DCHECK tasks posted by TaskRunner::PostTask

base/task_scheduler/priority_queue_unittest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/task_scheduler/priority_queue.h"
 
 #include <memory>
 
+#include "base/bind.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/task_scheduler/sequence.h"
 #include "base/task_scheduler/task.h"
 #include "base/task_scheduler/task_traits.h"
 #include "base/test/gtest_util.h"
 #include "base/threading/platform_thread.h"
 #include "base/threading/simple_thread.h"
@@ skipping 33 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(ThreadBeginningTransaction);
 };
 
 }  // namespace
 
 TEST(TaskSchedulerPriorityQueueTest, PushPopPeek) {
   // Create test sequences.
   scoped_refptr<Sequence> sequence_a(new Sequence);
   sequence_a->PushTask(MakeUnique<Task>(
-      FROM_HERE, Closure(),
+      FROM_HERE, Bind([] {}),

[gab, 2017/04/03 17:06:17]

Use DoNothing() from bind_helpers.h instead for all of these

[tzik, 2017/04/04 11:36:26]

Done.

       TaskTraits().WithPriority(TaskPriority::USER_VISIBLE), TimeDelta()));
   SequenceSortKey sort_key_a = sequence_a->GetSortKey();
 
   scoped_refptr<Sequence> sequence_b(new Sequence);
   sequence_b->PushTask(MakeUnique<Task>(
-      FROM_HERE, Closure(),
+      FROM_HERE, Bind([] {}),
       TaskTraits().WithPriority(TaskPriority::USER_BLOCKING), TimeDelta()));
   SequenceSortKey sort_key_b = sequence_b->GetSortKey();
 
   scoped_refptr<Sequence> sequence_c(new Sequence);
   sequence_c->PushTask(MakeUnique<Task>(
-      FROM_HERE, Closure(),
+      FROM_HERE, Bind([] {}),
       TaskTraits().WithPriority(TaskPriority::USER_BLOCKING), TimeDelta()));
   SequenceSortKey sort_key_c = sequence_c->GetSortKey();
 
   scoped_refptr<Sequence> sequence_d(new Sequence);
   sequence_d->PushTask(MakeUnique<Task>(
-      FROM_HERE, Closure(), TaskTraits().WithPriority(TaskPriority::BACKGROUND),
-      TimeDelta()));
+      FROM_HERE, Bind([] {}),
+      TaskTraits().WithPriority(TaskPriority::BACKGROUND), TimeDelta()));
   SequenceSortKey sort_key_d = sequence_d->GetSortKey();
 
   // Create a PriorityQueue and a Transaction.
   PriorityQueue pq;
   auto transaction(pq.BeginTransaction());
   EXPECT_TRUE(transaction->IsEmpty());
 
   // Push |sequence_a| in the PriorityQueue. It becomes the sequence with the
   // highest priority.
   transaction->Push(sequence_a, sort_key_a);
@@ skipping 70 matching lines @@
 
   // End the Transaction on the current thread.
   transaction.reset();
 
   // The other thread should exit after its call to BeginTransaction() returns.
   thread_beginning_transaction.Join();
 }
 
 }  // namespace internal
 }  // namespace base