// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/nearby_sharing/tcp_socket/nearby_connections_tcp_socket_factory.h"
#include <memory>
#include "base/functional/bind.h"
#include "base/run_loop.h"
#include "base/test/bind.h"
#include "base/test/task_environment.h"
#include "chromeos/ash/services/nearby/public/cpp/tcp_server_socket_port.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "net/base/ip_endpoint.h"
#include "net/base/net_errors.h"
#include "net/traffic_annotation/network_traffic_annotation.h"
#include "net/traffic_annotation/network_traffic_annotation_test_helper.h"
#include "services/network/test/test_network_context.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
uint32_t kBacklog = 10;
const net::MutableNetworkTrafficAnnotationTag kAnnotation =
net::MutableNetworkTrafficAnnotationTag(TRAFFIC_ANNOTATION_FOR_TESTS);
const net::IPEndPoint kLocalAddress(net::IPAddress(192, 168, 86, 01),
ash::nearby::TcpServerSocketPort::kMin);
const net::IPEndPoint kRemoteAddress(net::IPAddress(192, 168, 86, 02),
ash::nearby::TcpServerSocketPort::kMax);
} // namespace
class NearbyConnectionsTcpSocketFactoryTest : public ::testing::Test {
protected:
// Verifies input data and immediately invokes callbacks.
class FakeNetworkContext : public network::TestNetworkContext {
public:
FakeNetworkContext() = default;
~FakeNetworkContext() override = default;
bool should_invoke_connect_callback_ = true;
private:
// network::TestNetworkContext:
void CreateTCPServerSocket(
const net::IPEndPoint& local_addr,
network::mojom::TCPServerSocketOptionsPtr options,
const net::MutableNetworkTrafficAnnotationTag& traffic_annotation,
mojo::PendingReceiver<network::mojom::TCPServerSocket> socket,
CreateTCPServerSocketCallback callback) override {
EXPECT_EQ(kLocalAddress, local_addr);
EXPECT_EQ(kBacklog, options->backlog);
EXPECT_EQ(traffic_annotation, net::MutableNetworkTrafficAnnotationTag(
TRAFFIC_ANNOTATION_FOR_TESTS));
std::move(callback).Run(net::OK, local_addr);
}
void CreateTCPConnectedSocket(
const std::optional<net::IPEndPoint>& local_addr,
const net::AddressList& remote_addr_list,
network::mojom::TCPConnectedSocketOptionsPtr
tcp_connected_socket_options,
const net::MutableNetworkTrafficAnnotationTag& traffic_annotation,
mojo::PendingReceiver<network::mojom::TCPConnectedSocket> socket,
mojo::PendingRemote<network::mojom::SocketObserver> observer,
CreateTCPConnectedSocketCallback callback) override {
EXPECT_EQ(kLocalAddress, local_addr);
EXPECT_EQ(1u, remote_addr_list.size());
EXPECT_EQ(kRemoteAddress, remote_addr_list[0]);
EXPECT_EQ(kAnnotation, traffic_annotation);
if (should_invoke_connect_callback_) {
std::move(callback).Run(
net::OK, local_addr, remote_addr_list[0],
/*receive_stream=*/mojo::ScopedDataPipeConsumerHandle(),
/*send_stream=*/mojo::ScopedDataPipeProducerHandle());
}
}
};
NearbyConnectionsTcpSocketFactoryTest() = default;
~NearbyConnectionsTcpSocketFactoryTest() override = default;
void SetUp() override {
fake_network_context_ = std::make_unique<FakeNetworkContext>();
factory_ =
std::make_unique<NearbyConnectionsTcpSocketFactory>(base::BindRepeating(
&NearbyConnectionsTcpSocketFactoryTest::GetNetworkContext,
base::Unretained(this)));
}
network::mojom::NetworkContext* GetNetworkContext() {
return fake_network_context_.get();
}
base::test::TaskEnvironment task_environment_{
base::test::TaskEnvironment::TimeSource::MOCK_TIME};
std::unique_ptr<FakeNetworkContext> fake_network_context_;
std::unique_ptr<NearbyConnectionsTcpSocketFactory> factory_;
};
TEST_F(NearbyConnectionsTcpSocketFactoryTest, NetworkContextExists) {
{
base::RunLoop run_loop;
factory_->CreateTCPServerSocket(
kLocalAddress.address(),
*ash::nearby::TcpServerSocketPort::FromUInt16(kLocalAddress.port()),
kBacklog, kAnnotation, /*receiver=*/mojo::NullReceiver(),
base::BindLambdaForTesting(
[&run_loop](int32_t result,
const std::optional<net::IPEndPoint>& local_addr) {
EXPECT_EQ(net::OK, result);
EXPECT_EQ(kLocalAddress, local_addr);
run_loop.Quit();
}));
run_loop.Run();
}
{
base::RunLoop run_loop;
factory_->CreateTCPConnectedSocket(
/*timeout=*/base::Seconds(5), kLocalAddress,
net::AddressList(kRemoteAddress),
/*tcp_connected_socket_options=*/nullptr, kAnnotation,
/*receiver=*/mojo::NullReceiver(),
/*observer=*/mojo::NullRemote(),
base::BindLambdaForTesting(
[&run_loop](int32_t result,
const std::optional<net::IPEndPoint>& local_addr,
const std::optional<net::IPEndPoint>& peer_addr,
mojo::ScopedDataPipeConsumerHandle receive_stream,
mojo::ScopedDataPipeProducerHandle send_stream) {
EXPECT_EQ(net::OK, result);
EXPECT_EQ(kLocalAddress, local_addr);
EXPECT_EQ(kRemoteAddress, peer_addr);
run_loop.Quit();
}));
run_loop.Run();
}
}
TEST_F(NearbyConnectionsTcpSocketFactoryTest, NetworkContextDoesNotExist) {
fake_network_context_.reset();
// Expect trivial data in callback when the network context is null.
