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// Copyright (c) 2011 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.
#ifndef IPC_IPC_TEST_BASE_H_
#define IPC_IPC_TEST_BASE_H_
#include <string>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/process/process.h"
#include "base/test/multiprocess_test.h"
#include "ipc/ipc_channel.h"
#include "ipc/ipc_channel_proxy.h"
#include "ipc/ipc_multiprocess_test.h"
namespace base {
class MessageLoopForIO;
}
// A test fixture for multiprocess IPC tests. Such tests include a "client" side
// (running in a separate process). The same client may be shared between
// several different tests.
class IPCTestBase : public base::MultiProcessTest {
public:
// The channel name is based on the client's name. This is a public static
// helper to be used by the client-side code; server-side test code should
// usually not use this (directly).
static std::string GetChannelName(const std::string& test_client_name);
protected:
IPCTestBase();
virtual ~IPCTestBase();
virtual void SetUp() OVERRIDE;
virtual void TearDown() OVERRIDE;
// Initializes the test to use the given client.
void Init(const std::string& test_client_name);
// Creates a channel with the given listener and connects to the channel
// (returning true if successful), respectively. Use these to use a channel
// directly. Since the listener must outlive the channel, you must destroy the
// channel before the listener gets destroyed.
void CreateChannel(IPC::Listener* listener);
bool ConnectChannel();
void DestroyChannel();
// Use this instead of CreateChannel() if you want to use some different
// channel specification (then use ConnectChannel() as usual).
void CreateChannelFromChannelHandle(const IPC::ChannelHandle& channel_handle,
IPC::Listener* listener);
// Creates a channel proxy with the given listener and task runner. (The
// channel proxy will automatically create and connect a channel.) You must
// (manually) destroy the channel proxy before the task runner's thread is
// destroyed.
void CreateChannelProxy(IPC::Listener* listener,
base::SingleThreadTaskRunner* ipc_task_runner);
void DestroyChannelProxy();
// Starts the client process, returning true if successful; this should be
// done after connecting to the channel.
bool StartClient();
// Waits for the client to shut down, returning true if successful. Note that
// this does not initiate client shutdown; that must be done by the test
// (somehow). This must be called before the end of the test whenever
// StartClient() was called successfully.
bool WaitForClientShutdown();
// Use this to send IPC messages (when you don't care if you're using a
// channel or a proxy).
IPC::Sender* sender() {
return channel_.get() ? static_cast<IPC::Sender*>(channel_.get()) :
static_cast<IPC::Sender*>(channel_proxy_.get());
}
IPC::Channel* channel() { return channel_.get(); }
IPC::ChannelProxy* channel_proxy() { return channel_proxy_.get(); }
const base::ProcessHandle& client_process() const { return client_process_; }
private:
std::string test_client_name_;
scoped_ptr<base::MessageLoopForIO> message_loop_;
scoped_ptr<IPC::Channel> channel_;
scoped_ptr<IPC::ChannelProxy> channel_proxy_;
base::ProcessHandle client_process_;
DISALLOW_COPY_AND_ASSIGN(IPCTestBase);
};
// Use this to declare the client side for tests using IPCTestBase.
#define MULTIPROCESS_IPC_TEST_CLIENT_MAIN(test_client_name) \
MULTIPROCESS_IPC_TEST_MAIN(test_client_name ## TestClientMain)
#endif // IPC_IPC_TEST_BASE_H_
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