECT_TRUE(observer->on_translate_enabled_changed_called());
-
-  // Navigate to a French page.
-  observer.reset(new MockLanguageStateObserver);
-  language_state.set_observer(observer.get());
-  language_state.LanguageDetermined("fr", true);
-  EXPECT_FALSE(language_state.translate_enabled());
-  EXPECT_FALSE(observer->on_is_page_translated_changed_called());
-  EXPECT_FALSE(observer->on_translate_enabled_changed_called());
-
-  // Translate.
-  language_state.SetCurrentLanguage("en");
-  EXPECT_TRUE(language_state.IsPageTranslated());
-  EXPECT_TRUE(observer->on_is_page_translated_changed_called());
-
-  // Translate feature must be enabled after an actual translation.
-  EXPECT_TRUE(language_state.translate_enabled());
-  EXPECT_TRUE(observer->on_translate_enabled_changed_called());
-}