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// Copyright (c) 2006-2008 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/at_exit.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
// Don't test the global AtExitManager, because asking it to process its
// AtExit callbacks can ruin the global state that other tests may depend on.
class ShadowingAtExitManager : public base::AtExitManager {
public:
ShadowingAtExitManager() : AtExitManager(true) {}
};
int g_test_counter_1 = 0;
int g_test_counter_2 = 0;
void IncrementTestCounter1() {
++g_test_counter_1;
}
void IncrementTestCounter2() {
++g_test_counter_2;
}
void ZeroTestCounters() {
g_test_counter_1 = 0;
g_test_counter_2 = 0;
}
void ExpectCounter1IsZero() {
EXPECT_EQ(0, g_test_counter_1);
}
} // namespace
TEST(AtExitTest, Basic) {
ShadowingAtExitManager shadowing_at_exit_manager;
ZeroTestCounters();
base::AtExitManager::RegisterCallback(&IncrementTestCounter1);
base::AtExitManager::RegisterCallback(&IncrementTestCounter2);
base::AtExitManager::RegisterCallback(&IncrementTestCounter1);
EXPECT_EQ(0, g_test_counter_1);
EXPECT_EQ(0, g_test_counter_2);
base::AtExitManager::ProcessCallbacksNow();
EXPECT_EQ(2, g_test_counter_1);
EXPECT_EQ(1, g_test_counter_2);
}
TEST(AtExitTest, LIFOOrder) {
ShadowingAtExitManager shadowing_at_exit_manager;
ZeroTestCounters();
base::AtExitManager::RegisterCallback(&IncrementTestCounter1);
base::AtExitManager::RegisterCallback(&ExpectCounter1IsZero);
base::AtExitManager::RegisterCallback(&IncrementTestCounter2);
EXPECT_EQ(0, g_test_counter_1);
EXPECT_EQ(0, g_test_counter_2);
base::AtExitManager::ProcessCallbacksNow();
EXPECT_EQ(1, g_test_counter_1);
EXPECT_EQ(1, g_test_counter_2);
}
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