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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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