b77035b89a
This change lets android::base::ScopeGuard be useful in STL containers (e.g. std::vector<android::base::ScopeGuard<std::function<void()>>>). It also provides perfect forwarding for android::base::make_scope_guard. Bug: 34764308 Test: libbase_test Change-Id: I7d1e5494b0f0695763cff0700efdb9ec18ae85c8
59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
/*
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* Copyright (C) 2017 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 "android-base/scopeguard.h"
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#include <utility>
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#include <vector>
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#include <gtest/gtest.h>
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TEST(scopeguard, normal) {
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bool guarded_var = true;
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{
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auto scopeguard = android::base::make_scope_guard([&guarded_var] { guarded_var = false; });
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}
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ASSERT_FALSE(guarded_var);
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}
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TEST(scopeguard, disabled) {
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bool guarded_var = true;
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{
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auto scopeguard = android::base::make_scope_guard([&guarded_var] { guarded_var = false; });
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scopeguard.Disable();
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}
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ASSERT_TRUE(guarded_var);
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}
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TEST(scopeguard, moved) {
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int guarded_var = true;
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auto scopeguard = android::base::make_scope_guard([&guarded_var] { guarded_var = false; });
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{ decltype(scopeguard) new_guard(std::move(scopeguard)); }
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EXPECT_FALSE(scopeguard.active());
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ASSERT_FALSE(guarded_var);
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}
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TEST(scopeguard, vector) {
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int guarded_var = 0;
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{
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std::vector<android::base::ScopeGuard<std::function<void()>>> scopeguards;
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scopeguards.emplace_back(android::base::make_scope_guard(
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std::bind([](int& guarded_var) { guarded_var++; }, std::ref(guarded_var))));
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scopeguards.emplace_back(android::base::make_scope_guard(
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std::bind([](int& guarded_var) { guarded_var++; }, std::ref(guarded_var))));
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}
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ASSERT_EQ(guarded_var, 2);
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}
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