111 lines
2.3 KiB
C++
111 lines
2.3 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#include <gtest/gtest.h>
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#include "lib/utility/ob_defer.h"
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using namespace std;
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using namespace oceanbase;
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using namespace oceanbase::common;
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TEST(ScopedLambda, Basic) {
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bool mybool = false;
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{
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auto exec = MakeScopedLambda([&]() { mybool = true; }); // NOLINT
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EXPECT_FALSE(mybool);
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}
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EXPECT_TRUE(mybool);
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mybool = false;
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{
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auto exec = MakeScopedLambda([&]() { mybool = true; }); // NOLINT
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EXPECT_FALSE(mybool);
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exec.deactivate();
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}
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EXPECT_FALSE(mybool);
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mybool = false;
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{
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auto exec = MakeScopedLambda([&]() { mybool = true; }); // NOLINT
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EXPECT_FALSE(mybool);
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exec.deactivate();
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exec.activate();
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}
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EXPECT_TRUE(mybool);
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int counter = 0;
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{
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auto exec = MakeScopedLambda([&]() { ++counter; }); // NOLINT
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EXPECT_EQ(0, counter);
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exec.run_and_expire();
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EXPECT_EQ(1, counter);
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}
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EXPECT_EQ(1, counter); // should not have executed upon scope exit.
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}
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TEST(ScopedLambda, Defer) {
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bool mybool = false;
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{
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DEFER(mybool = true);
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EXPECT_FALSE(mybool);
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}
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EXPECT_TRUE(mybool);
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mybool = false;
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{
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NAMED_DEFER(exec, mybool = true);
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EXPECT_FALSE(mybool);
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exec.deactivate();
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}
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EXPECT_FALSE(mybool);
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mybool = false;
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{
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NAMED_DEFER(exec, mybool = true);
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EXPECT_FALSE(mybool);
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exec.deactivate();
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exec.activate();
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}
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EXPECT_TRUE(mybool);
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int counter = 0;
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{
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NAMED_DEFER(exec, ++counter);
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EXPECT_EQ(0, counter);
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exec.run_and_expire();
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EXPECT_EQ(1, counter);
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}
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EXPECT_EQ(1, counter); // should not have executed upon scope exit.
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}
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TEST(Defer, InitializerLists) {
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struct S {
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int a;
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int b;
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};
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int x = 10;
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{
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DEFER({
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S s{10, 20};
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x = s.b;
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});
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}
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EXPECT_EQ(20, x);
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}
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int main(int argc, char **argv)
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{
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testing::InitGoogleTest(&argc,argv);
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return RUN_ALL_TESTS();
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}
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