atomic_hook_test.cc
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1 // Copyright 2018 The Abseil Authors.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
16 
17 #include "gtest/gtest.h"
18 #include "absl/base/attributes.h"
19 
20 namespace {
21 
22 int value = 0;
23 void TestHook(int x) { value = x; }
24 
25 TEST(AtomicHookTest, NoDefaultFunction) {
27  value = 0;
28 
29  // Test the default DummyFunction.
30  EXPECT_TRUE(hook.Load() == nullptr);
31  EXPECT_EQ(value, 0);
32  hook(1);
33  EXPECT_EQ(value, 0);
34 
35  // Test a stored hook.
36  hook.Store(TestHook);
37  EXPECT_TRUE(hook.Load() == TestHook);
38  EXPECT_EQ(value, 0);
39  hook(1);
40  EXPECT_EQ(value, 1);
41 
42  // Calling Store() with the same hook should not crash.
43  hook.Store(TestHook);
44  EXPECT_TRUE(hook.Load() == TestHook);
45  EXPECT_EQ(value, 1);
46  hook(2);
47  EXPECT_EQ(value, 2);
48 }
49 
50 TEST(AtomicHookTest, WithDefaultFunction) {
51  // Set the default value to TestHook at compile-time.
53  TestHook);
54  value = 0;
55 
56  // Test the default value is TestHook.
57  EXPECT_TRUE(hook.Load() == TestHook);
58  EXPECT_EQ(value, 0);
59  hook(1);
60  EXPECT_EQ(value, 1);
61 
62  // Calling Store() with the same hook should not crash.
63  hook.Store(TestHook);
64  EXPECT_TRUE(hook.Load() == TestHook);
65  EXPECT_EQ(value, 1);
66  hook(2);
67  EXPECT_EQ(value, 2);
68 }
69 
70 } // namespace
#define ABSL_CONST_INIT
Definition: attributes.h:605
size_t value
TEST(Symbolize, Unimplemented)


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autogenerated on Tue Jun 18 2019 19:44:35