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Side by Side Diff: mojo/public/cpp/utility/tests/thread_unittest.cc

Issue 814543006: Move //mojo/{public, edk} underneath //third_party (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebase Created 5 years, 11 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "mojo/public/cpp/utility/thread.h"
6
7 #include "mojo/public/cpp/system/macros.h"
8 #include "testing/gtest/include/gtest/gtest.h"
9
10 namespace mojo {
11 namespace {
12
13 class SetIntThread : public Thread {
14 public:
15 SetIntThread(int* int_to_set, int value)
16 : int_to_set_(int_to_set),
17 value_(value) {
18 }
19 SetIntThread(const Options& options, int* int_to_set, int value)
20 : Thread(options),
21 int_to_set_(int_to_set),
22 value_(value) {
23 }
24
25 ~SetIntThread() override {}
26
27 void Run() override { *int_to_set_ = value_; }
28
29 private:
30 int* const int_to_set_;
31 const int value_;
32
33 MOJO_DISALLOW_COPY_AND_ASSIGN(SetIntThread);
34 };
35
36 TEST(ThreadTest, CreateAndJoin) {
37 int value = 0;
38
39 // Not starting the thread should result in a no-op.
40 {
41 SetIntThread thread(&value, 1234567);
42 }
43 EXPECT_EQ(0, value);
44
45 // Start and join.
46 {
47 SetIntThread thread(&value, 12345678);
48 thread.Start();
49 thread.Join();
50 EXPECT_EQ(12345678, value);
51 }
52
53 // Ditto, with non-default (but reasonable) stack size.
54 {
55 Thread::Options options;
56 options.set_stack_size(1024 * 1024); // 1 MB.
57 SetIntThread thread(options, &value, 12345678);
58 thread.Start();
59 thread.Join();
60 EXPECT_EQ(12345678, value);
61 }
62 }
63
64 // Tests of assertions for Debug builds.
65 // Note: It's okay to create threads, despite gtest having to fork. (The threads
66 // are in the child process.)
67 #if !defined(NDEBUG)
68 TEST(ThreadTest, DebugAssertionFailures) {
69 // Can only start once.
70 EXPECT_DEATH_IF_SUPPORTED({
71 int value = 0;
72 SetIntThread thread(&value, 1);
73 thread.Start();
74 thread.Start();
75 }, "");
76
77 // Must join (if you start).
78 EXPECT_DEATH_IF_SUPPORTED({
79 int value = 0;
80 SetIntThread thread(&value, 2);
81 thread.Start();
82 }, "");
83
84 // Can only join once.
85 EXPECT_DEATH_IF_SUPPORTED({
86 int value = 0;
87 SetIntThread thread(&value, 3);
88 thread.Start();
89 thread.Join();
90 thread.Join();
91 }, "");
92
93 // Stack too big (we're making certain assumptions here).
94 EXPECT_DEATH_IF_SUPPORTED({
95 int value = 0;
96 Thread::Options options;
97 options.set_stack_size(static_cast<size_t>(-1));
98 SetIntThread thread(options, &value, 4);
99 thread.Start();
100 thread.Join();
101 }, "");
102 }
103 #endif // !defined(NDEBUG)
104
105 } // namespace
106 } // namespace mojo
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