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// Copyright 2016 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 "components/prefs/in_memory_pref_store.h"
#include "base/memory/ptr_util.h"
#include "base/values.h"
#include "components/prefs/pref_store_observer_mock.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
const char kTestPref[] = "test.pref";
class InMemoryPrefStoreTest : public testing::Test {
public:
InMemoryPrefStoreTest() { }
void SetUp() override { store_ = new InMemoryPrefStore(); }
protected:
scoped_refptr<InMemoryPrefStore> store_;
PrefStoreObserverMock observer_;
};
TEST_F(InMemoryPrefStoreTest, SetGetValue) {
const base::Value* value = NULL;
base::Value* mutable_value = NULL;
EXPECT_FALSE(store_->GetValue(kTestPref, &value));
EXPECT_FALSE(store_->GetMutableValue(kTestPref, &mutable_value));
store_->SetValue(kTestPref, base::MakeUnique<base::FundamentalValue>(42),
WriteablePrefStore::DEFAULT_PREF_WRITE_FLAGS);
EXPECT_TRUE(store_->GetValue(kTestPref, &value));
EXPECT_TRUE(base::FundamentalValue(42).Equals(value));
EXPECT_TRUE(store_->GetMutableValue(kTestPref, &mutable_value));
EXPECT_TRUE(base::FundamentalValue(42).Equals(mutable_value));
store_->RemoveValue(kTestPref, WriteablePrefStore::DEFAULT_PREF_WRITE_FLAGS);
EXPECT_FALSE(store_->GetValue(kTestPref, &value));
EXPECT_FALSE(store_->GetMutableValue(kTestPref, &mutable_value));
}
TEST_F(InMemoryPrefStoreTest, GetSetObserver) {
// Starts with no observers.
EXPECT_FALSE(store_->HasObservers());
// Add one.
store_->AddObserver(&observer_);
EXPECT_TRUE(store_->HasObservers());
// Remove only observer.
store_->RemoveObserver(&observer_);
EXPECT_FALSE(store_->HasObservers());
}
TEST_F(InMemoryPrefStoreTest, CallObserver) {
// With observer included.
store_->AddObserver(&observer_);
// Triggers on SetValue.
store_->SetValue(kTestPref, base::MakeUnique<base::FundamentalValue>(42),
WriteablePrefStore::DEFAULT_PREF_WRITE_FLAGS);
observer_.VerifyAndResetChangedKey(kTestPref);
// And RemoveValue.
store_->RemoveValue(kTestPref, WriteablePrefStore::DEFAULT_PREF_WRITE_FLAGS);
observer_.VerifyAndResetChangedKey(kTestPref);
// But not SetValueSilently.
store_->SetValueSilently(kTestPref,
base::MakeUnique<base::FundamentalValue>(42),
WriteablePrefStore::DEFAULT_PREF_WRITE_FLAGS);
EXPECT_EQ(0u, observer_.changed_keys.size());
// On multiple RemoveValues only the first one triggers observer.
store_->RemoveValue(kTestPref, WriteablePrefStore::DEFAULT_PREF_WRITE_FLAGS);
observer_.VerifyAndResetChangedKey(kTestPref);
store_->RemoveValue(kTestPref, WriteablePrefStore::DEFAULT_PREF_WRITE_FLAGS);
EXPECT_EQ(0u, observer_.changed_keys.size());
// Doesn't make call on removed observers.
store_->RemoveObserver(&observer_);
store_->SetValue(kTestPref, base::MakeUnique<base::FundamentalValue>(42),
WriteablePrefStore::DEFAULT_PREF_WRITE_FLAGS);
store_->RemoveValue(kTestPref, WriteablePrefStore::DEFAULT_PREF_WRITE_FLAGS);
EXPECT_EQ(0u, observer_.changed_keys.size());
}
TEST_F(InMemoryPrefStoreTest, Initialization) {
EXPECT_TRUE(store_->IsInitializationComplete());
}
TEST_F(InMemoryPrefStoreTest, ReadOnly) {
EXPECT_FALSE(store_->ReadOnly());
}
TEST_F(InMemoryPrefStoreTest, GetReadError) {
EXPECT_EQ(PersistentPrefStore::PREF_READ_ERROR_NONE, store_->GetReadError());
}
TEST_F(InMemoryPrefStoreTest, ReadPrefs) {
EXPECT_EQ(PersistentPrefStore::PREF_READ_ERROR_NONE, store_->ReadPrefs());
}
} // namespace
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