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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/ui_devtools/devtools_server.h"
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/run_loop.h"
#include "base/task/single_thread_task_runner.h"
#include "base/test/bind.h"
#include "base/test/task_environment.h"
#include "base/test/test_io_thread.h"
#include "build/build_config.h"
#include "components/ui_devtools/switches.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "net/base/address_list.h"
#include "net/base/completion_once_callback.h"
#include "net/base/test_completion_callback.h"
#include "net/server/http_server_request_info.h"
#include "net/socket/tcp_client_socket.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ui_devtools {
class UIDevToolsServerTest : public testing::Test {
public:
UIDevToolsServerTest() {
base::CommandLine::ForCurrentProcess()->AppendSwitch(
switches::kEnableUiDevTools);
}
~UIDevToolsServerTest() override = default;
void SetUp() override {
base::RunLoop run_loop;
server_ = UiDevToolsServer::CreateForViews(
io_thread_.task_runner(), /*port=*/0,
/*active_port_output_directory=*/base::FilePath());
server_->SetOnSocketConnectedForTesting(run_loop.QuitClosure());
run_loop.Run();
}
protected:
// To fully test thread-hopping logic, it's important that this not be an IO
// thread, so any socket IO incorrectly done on the main thread runs into a
// CHECK failure.
base::test::TaskEnvironment task_environment_;
base::TestIOThread io_thread_{base::TestIOThread::kAutoStart};
std::unique_ptr<UiDevToolsServer> server_;
};
// Tests whether the server for Views is properly created so we can connect to
// it.
TEST_F(UIDevToolsServerTest, ConnectionToViewsServer) {
// As with the test server itself, TCPClientSocket can only be connected on an
// IO thread, so have to do all the work here on the IO thread.
base::RunLoop run_loop;
// This socket is created and destroyed on the IO thread, but it's simplest to
// declare it here, since its deleted by a callback that may be invoked
// asynchronously by its connect method, or calls its Connect method,
// depending on whether the connection attempt completes synchronously. Having
// two deletion paths makes BindOnce() not work well with it.
std::unique_ptr<net::TCPClientSocket> client_socket;
// Called on the IO thread once connection has completed. Destroys the
// `client_socket`, which may or may not be the object invoking the callback.
auto on_connect_complete =
base::BindLambdaForTesting([&](int connect_result) {
ASSERT_EQ(connect_result, net::OK);
ASSERT_TRUE(client_socket->IsConnected());
client_socket.reset();
run_loop.Quit();
});
io_thread_.task_runner()->PostTask(
FROM_HERE,
base::BindOnce(
base::BindLambdaForTesting([&](int port) {
net::AddressList addr(
net::IPEndPoint(net::IPAddress(127, 0, 0, 1), port));
client_socket = std::make_unique<net::TCPClientSocket>(
addr, nullptr, nullptr, nullptr, net::NetLogSource());
int connect_result = client_socket->Connect(on_connect_complete);
// On ERR_IO_PENDING, `on_connect_complete` will be invoked
// asynchronously, so need to let the message loop spin until that
// happens.
if (connect_result == net::ERR_IO_PENDING) {
return;
}
// Otherwise, run `on_connect_complete` immediately.
on_connect_complete.Run(connect_result);
}),
// EmbeddedTestServer isn't threadsafe, so have to get the port on the
// main thread, before posting the task.
server_->port()));
run_loop.Run();
}
// Ensure we don't crash from OOB vector access when passed an incorrect
// client ID.
TEST_F(UIDevToolsServerTest, OutOfBoundsClientTest) {
auto client =
std::make_unique<UiDevToolsClient>("UiDevToolsClient", server_.get());
server_->AttachClient(std::move(client));
// Cast for public `OnWebSocketRequest`.
net::HttpServerRequestInfo request;
request.path = "/1";
server_->OnWebSocketRequestForTesting(0, request);
request.path = "/42";
server_->OnWebSocketRequestForTesting(0, request);
request.path = "/-5000";
server_->OnWebSocketRequestForTesting(0, request);
}
} // namespace ui_devtools
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