chrome/browser/sync/glue/browser_thread_model_worker_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/bind.h"
   6 #include "base/callback.h"
   7 #include "base/location.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "base/message_loop/message_loop.h"
  11 #include "base/single_thread_task_runner.h"
  12 #include "base/test/test_timeouts.h"
  13 #include "base/thread_task_runner_handle.h"
  14 #include "base/threading/thread.h"
  15 #include "base/timer/timer.h"
  16 #include "components/sync_driver/glue/browser_thread_model_worker.h"
  17 #include "content/public/browser/browser_thread.h"
  18 #include "content/public/test/test_browser_thread_bundle.h"
  19 #include "testing/gtest/include/gtest/gtest.h"
  20
  21 using base::OneShotTimer;
  22 using base::Thread;
  23 using base::TimeDelta;
  24 using content::BrowserThread;
  25
  26 namespace browser_sync {
  27
  28 namespace {
  29
  30 class SyncBrowserThreadModelWorkerTest : public testing::Test {
  31  public:
  32   SyncBrowserThreadModelWorkerTest() :
  33       did_do_work_(false),
  34       thread_bundle_(content::TestBrowserThreadBundle::IO_MAINLOOP |
  35                      content::TestBrowserThreadBundle::REAL_DB_THREAD),
  36       weak_factory_(this) {}
  37
  38   bool did_do_work() { return did_do_work_; }
  39   BrowserThreadModelWorker* worker() { return worker_.get(); }
  40   OneShotTimer<SyncBrowserThreadModelWorkerTest>* timer() { return &timer_; }
  41   base::WeakPtrFactory<SyncBrowserThreadModelWorkerTest>* factory() {
  42     return &weak_factory_;
  43   }
  44
  45   // Schedule DoWork to be executed on the DB thread and have the test fail if
  46   // DoWork hasn't executed within action_timeout().
  47   void ScheduleWork() {
  48    // We wait until the callback is done. So it is safe to use unretained.
  49     syncer::WorkCallback c =
  50         base::Bind(&SyncBrowserThreadModelWorkerTest::DoWork,
  51                    base::Unretained(this));
  52     timer()->Start(
  53         FROM_HERE,
  54         TestTimeouts::action_timeout(),
  55         this,
  56         &SyncBrowserThreadModelWorkerTest::Timeout);
  57     worker()->DoWorkAndWaitUntilDone(c);
  58   }
  59
  60   // This is the work that will be scheduled to be done on the DB thread.
  61   syncer::SyncerError DoWork() {
  62     EXPECT_TRUE(BrowserThread::CurrentlyOn(BrowserThread::DB));
  63     timer_.Stop();  // Stop the failure timer so the test succeeds.
  64     BrowserThread::PostTask(
  65         BrowserThread::IO, FROM_HERE, base::MessageLoop::QuitClosure());
  66     did_do_work_ = true;
  67     return syncer::SYNCER_OK;
  68   }
  69
  70   // This will be called by the OneShotTimer and make the test fail unless
  71   // DoWork is called first.
  72   void Timeout() {
  73     ADD_FAILURE() << "Timed out waiting for work to be done on the DB thread.";
  74     BrowserThread::PostTask(
  75         BrowserThread::IO, FROM_HERE, base::MessageLoop::QuitClosure());
  76   }
  77
  78  protected:
  79   void SetUp() override {
  80     worker_ = new BrowserThreadModelWorker(
  81         BrowserThread::GetMessageLoopProxyForThread(BrowserThread::DB),
  82         syncer::GROUP_DB, NULL);
  83   }
  84
  85   virtual void Teardown() {
  86     worker_ = NULL;
  87   }
  88
  89  private:
  90   bool did_do_work_;
  91   scoped_refptr<BrowserThreadModelWorker> worker_;
  92   OneShotTimer<SyncBrowserThreadModelWorkerTest> timer_;
  93
  94   content::TestBrowserThreadBundle thread_bundle_;
  95
  96   base::WeakPtrFactory<SyncBrowserThreadModelWorkerTest> weak_factory_;
  97 };
  98
  99 TEST_F(SyncBrowserThreadModelWorkerTest, DoesWorkOnDatabaseThread) {
 100   base::ThreadTaskRunnerHandle::Get()->PostTask(
 101       FROM_HERE, base::Bind(&SyncBrowserThreadModelWorkerTest::ScheduleWork,
 102                             factory()->GetWeakPtr()));
 103   base::MessageLoop::current()->Run();
 104   EXPECT_TRUE(did_do_work());
 105 }
 106
 107 }  // namespace
 108
 109 }  // namespace browser_sync