Fixed regression: various preferences were not persisted when changed from incognito window

chrome/browser/prefs/overlay_persistent_pref_store_unittest.cc

-// Copyright (c) 2011 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/values.h"
-#include "chrome/browser/prefs/overlay_persistent_pref_store.h"
-#include "chrome/browser/prefs/testing_pref_store.h"
-#include "chrome/common/pref_store_observer_mock.h"
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using ::testing::Mock;
-using ::testing::StrEq;
-
-const char key[] = "test.key";
-
-class OverlayPersistentPrefStoreTest : public testing::Test {
- public:
-  OverlayPersistentPrefStoreTest()
-      : underlay_(new TestingPrefStore()),
-        overlay_(new OverlayPersistentPrefStore(underlay_.get())) {
-  }
-
-  scoped_refptr<TestingPrefStore> underlay_;
-  scoped_refptr<OverlayPersistentPrefStore> overlay_;
-};
-
-TEST_F(OverlayPersistentPrefStoreTest, Observer) {
-  PrefStoreObserverMock obs;
-  overlay_->AddObserver(&obs);
-
-  // Check that underlay first value is reported.
-  EXPECT_CALL(obs, OnPrefValueChanged(StrEq(key))).Times(1);
-  underlay_->SetValue(key, Value::CreateIntegerValue(42));
-  Mock::VerifyAndClearExpectations(&obs);
-
-  // Check that underlay overwriting is reported.
-  EXPECT_CALL(obs, OnPrefValueChanged(StrEq(key))).Times(1);
-  underlay_->SetValue(key, Value::CreateIntegerValue(43));
-  Mock::VerifyAndClearExpectations(&obs);
-
-  // Check that overwriting change in overlay is reported.
-  EXPECT_CALL(obs, OnPrefValueChanged(StrEq(key))).Times(1);
-  overlay_->SetValue(key, Value::CreateIntegerValue(44));
-  Mock::VerifyAndClearExpectations(&obs);
-
-  // Check that hidden underlay change is not reported.
-  EXPECT_CALL(obs, OnPrefValueChanged(StrEq(key))).Times(0);
-  underlay_->SetValue(key, Value::CreateIntegerValue(45));
-  Mock::VerifyAndClearExpectations(&obs);
-
-  // Check that overlay remove is reported.
-  EXPECT_CALL(obs, OnPrefValueChanged(StrEq(key))).Times(1);
-  overlay_->RemoveValue(key);
-  Mock::VerifyAndClearExpectations(&obs);
-
-  // Check that underlay remove is reported.
-  EXPECT_CALL(obs, OnPrefValueChanged(StrEq(key))).Times(1);
-  underlay_->RemoveValue(key);
-  Mock::VerifyAndClearExpectations(&obs);
-
-  // Check respecting of silence.
-  EXPECT_CALL(obs, OnPrefValueChanged(StrEq(key))).Times(0);
-  overlay_->SetValueSilently(key, Value::CreateIntegerValue(46));
-  Mock::VerifyAndClearExpectations(&obs);
-
-  overlay_->RemoveObserver(&obs);
-
-  // Check successful unsubscription.
-  EXPECT_CALL(obs, OnPrefValueChanged(StrEq(key))).Times(0);
-  underlay_->SetValue(key, Value::CreateIntegerValue(47));
-  overlay_->SetValue(key, Value::CreateIntegerValue(48));
-  Mock::VerifyAndClearExpectations(&obs);
-}
-
-TEST_F(OverlayPersistentPrefStoreTest, GetAndSet) {
-  const Value* value = NULL;
-  int i = -1;
-  EXPECT_EQ(PrefStore::READ_NO_VALUE, overlay_->GetValue(key, &value));
-  EXPECT_EQ(PrefStore::READ_NO_VALUE, underlay_->GetValue(key, &value));
-
-  underlay_->SetValue(key, Value::CreateIntegerValue(42));
-
-  // Value shines through:
-  EXPECT_EQ(PrefStore::READ_OK, overlay_->GetValue(key, &value));
-  ASSERT_TRUE(value);
-  EXPECT_TRUE(value->GetAsInteger(&i));
-  EXPECT_EQ(42, i);
-
-  EXPECT_EQ(PrefStore::READ_OK, underlay_->GetValue(key, &value));
-  ASSERT_TRUE(value);
-  EXPECT_TRUE(value->GetAsInteger(&i));
-  EXPECT_EQ(42, i);
-
-  overlay_->SetValue(key, Value::CreateIntegerValue(43));
-
-  EXPECT_EQ(PrefStore::READ_OK, overlay_->GetValue(key, &value));
-  ASSERT_TRUE(value);
-  EXPECT_TRUE(value->GetAsInteger(&i));
-  EXPECT_EQ(43, i);
-
-  EXPECT_EQ(PrefStore::READ_OK, underlay_->GetValue(key, &value));
-  ASSERT_TRUE(value);
-  EXPECT_TRUE(value->GetAsInteger(&i));
-  EXPECT_EQ(42, i);
-
-  overlay_->RemoveValue(key);
-
-  // Value shines through:
-  EXPECT_EQ(PrefStore::READ_OK, overlay_->GetValue(key, &value));
-  ASSERT_TRUE(value);
-  EXPECT_TRUE(value->GetAsInteger(&i));
-  EXPECT_EQ(42, i);
-
-  EXPECT_EQ(PrefStore::READ_OK, underlay_->GetValue(key, &value));
-  ASSERT_TRUE(value);
-  EXPECT_TRUE(value->GetAsInteger(&i));
-  EXPECT_EQ(42, i);
-}
-
-// Check that GetMutableValue does not return the dictionary of the underlay.
-TEST_F(OverlayPersistentPrefStoreTest, ModifyDictionaries) {
-  underlay_->SetValue(key, new DictionaryValue);
-
-  Value* modify = NULL;
-  EXPECT_EQ(PrefStore::READ_OK, overlay_->GetMutableValue(key, &modify));
-  ASSERT_TRUE(modify);
-  ASSERT_TRUE(modify->GetType() == Value::TYPE_DICTIONARY);
-  static_cast<DictionaryValue*>(modify)->SetInteger(key, 42);
-
-  Value* original_in_underlay = NULL;
-  EXPECT_EQ(PrefStore::READ_OK,
-            underlay_->GetMutableValue(key, &original_in_underlay));
-  ASSERT_TRUE(original_in_underlay);
-  ASSERT_TRUE(original_in_underlay->GetType() == Value::TYPE_DICTIONARY);
-  EXPECT_TRUE(static_cast<DictionaryValue*>(original_in_underlay)->empty());
-
-  Value* modified = NULL;
-  EXPECT_EQ(PrefStore::READ_OK, overlay_->GetMutableValue(key, &modified));
-  ASSERT_TRUE(modified);
-  ASSERT_TRUE(modified->GetType() == Value::TYPE_DICTIONARY);
-  EXPECT_TRUE(Value::Equals(modify, static_cast<DictionaryValue*>(modified)));
-}