sync/internal_api/attachments/attachment_service_proxy_for_test.cc

   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 "sync/internal_api/public/attachments/attachment_service_proxy_for_test.h"
   6
   7 #include "base/message_loop/message_loop.h"
   8 #include "base/thread_task_runner_handle.h"
   9 #include "sync/internal_api/public/attachments/attachment_service_impl.h"
  10
  11 namespace syncer {
  12
  13 AttachmentServiceProxyForTest::OwningCore::OwningCore(
  14     scoped_ptr<AttachmentService> wrapped,
  15     scoped_ptr<base::WeakPtrFactory<AttachmentService> > weak_ptr_factory)
  16     : Core(weak_ptr_factory->GetWeakPtr()),
  17       wrapped_(wrapped.Pass()),
  18       weak_ptr_factory_(weak_ptr_factory.Pass()) {
  19   DCHECK(wrapped_);
  20 }
  21
  22 AttachmentServiceProxyForTest::OwningCore::~OwningCore() {
  23 }
  24
  25 // Static.
  26 AttachmentServiceProxy AttachmentServiceProxyForTest::Create() {
  27   scoped_ptr<AttachmentService> wrapped(AttachmentServiceImpl::CreateForTest());
  28   // This class's base class, AttachmentServiceProxy, must be initialized with a
  29   // WeakPtr to an AttachmentService.  Because the base class ctor must be
  30   // invoked before any of this class's members are initialized, we create the
  31   // WeakPtrFactory here and pass it to the ctor so that it may initialize its
  32   // base class and own the WeakPtrFactory.
  33   //
  34   // We must pass by scoped_ptr because WeakPtrFactory has no copy constructor.
  35   scoped_ptr<base::WeakPtrFactory<AttachmentService> > weak_ptr_factory(
  36       new base::WeakPtrFactory<AttachmentService>(wrapped.get()));
  37
  38   scoped_refptr<Core> core_for_test(
  39       new OwningCore(wrapped.Pass(), weak_ptr_factory.Pass()));
  40
  41   scoped_refptr<base::SequencedTaskRunner> runner;
  42   if (base::ThreadTaskRunnerHandle::IsSet()) {
  43     runner = base::ThreadTaskRunnerHandle::Get();
  44   } else {
  45     // Dummy runner for tests that don't have MessageLoop.
  46     DVLOG(1) << "Creating dummy MessageLoop for AttachmentServiceProxy.";
  47     base::MessageLoop loop;
  48     // This works because |runner| takes a ref to the proxy.
  49     runner = base::ThreadTaskRunnerHandle::Get();
  50   }
  51   return AttachmentServiceProxyForTest(runner, core_for_test);
  52 }
  53
  54 AttachmentServiceProxyForTest::~AttachmentServiceProxyForTest() {
  55 }
  56
  57 AttachmentServiceProxyForTest::AttachmentServiceProxyForTest(
  58     const scoped_refptr<base::SequencedTaskRunner>& wrapped_task_runner,
  59     const scoped_refptr<Core>& core)
  60     : AttachmentServiceProxy(wrapped_task_runner, core) {
  61 }
  62
  63 }  // namespace syncer