blob: 3fd7560655445636f3ef408fb2649f552aa08890 [file] [log] [blame]
// Copyright (c) 2012 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_runner_util.h"
#include <utility>
#include "base/bind.h"
#include "base/location.h"
#include "base/run_loop.h"
#include "base/test/scoped_task_environment.h"
#include "base/threading/thread_task_runner_handle.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace {
int ReturnFourtyTwo() {
return 42;
}
void StoreValue(int* destination, int value) {
*destination = value;
}
void StoreDoubleValue(double* destination, double value) {
*destination = value;
}
int g_foo_destruct_count = 0;
int g_foo_free_count = 0;
struct Foo {
~Foo() {
++g_foo_destruct_count;
}
};
std::unique_ptr<Foo> CreateFoo() {
return std::unique_ptr<Foo>(new Foo);
}
void ExpectFoo(std::unique_ptr<Foo> foo) {
EXPECT_TRUE(foo.get());
std::unique_ptr<Foo> local_foo(std::move(foo));
EXPECT_TRUE(local_foo.get());
EXPECT_FALSE(foo.get());
}
struct FooDeleter {
void operator()(Foo* foo) const {
++g_foo_free_count;
delete foo;
}
};
std::unique_ptr<Foo, FooDeleter> CreateScopedFoo() {
return std::unique_ptr<Foo, FooDeleter>(new Foo);
}
void ExpectScopedFoo(std::unique_ptr<Foo, FooDeleter> foo) {
EXPECT_TRUE(foo.get());
std::unique_ptr<Foo, FooDeleter> local_foo(std::move(foo));
EXPECT_TRUE(local_foo.get());
EXPECT_FALSE(foo.get());
}
struct FooWithoutDefaultConstructor {
explicit FooWithoutDefaultConstructor(int value) : value(value) {}
int value;
};
FooWithoutDefaultConstructor CreateFooWithoutDefaultConstructor(int value) {
return FooWithoutDefaultConstructor(value);
}
void SaveFooWithoutDefaultConstructor(int* output_value,
FooWithoutDefaultConstructor input) {
*output_value = input.value;
}
} // namespace
TEST(TaskRunnerHelpersTest, PostTaskAndReplyWithResult) {
int result = 0;
test::TaskEnvironment task_environment;
PostTaskAndReplyWithResult(ThreadTaskRunnerHandle::Get().get(), FROM_HERE,
BindOnce(&ReturnFourtyTwo),
BindOnce(&StoreValue, &result));
RunLoop().RunUntilIdle();
EXPECT_EQ(42, result);
}
TEST(TaskRunnerHelpersTest, PostTaskAndReplyWithResultImplicitConvert) {
double result = 0;
test::TaskEnvironment task_environment;
PostTaskAndReplyWithResult(ThreadTaskRunnerHandle::Get().get(), FROM_HERE,
BindOnce(&ReturnFourtyTwo),
BindOnce(&StoreDoubleValue, &result));
RunLoop().RunUntilIdle();
EXPECT_DOUBLE_EQ(42.0, result);
}
TEST(TaskRunnerHelpersTest, PostTaskAndReplyWithResultPassed) {
g_foo_destruct_count = 0;
g_foo_free_count = 0;
test::TaskEnvironment task_environment;
PostTaskAndReplyWithResult(ThreadTaskRunnerHandle::Get().get(), FROM_HERE,
BindOnce(&CreateFoo), BindOnce(&ExpectFoo));
RunLoop().RunUntilIdle();
EXPECT_EQ(1, g_foo_destruct_count);
EXPECT_EQ(0, g_foo_free_count);
}
TEST(TaskRunnerHelpersTest, PostTaskAndReplyWithResultPassedFreeProc) {
g_foo_destruct_count = 0;
g_foo_free_count = 0;
test::TaskEnvironment task_environment;
PostTaskAndReplyWithResult(ThreadTaskRunnerHandle::Get().get(), FROM_HERE,
BindOnce(&CreateScopedFoo),
BindOnce(&ExpectScopedFoo));
RunLoop().RunUntilIdle();
EXPECT_EQ(1, g_foo_destruct_count);
EXPECT_EQ(1, g_foo_free_count);
}
TEST(TaskRunnerHelpersTest,
PostTaskAndReplyWithResultWithoutDefaultConstructor) {
const int kSomeVal = 17;
test::TaskEnvironment task_environment;
int actual = 0;
PostTaskAndReplyWithResult(
ThreadTaskRunnerHandle::Get().get(), FROM_HERE,
BindOnce(&CreateFooWithoutDefaultConstructor, kSomeVal),
BindOnce(&SaveFooWithoutDefaultConstructor, &actual));
RunLoop().RunUntilIdle();
EXPECT_EQ(kSomeVal, actual);
}
} // namespace base