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// 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 <stddef.h>
#include <stdint.h>
#include <memory>
#include <string>
#include "base/location.h"
#include "base/macros.h"
#include "base/run_loop.h"
#include "base/single_thread_task_runner.h"
#include "base/test/test_timeouts.h"
#include "base/threading/thread_task_runner_handle.h"
#include "chrome/test/base/browser_with_test_window_test.h"
#include "extensions/browser/api/socket/udp_socket.h"
#include "net/base/io_buffer.h"
#include "net/base/ip_address.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace extensions {
// UDPSocketUnitTest exists solely to make it easier to pass a specific
// gtest_filter argument during development.
class UDPSocketUnitTest : public BrowserWithTestWindowTest {
};
static void OnConnected(int result) {
EXPECT_EQ(0, result);
}
static void OnCompleted(int bytes_read,
scoped_refptr<net::IOBuffer> io_buffer,
bool socket_destroying,
const std::string& address,
uint16_t port) {
// Do nothing; don't care.
}
static const char test_message[] = "$$TESTMESSAGETESTMESSAGETESTMESSAGETEST$$";
static const int test_message_length = arraysize(test_message);
net::AddressList CreateAddressList(const char* address_string, int port) {
net::IPAddress ip;
EXPECT_TRUE(ip.AssignFromIPLiteral(address_string));
return net::AddressList::CreateFromIPAddress(ip, port);
}
static void OnSendCompleted(int result) {
EXPECT_EQ(test_message_length, result);
}
TEST(UDPSocketUnitTest, TestUDPSocketRecvFrom) {
base::MessageLoopForIO io_loop; // For RecvFrom to do its threaded work.
UDPSocket socket("abcdefghijklmnopqrst");
// Confirm that we can call two RecvFroms in quick succession without
// triggering crbug.com/146606.
socket.Connect(CreateAddressList("127.0.0.1", 40000),
base::Bind(&OnConnected));
socket.RecvFrom(4096, base::Bind(&OnCompleted));
socket.RecvFrom(4096, base::Bind(&OnCompleted));
}
TEST(UDPSocketUnitTest, TestUDPMulticastJoinGroup) {
const char kGroup[] = "237.132.100.17";
UDPSocket src("abcdefghijklmnopqrst");
UDPSocket dest("abcdefghijklmnopqrst");
EXPECT_EQ(0, dest.Bind("0.0.0.0", 13333));
EXPECT_EQ(0, dest.JoinGroup(kGroup));
std::vector<std::string> groups = dest.GetJoinedGroups();
EXPECT_EQ(static_cast<size_t>(1), groups.size());
EXPECT_EQ(kGroup, *groups.begin());
EXPECT_NE(0, dest.LeaveGroup("237.132.100.13"));
EXPECT_EQ(0, dest.LeaveGroup(kGroup));
groups = dest.GetJoinedGroups();
EXPECT_EQ(static_cast<size_t>(0), groups.size());
}
TEST(UDPSocketUnitTest, TestUDPMulticastTimeToLive) {
const char kGroup[] = "237.132.100.17";
UDPSocket socket("abcdefghijklmnopqrst");
EXPECT_NE(0, socket.SetMulticastTimeToLive(-1)); // Negative TTL shall fail.
EXPECT_EQ(0, socket.SetMulticastTimeToLive(3));
socket.Connect(CreateAddressList(kGroup, 13333), base::Bind(&OnConnected));
}
TEST(UDPSocketUnitTest, TestUDPMulticastLoopbackMode) {
const char kGroup[] = "237.132.100.17";
UDPSocket socket("abcdefghijklmnopqrst");
EXPECT_EQ(0, socket.SetMulticastLoopbackMode(false));
socket.Connect(CreateAddressList(kGroup, 13333), base::Bind(&OnConnected));
}
// Send a test multicast packet every second.
// Once the target socket received the packet, the message loop will exit.
static void SendMulticastPacket(const base::Closure& quit_run_loop,
UDPSocket* src,
int result) {
if (result == 0) {
scoped_refptr<net::IOBuffer> data = new net::WrappedIOBuffer(test_message);
src->Write(data, test_message_length, base::Bind(&OnSendCompleted));
base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
FROM_HERE, base::Bind(&SendMulticastPacket, quit_run_loop, src, result),
base::TimeDelta::FromSeconds(1));
} else {
quit_run_loop.Run();
FAIL() << "Failed to connect to multicast address. Error code: " << result;
}
}
static void OnMulticastReadCompleted(const base::Closure& quit_run_loop,
bool* packet_received,
int count,
scoped_refptr<net::IOBuffer> io_buffer,
bool socket_destroying) {
EXPECT_EQ(test_message_length, count);
EXPECT_EQ(0, strncmp(io_buffer->data(), test_message, test_message_length));
*packet_received = true;
quit_run_loop.Run();
}
TEST(UDPSocketUnitTest, TestUDPMulticastRecv) {
const int kPort = 9999;
const char kGroup[] = "237.132.100.17";
bool packet_received = false;
base::MessageLoopForIO io_loop; // For Read to do its threaded work.
UDPSocket dest("abcdefghijklmnopqrst");
UDPSocket src("abcdefghijklmnopqrst");
base::RunLoop run_loop;
// Receiver
EXPECT_EQ(0, dest.Bind("0.0.0.0", kPort));
EXPECT_EQ(0, dest.JoinGroup(kGroup));
dest.Read(1024, base::Bind(&OnMulticastReadCompleted, run_loop.QuitClosure(),
&packet_received));
// Sender
EXPECT_EQ(0, src.SetMulticastTimeToLive(0));
src.Connect(CreateAddressList(kGroup, kPort),
base::Bind(&SendMulticastPacket, run_loop.QuitClosure(), &src));
// If not received within the test action timeout, quit the message loop.
io_loop.task_runner()->PostDelayedTask(FROM_HERE, run_loop.QuitClosure(),
TestTimeouts::action_timeout());
run_loop.Run();
EXPECT_TRUE(packet_received) << "Failed to receive from multicast address";
}
} // namespace extensions
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