[protector] Homepage UI.

chrome/browser/protector/homepage_change_unittest.cc

+// Copyright (c) 2012 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 "base/memory/scoped_ptr.h"
+#include "base/utf_string_conversions.h"
+#include "base/values.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/protector/base_setting_change.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/test/base/testing_profile.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace protector {
+
+namespace {
+
+std::string kHomepage1 = "http://google.com/";
+std::string kHomepage2 = "http://example.com/";
+
+}
+
+class HomepageChangeTest : public testing::Test {
+  virtual void SetUp() OVERRIDE {
+    prefs_ = profile_.GetPrefs();
+  }
+
+ protected:
+  TestingProfile profile_;
+  PrefService* prefs_;
+};
+
+TEST_F(HomepageChangeTest, InitAndApply) {
+  prefs_->SetString(prefs::kHomePage, kHomepage1);
+
+  // Create a change and apply it.
+  scoped_ptr<BaseSettingChange> change(
+      CreateHomepageChange(kHomepage1, false, true, kHomepage2, false, true));
+  ASSERT_TRUE(change->Init(&profile_));
+  // Setting is initially reverted to backup.
+  EXPECT_EQ(kHomepage2, prefs_->GetString(prefs::kHomePage));
+
+  change->Apply(NULL);  // |browser| is unused.
+  // New setting active now.
+  EXPECT_EQ(kHomepage1, prefs_->GetString(prefs::kHomePage));
+}
+
+TEST_F(HomepageChangeTest, InitAndDiscard) {
+  prefs_->SetString(prefs::kHomePage, kHomepage1);
+
+  // Create a change and apply it.
+  scoped_ptr<BaseSettingChange> change(
+      CreateHomepageChange(kHomepage1, false, true, kHomepage2, false, true));
+  ASSERT_TRUE(change->Init(&profile_));
+  // Setting is initially reverted to backup.
+  EXPECT_EQ(kHomepage2, prefs_->GetString(prefs::kHomePage));
+
+  change->Discard(NULL);  // |browser| is unused.
+  // Nothing changed by Discard.
+  EXPECT_EQ(kHomepage2, prefs_->GetString(prefs::kHomePage));
+}
+
+}  // namespace protector