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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/task/task_traits.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
TEST(TaskTraitsTest, Default) {
constexpr TaskTraits traits = {};
EXPECT_EQ(TaskPriority::USER_BLOCKING, traits.priority());
EXPECT_FALSE(traits.shutdown_behavior_set_explicitly());
EXPECT_EQ(TaskShutdownBehavior::SKIP_ON_SHUTDOWN, traits.shutdown_behavior());
EXPECT_FALSE(traits.thread_policy_set_explicitly());
EXPECT_EQ(ThreadPolicy::PREFER_BACKGROUND, traits.thread_policy());
EXPECT_FALSE(traits.may_block());
EXPECT_FALSE(traits.with_base_sync_primitives());
}
TEST(TaskTraitsTest, TaskPriority) {
constexpr TaskTraits traits = {TaskPriority::BEST_EFFORT};
EXPECT_EQ(TaskPriority::BEST_EFFORT, traits.priority());
EXPECT_FALSE(traits.shutdown_behavior_set_explicitly());
EXPECT_EQ(TaskShutdownBehavior::SKIP_ON_SHUTDOWN, traits.shutdown_behavior());
EXPECT_FALSE(traits.thread_policy_set_explicitly());
EXPECT_EQ(ThreadPolicy::PREFER_BACKGROUND, traits.thread_policy());
EXPECT_FALSE(traits.may_block());
EXPECT_FALSE(traits.with_base_sync_primitives());
}
TEST(TaskTraitsTest, TaskShutdownBehavior) {
constexpr TaskTraits traits = {TaskShutdownBehavior::BLOCK_SHUTDOWN};
EXPECT_EQ(TaskPriority::USER_BLOCKING, traits.priority());
EXPECT_TRUE(traits.shutdown_behavior_set_explicitly());
EXPECT_EQ(TaskShutdownBehavior::BLOCK_SHUTDOWN, traits.shutdown_behavior());
EXPECT_FALSE(traits.thread_policy_set_explicitly());
EXPECT_EQ(ThreadPolicy::PREFER_BACKGROUND, traits.thread_policy());
EXPECT_FALSE(traits.may_block());
EXPECT_FALSE(traits.with_base_sync_primitives());
}
TEST(TaskTraitsTest, ThreadPolicy) {
constexpr TaskTraits traits = {ThreadPolicy::MUST_USE_FOREGROUND};
EXPECT_EQ(TaskPriority::USER_BLOCKING, traits.priority());
EXPECT_FALSE(traits.shutdown_behavior_set_explicitly());
EXPECT_EQ(TaskShutdownBehavior::SKIP_ON_SHUTDOWN, traits.shutdown_behavior());
EXPECT_TRUE(traits.thread_policy_set_explicitly());
EXPECT_EQ(ThreadPolicy::MUST_USE_FOREGROUND, traits.thread_policy());
EXPECT_FALSE(traits.may_block());
EXPECT_FALSE(traits.with_base_sync_primitives());
}
TEST(TaskTraitsTest, MayBlock) {
constexpr TaskTraits traits = {MayBlock()};
EXPECT_EQ(TaskPriority::USER_BLOCKING, traits.priority());
EXPECT_FALSE(traits.shutdown_behavior_set_explicitly());
EXPECT_EQ(TaskShutdownBehavior::SKIP_ON_SHUTDOWN, traits.shutdown_behavior());
EXPECT_FALSE(traits.thread_policy_set_explicitly());
EXPECT_EQ(ThreadPolicy::PREFER_BACKGROUND, traits.thread_policy());
EXPECT_TRUE(traits.may_block());
EXPECT_FALSE(traits.with_base_sync_primitives());
}
TEST(TaskTraitsTest, WithBaseSyncPrimitives) {
constexpr TaskTraits traits = {WithBaseSyncPrimitives()};
EXPECT_EQ(TaskPriority::USER_BLOCKING, traits.priority());
EXPECT_FALSE(traits.shutdown_behavior_set_explicitly());
EXPECT_EQ(TaskShutdownBehavior::SKIP_ON_SHUTDOWN, traits.shutdown_behavior());
EXPECT_FALSE(traits.thread_policy_set_explicitly());
EXPECT_EQ(ThreadPolicy::PREFER_BACKGROUND, traits.thread_policy());
EXPECT_FALSE(traits.may_block());
EXPECT_TRUE(traits.with_base_sync_primitives());
}
TEST(TaskTraitsTest, UpdatePriority) {
{
TaskTraits traits = {};
traits.UpdatePriority(TaskPriority::BEST_EFFORT);
EXPECT_EQ(TaskPriority::BEST_EFFORT, traits.priority());
}
{
TaskTraits traits = {TaskPriority::USER_VISIBLE};
traits.UpdatePriority(TaskPriority::BEST_EFFORT);
EXPECT_EQ(TaskPriority::BEST_EFFORT, traits.priority());
}
}
TEST(TaskTraitsTest, MultipleTraits) {
constexpr TaskTraits traits = {
TaskPriority::BEST_EFFORT, TaskShutdownBehavior::BLOCK_SHUTDOWN,
ThreadPolicy::MUST_USE_FOREGROUND, MayBlock(), WithBaseSyncPrimitives()};
EXPECT_EQ(TaskPriority::BEST_EFFORT, traits.priority());
EXPECT_TRUE(traits.shutdown_behavior_set_explicitly());
EXPECT_EQ(TaskShutdownBehavior::BLOCK_SHUTDOWN, traits.shutdown_behavior());
EXPECT_TRUE(traits.thread_policy_set_explicitly());
EXPECT_EQ(ThreadPolicy::MUST_USE_FOREGROUND, traits.thread_policy());
EXPECT_TRUE(traits.may_block());
EXPECT_TRUE(traits.with_base_sync_primitives());
}
TEST(TaskTraitsTest, Copy) {
constexpr TaskTraits traits = {
TaskPriority::BEST_EFFORT, TaskShutdownBehavior::BLOCK_SHUTDOWN,
ThreadPolicy::MUST_USE_FOREGROUND, MayBlock(), WithBaseSyncPrimitives()};
constexpr TaskTraits traits_copy(traits);
EXPECT_EQ(traits, traits_copy);
EXPECT_EQ(traits.priority(), traits_copy.priority());
EXPECT_EQ(traits.shutdown_behavior_set_explicitly(),
traits_copy.shutdown_behavior_set_explicitly());
EXPECT_EQ(traits.shutdown_behavior(), traits_copy.shutdown_behavior());
EXPECT_EQ(traits.thread_policy_set_explicitly(),
traits_copy.thread_policy_set_explicitly());
EXPECT_EQ(traits.thread_policy(), traits_copy.thread_policy());
EXPECT_EQ(traits.may_block(), traits_copy.may_block());
EXPECT_EQ(traits.with_base_sync_primitives(),
traits_copy.with_base_sync_primitives());
}
} // namespace base
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