base/message_loop_proxy_impl_unittest.cc

   1 // Copyright (c) 2012 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 "base/message_loop_proxy_impl.h"
   6
   7 #include "base/bind.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/message_loop.h"
  10 #include "base/message_loop_proxy.h"
  11 #include "base/threading/thread.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13 #include "testing/platform_test.h"
  14
  15
  16 class MessageLoopProxyImplTest : public testing::Test {
  17  public:
  18   void Release() const {
  19     AssertOnIOThread();
  20     Quit();
  21   }
  22
  23   void Quit() const {
  24     loop_.PostTask(FROM_HERE, MessageLoop::QuitWhenIdleClosure());
  25   }
  26
  27   void AssertOnIOThread() const {
  28     ASSERT_TRUE(io_thread_->message_loop_proxy()->BelongsToCurrentThread());
  29     ASSERT_EQ(io_thread_->message_loop_proxy(),
  30               base::MessageLoopProxy::current());
  31   }
  32
  33   void AssertOnFileThread() const {
  34     ASSERT_TRUE(file_thread_->message_loop_proxy()->BelongsToCurrentThread());
  35     ASSERT_EQ(file_thread_->message_loop_proxy(),
  36               base::MessageLoopProxy::current());
  37   }
  38
  39  protected:
  40   virtual void SetUp() OVERRIDE {
  41     io_thread_.reset(new base::Thread("MessageLoopProxyImplTest_IO"));
  42     file_thread_.reset(new base::Thread("MessageLoopProxyImplTest_File"));
  43     io_thread_->Start();
  44     file_thread_->Start();
  45   }
  46
  47   virtual void TearDown() OVERRIDE {
  48     io_thread_->Stop();
  49     file_thread_->Stop();
  50   }
  51
  52   static void BasicFunction(MessageLoopProxyImplTest* test) {
  53     test->AssertOnFileThread();
  54     test->Quit();
  55   }
  56
  57   static void AssertNotRun() {
  58     FAIL() << "Callback Should not get executed.";
  59   }
  60
  61   class DeletedOnFile {
  62    public:
  63     explicit DeletedOnFile(MessageLoopProxyImplTest* test) : test_(test) {}
  64
  65     ~DeletedOnFile() {
  66       test_->AssertOnFileThread();
  67       test_->Quit();
  68     }
  69
  70    private:
  71     MessageLoopProxyImplTest* test_;
  72   };
  73
  74   scoped_ptr<base::Thread> io_thread_;
  75   scoped_ptr<base::Thread> file_thread_;
  76
  77  private:
  78   mutable MessageLoop loop_;
  79 };
  80
  81 TEST_F(MessageLoopProxyImplTest, Release) {
  82   EXPECT_TRUE(io_thread_->message_loop_proxy()->ReleaseSoon(FROM_HERE, this));
  83   MessageLoop::current()->Run();
  84 }
  85
  86 TEST_F(MessageLoopProxyImplTest, Delete) {
  87   DeletedOnFile* deleted_on_file = new DeletedOnFile(this);
  88   EXPECT_TRUE(file_thread_->message_loop_proxy()->DeleteSoon(
  89       FROM_HERE, deleted_on_file));
  90   MessageLoop::current()->Run();
  91 }
  92
  93 TEST_F(MessageLoopProxyImplTest, PostTask) {
  94   EXPECT_TRUE(file_thread_->message_loop_proxy()->PostTask(
  95       FROM_HERE, base::Bind(&MessageLoopProxyImplTest::BasicFunction,
  96                             base::Unretained(this))));
  97   MessageLoop::current()->Run();
  98 }
  99
 100 TEST_F(MessageLoopProxyImplTest, PostTaskAfterThreadExits) {
 101   scoped_ptr<base::Thread> test_thread(
 102       new base::Thread("MessageLoopProxyImplTest_Dummy"));
 103   test_thread->Start();
 104   scoped_refptr<base::MessageLoopProxy> message_loop_proxy =
 105       test_thread->message_loop_proxy();
 106   test_thread->Stop();
 107
 108   bool ret = message_loop_proxy->PostTask(
 109       FROM_HERE,
 110       base::Bind(&MessageLoopProxyImplTest::AssertNotRun));
 111   EXPECT_FALSE(ret);
 112 }
 113
 114 TEST_F(MessageLoopProxyImplTest, PostTaskAfterThreadIsDeleted) {
 115   scoped_refptr<base::MessageLoopProxy> message_loop_proxy;
 116   {
 117     scoped_ptr<base::Thread> test_thread(
 118         new base::Thread("MessageLoopProxyImplTest_Dummy"));
 119     test_thread->Start();
 120     message_loop_proxy = test_thread->message_loop_proxy();
 121   }
 122   bool ret = message_loop_proxy->PostTask(
 123       FROM_HERE,
 124       base::Bind(&MessageLoopProxyImplTest::AssertNotRun));
 125   EXPECT_FALSE(ret);
 126 }