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// Copyright 2024 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/functional/concurrent_closures.h"
#include <vector>
#include "base/functional/callback.h"
#include "base/test/gtest_util.h"
#include "base/test/task_environment.h"
#include "base/test/test_future.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace {
TEST(ConcurrentClosuresTest, Empty) {
test::SingleThreadTaskEnvironment task_environment;
ConcurrentClosures concurrent;
test::TestFuture<void> future;
std::move(concurrent).Done(future.GetCallback());
EXPECT_FALSE(future.IsReady());
EXPECT_TRUE(future.Wait());
}
TEST(ConcurrentClosuresTest, RunBeforeDone) {
test::SingleThreadTaskEnvironment task_environment;
ConcurrentClosures concurrent;
for (size_t i = 0; i < 10; ++i) {
concurrent.CreateClosure().Run();
}
test::TestFuture<void> future;
std::move(concurrent).Done(future.GetCallback());
EXPECT_FALSE(future.IsReady());
EXPECT_TRUE(future.Wait());
}
TEST(ConcurrentClosuresTest, RunAfterDone) {
test::SingleThreadTaskEnvironment task_environment;
ConcurrentClosures concurrent;
std::vector<base::OnceClosure> closures;
for (size_t i = 0; i < 10; ++i) {
closures.push_back(concurrent.CreateClosure());
}
test::TestFuture<void> future;
std::move(concurrent).Done(future.GetCallback());
for (base::OnceClosure& callback : closures) {
std::move(callback).Run();
}
EXPECT_FALSE(future.IsReady());
EXPECT_TRUE(future.Wait());
}
TEST(ConcurrentClosuresTest, CallbacksOutliveObject) {
test::SingleThreadTaskEnvironment task_environment;
std::vector<base::OnceClosure> closures;
test::TestFuture<void> future;
{
ConcurrentClosures concurrent;
for (size_t i = 0; i < 10; ++i) {
closures.push_back(concurrent.CreateClosure());
}
std::move(concurrent).Done(future.GetCallback());
}
for (base::OnceClosure& callback : closures) {
std::move(callback).Run();
}
EXPECT_FALSE(future.IsReady());
EXPECT_TRUE(future.Wait());
}
} // namespace
} // namespace base
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