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// 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 "media/cast/net/udp_packet_pipe.h"
#include <cstring>
#include <memory>
#include <string>
#include "base/bind.h"
#include "base/callback.h"
#include "base/containers/circular_deque.h"
#include "base/macros.h"
#include "base/test/mock_callback.h"
#include "base/test/task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
namespace cast {
namespace {
constexpr uint32_t kDefaultDataPipeCapacityBytes = 10;
} // namespace
class UdpPacketPipeTest : public ::testing::Test {
public:
UdpPacketPipeTest() {
mojo::DataPipe data_pipe(kDefaultDataPipeCapacityBytes);
writer_ = std::make_unique<UdpPacketPipeWriter>(
std::move(data_pipe.producer_handle));
reader_ = std::make_unique<UdpPacketPipeReader>(
std::move(data_pipe.consumer_handle));
}
~UdpPacketPipeTest() override = default;
void OnPacketRead(std::unique_ptr<Packet> packet) {
packets_read_.push_back(std::move(packet));
}
protected:
base::test::TaskEnvironment task_environment_;
std::unique_ptr<UdpPacketPipeWriter> writer_;
std::unique_ptr<UdpPacketPipeReader> reader_;
base::circular_deque<std::unique_ptr<Packet>> packets_read_;
private:
DISALLOW_COPY_AND_ASSIGN(UdpPacketPipeTest);
};
TEST_F(UdpPacketPipeTest, Normal) {
std::string data1 = "test";
std::string data2 = "Hello!";
Packet packet1(data1.begin(), data1.end());
Packet packet2(data2.begin(), data2.end());
// Writes |packet1|. Expected to be done successfully.
base::MockCallback<base::OnceClosure> done_callback;
EXPECT_CALL(done_callback, Run()).Times(1);
writer_->Write(new base::RefCountedData<Packet>(packet1),
done_callback.Get());
task_environment_.RunUntilIdle();
// |packet2| can not be completely written in the data pipe due to capacity
// limit.
base::MockCallback<base::OnceClosure> done_callback2;
EXPECT_CALL(done_callback2, Run()).Times(0);
writer_->Write(new base::RefCountedData<Packet>(packet2),
done_callback2.Get());
task_environment_.RunUntilIdle();
testing::Mock::VerifyAndClearExpectations(&done_callback2);
EXPECT_TRUE(packets_read_.empty());
// |packet2| is expected to complete writing after |packet1| is read.
EXPECT_CALL(done_callback2, Run()).Times(1);
reader_->Read(
base::BindOnce(&UdpPacketPipeTest::OnPacketRead, base::Unretained(this)));
task_environment_.RunUntilIdle();
EXPECT_EQ(1u, packets_read_.size());
EXPECT_EQ(0, std::memcmp(packet1.data(), packets_read_.front()->data(),
packet1.size()));
packets_read_.pop_front();
// Reads |packet2| from the pipe.
reader_->Read(
base::BindOnce(&UdpPacketPipeTest::OnPacketRead, base::Unretained(this)));
task_environment_.RunUntilIdle();
EXPECT_EQ(1u, packets_read_.size());
EXPECT_EQ(0, std::memcmp(packet2.data(), packets_read_.front()->data(),
packet2.size()));
packets_read_.pop_front();
EXPECT_TRUE(packets_read_.empty());
}
} // namespace cast
} // namespace media
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