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121 lines
3.2 KiB
121 lines
3.2 KiB
/*
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* Copyright 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "common/observer_registry.h"
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#include "common/bind.h"
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#include "gtest/gtest.h"
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namespace bluetooth {
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namespace common {
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class SingleObserverRegistryTest : public ::testing::Test {
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protected:
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void SetUp() override {
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registry_ = new SingleObserverRegistry;
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}
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void TearDown() override {
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delete registry_;
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}
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SingleObserverRegistry* registry_;
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};
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void Increment(int* count) {
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(*count)++;
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}
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void IncrementBy(int* count, int n) {
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(*count) += n;
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}
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TEST_F(SingleObserverRegistryTest, wrapped_callback) {
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int count = 0;
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auto wrapped_callback = registry_->Register(Bind(&Increment, Unretained(&count)));
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wrapped_callback.Run();
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EXPECT_EQ(count, 1);
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wrapped_callback.Run();
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EXPECT_EQ(count, 2);
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wrapped_callback.Run();
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EXPECT_EQ(count, 3);
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registry_->Unregister();
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}
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TEST_F(SingleObserverRegistryTest, unregister) {
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int count = 0;
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auto wrapped_callback = registry_->Register(Bind(&Increment, Unretained(&count)));
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registry_->Unregister();
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wrapped_callback.Run();
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EXPECT_EQ(count, 0);
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}
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TEST_F(SingleObserverRegistryTest, second_register) {
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int count = 0;
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auto wrapped_callback = registry_->Register(Bind(&Increment, Unretained(&count)));
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registry_->Unregister();
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auto wrapped_callback2 = registry_->Register(Bind(&Increment, Unretained(&count)));
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wrapped_callback.Run();
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EXPECT_EQ(count, 0);
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wrapped_callback2.Run();
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EXPECT_EQ(count, 1);
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}
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class MultipleObserverRegistryTest : public ::testing::Test {
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protected:
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void SetUp() override {
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registry_ = new MultipleObserverRegistry<2>;
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}
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void TearDown() override {
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delete registry_;
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}
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MultipleObserverRegistry<2>* registry_;
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};
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TEST_F(MultipleObserverRegistryTest, single_wrapped_callback) {
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int count = 0;
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auto wrapped_callback = registry_->Register(0, Bind(&Increment, Unretained(&count)));
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wrapped_callback.Run();
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EXPECT_EQ(count, 1);
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wrapped_callback.Run();
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EXPECT_EQ(count, 2);
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wrapped_callback.Run();
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EXPECT_EQ(count, 3);
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registry_->Unregister(0);
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}
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TEST_F(MultipleObserverRegistryTest, multiple_wrapped_callback) {
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int count = 0;
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auto wrapped_callback0 = registry_->Register(0, Bind(&Increment, Unretained(&count)));
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auto wrapped_callback1 = registry_->Register(1, Bind(&IncrementBy, Unretained(&count), 10));
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wrapped_callback0.Run();
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EXPECT_EQ(count, 1);
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wrapped_callback1.Run();
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EXPECT_EQ(count, 11);
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registry_->Unregister(0);
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wrapped_callback0.Run();
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EXPECT_EQ(count, 11);
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wrapped_callback1.Run();
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EXPECT_EQ(count, 21);
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registry_->Unregister(1);
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EXPECT_EQ(count, 21);
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}
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} // namespace common
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} // namespace bluetooth
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