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