{
base::RunLoop run_loop;
factory_->CreateTCPServerSocket(
kLocalAddress.address(),
*ash::nearby::TcpServerSocketPort::FromUInt16(kLocalAddress.port()),
kBacklog, kAnnotation, /*receiver=*/mojo::NullReceiver(),
base::BindLambdaForTesting(
[&run_loop](int32_t result,
const std::optional<net::IPEndPoint>& local_addr) {
EXPECT_EQ(net::ERR_FAILED, result);
EXPECT_EQ(std::nullopt, local_addr);
run_loop.Quit();
}));
run_loop.Run();
}
{
base::RunLoop run_loop;
factory_->CreateTCPConnectedSocket(
/*timeout=*/base::Seconds(5), kLocalAddress,
net::AddressList(kRemoteAddress),
/*tcp_connected_socket_options=*/nullptr, kAnnotation,
/*receiver=*/mojo::NullReceiver(),
/*observer=*/mojo::NullRemote(),
base::BindLambdaForTesting(
[&run_loop](int32_t result,
const std::optional<net::IPEndPoint>& local_addr,
const std::optional<net::IPEndPoint>& peer_addr,
mojo::ScopedDataPipeConsumerHandle receive_stream,
mojo::ScopedDataPipeProducerHandle send_stream) {
EXPECT_EQ(net::ERR_FAILED, result);
EXPECT_EQ(std::nullopt, local_addr);
EXPECT_EQ(std::nullopt, peer_addr);
EXPECT_EQ(mojo::ScopedDataPipeConsumerHandle(), receive_stream);
EXPECT_EQ(mojo::ScopedDataPipeProducerHandle(), send_stream);
run_loop.Quit();
}));
run_loop.Run();
}
}
TEST_F(NearbyConnectionsTcpSocketFactoryTest, ConnectTimeout) {
// Finishes in time.
{
base::RunLoop run_loop;
factory_->CreateTCPConnectedSocket(
/*timeout=*/base::Seconds(5), kLocalAddress,
net::AddressList(kRemoteAddress),
/*tcp_connected_socket_options=*/nullptr, kAnnotation,
/*receiver=*/mojo::NullReceiver(),
/*observer=*/mojo::NullRemote(),
base::BindLambdaForTesting(
[&run_loop](int32_t result,
const std::optional<net::IPEndPoint>& local_addr,
const std::optional<net::IPEndPoint>& peer_addr,
mojo::ScopedDataPipeConsumerHandle receive_stream,
mojo::ScopedDataPipeProducerHandle send_stream) {
EXPECT_EQ(net::OK, result);
EXPECT_EQ(kLocalAddress, local_addr);
EXPECT_EQ(kRemoteAddress, peer_addr);
run_loop.Quit();
}));
run_loop.Run();
}
// Does not finish in time.
{
base::RunLoop run_loop;
// Make NetworkContext never finish.
fake_network_context_->should_invoke_connect_callback_ = false;
factory_->CreateTCPConnectedSocket(
/*timeout=*/base::Seconds(5), kLocalAddress,
net::AddressList(kRemoteAddress),
/*tcp_connected_socket_options=*/nullptr, kAnnotation,
/*receiver=*/mojo::NullReceiver(),
/*observer=*/mojo::NullRemote(),
base::BindLambdaForTesting(
[&run_loop](int32_t result,
const std::optional<net::IPEndPoint>& local_addr,
const std::optional<net::IPEndPoint>& peer_addr,
mojo::ScopedDataPipeConsumerHandle receive_stream,
mojo::ScopedDataPipeProducerHandle send_stream) {
EXPECT_EQ(net::ERR_TIMED_OUT, result);
EXPECT_EQ(std::nullopt, local_addr);
EXPECT_EQ(std::nullopt, peer_addr);
EXPECT_EQ(mojo::ScopedDataPipeConsumerHandle(), receive_stream);
EXPECT_EQ(mojo::ScopedDataPipeProducerHandle(), send_stream);
run_loop.Quit();
}));
// Note: We do not need to call TaskEnvironment::FastForwardBy();
// RunLoop::Run() auto-advances to the soonest delayed task when all managed
// threads are idle.
run_loop.Run();
}
}
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