Merge 53457 - Disable proxy config button and show banner if proxy prefs are managed.

chrome/browser/pref_set_observer_unittest.cc

+// Copyright (c) 2010 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/pref_set_observer.h"
+#include "chrome/common/notification_observer_mock.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/test/testing_pref_service.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+// Unit tests for PrefSetObserver.
+class PrefSetObserverTest : public testing::Test {
+ public:
+  virtual void SetUp() {
+    pref_service_.reset(new TestingPrefService);
+    pref_service_->RegisterStringPref(prefs::kHomePage, "http://google.com");
+    pref_service_->RegisterBooleanPref(prefs::kHomePageIsNewTabPage, false);
+    pref_service_->RegisterStringPref(prefs::kApplicationLocale, "");
+  }
+
+  PrefSetObserver* CreatePrefSetObserver(NotificationObserver* observer) {
+    PrefSetObserver* pref_set =
+        new PrefSetObserver(pref_service_.get(), observer);
+    pref_set->AddPref(prefs::kHomePage);
+    pref_set->AddPref(prefs::kHomePageIsNewTabPage);
+    return pref_set;
+  }
+
+  scoped_ptr<TestingPrefService> pref_service_;
+};
+
+TEST_F(PrefSetObserverTest, IsObserved) {
+  scoped_ptr<PrefSetObserver> pref_set(CreatePrefSetObserver(NULL));
+  EXPECT_TRUE(pref_set->IsObserved(prefs::kHomePage));
+  EXPECT_TRUE(pref_set->IsObserved(prefs::kHomePageIsNewTabPage));
+  EXPECT_FALSE(pref_set->IsObserved(prefs::kApplicationLocale));
+}
+
+TEST_F(PrefSetObserverTest, IsManaged) {
+  scoped_ptr<PrefSetObserver> pref_set(CreatePrefSetObserver(NULL));
+  EXPECT_FALSE(pref_set->IsManaged());
+  pref_service_->SetManagedPref(prefs::kHomePage,
+                                Value::CreateStringValue("http://crbug.com"));
+  EXPECT_TRUE(pref_set->IsManaged());
+  pref_service_->SetManagedPref(prefs::kHomePageIsNewTabPage,
+                                Value::CreateBooleanValue(true));
+  EXPECT_TRUE(pref_set->IsManaged());
+  pref_service_->RemoveManagedPref(prefs::kHomePage);
+  EXPECT_TRUE(pref_set->IsManaged());
+  pref_service_->RemoveManagedPref(prefs::kHomePageIsNewTabPage);
+  EXPECT_FALSE(pref_set->IsManaged());
+}
+
+MATCHER_P(PrefNameDetails, name, "details references named preference") {
+  std::wstring* pstr =
+      reinterpret_cast<const Details<std::wstring>&>(arg).ptr();
+  return pstr && *pstr == name;
+}
+
+TEST_F(PrefSetObserverTest, Observe) {
+  using testing::_;
+  using testing::Mock;
+
+  NotificationObserverMock observer;
+  scoped_ptr<PrefSetObserver> pref_set(CreatePrefSetObserver(&observer));
+
+  EXPECT_CALL(observer,
+              Observe(NotificationType(NotificationType::PREF_CHANGED),
+                      Source<PrefService>(pref_service_.get()),
+                      PrefNameDetails(prefs::kHomePage)));
+  pref_service_->SetUserPref(prefs::kHomePage,
+                             Value::CreateStringValue("http://crbug.com"));
+  Mock::VerifyAndClearExpectations(&observer);
+
+  EXPECT_CALL(observer,
+              Observe(NotificationType(NotificationType::PREF_CHANGED),
+                      Source<PrefService>(pref_service_.get()),
+                      PrefNameDetails(prefs::kHomePageIsNewTabPage)));
+  pref_service_->SetUserPref(prefs::kHomePageIsNewTabPage,
+                             Value::CreateBooleanValue(true));
+  Mock::VerifyAndClearExpectations(&observer);
+
+  EXPECT_CALL(observer, Observe(_, _, _)).Times(0);
+  pref_service_->SetUserPref(prefs::kApplicationLocale,
+                             Value::CreateStringValue("en_US.utf8"));
+  Mock::VerifyAndClearExpectations(&observer);
+}