TaskTraits and tuple.

base/task_scheduler/task_traits_unittest.cc

 // Copyright 2017 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/task_traits.h"
 
+#include <tuple>
+
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 
+TEST(TaskSchedulerTaskTraitsTest, Tuple) {
+  std::tuple<TaskTraits> tuple;
+  std::tuple<TaskTraits> other_tuple = tuple;
+  EXPECT_FALSE(std::get<0>(other_tuple).priority_set_explicitly());
+}
+
 TEST(TaskSchedulerTaskTraitsTest, Default) {
   constexpr TaskTraits traits = {};
   EXPECT_FALSE(traits.priority_set_explicitly());
   EXPECT_EQ(TaskPriority::USER_VISIBLE, traits.priority());
   EXPECT_EQ(TaskShutdownBehavior::SKIP_ON_SHUTDOWN, traits.shutdown_behavior());
   EXPECT_FALSE(traits.may_block());
   EXPECT_FALSE(traits.with_base_sync_primitives());
 }
 
 TEST(TaskSchedulerTaskTraitsTest, TaskPriority) {
@@ skipping 51 matching lines @@
   EXPECT_EQ(traits.priority_set_explicitly(),
             traits_copy.priority_set_explicitly());
   EXPECT_EQ(traits.priority(), traits_copy.priority());
   EXPECT_EQ(traits.shutdown_behavior(), traits_copy.shutdown_behavior());
   EXPECT_EQ(traits.may_block(), traits_copy.may_block());
   EXPECT_EQ(traits.with_base_sync_primitives(),
             traits_copy.with_base_sync_primitives());
 }
 
 }  // namespace base