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/*
* Copyright (C) 2016 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef SOCKET_MOCK_H_
#define SOCKET_MOCK_H_
#include <memory>
#include <queue>
#include <string>
#include <android-base/macros.h>
#include "socket.h"
// A mock Socket implementation to be used for testing. Tests can set expectations for messages
// to be sent and provide messages to be received in order to verify protocol behavior.
//
// Example: testing sending "foo" and receiving "bar".
// SocketMock mock;
// mock.ExpectSend("foo");
// mock.AddReceive("bar");
// EXPECT_TRUE(DoFooBar(&mock));
//
// Example: testing sending "foo" and expecting "bar", but receiving "baz" instead.
// SocketMock mock;
// mock.ExpectSend("foo");
// mock.AddReceive("baz");
// EXPECT_FALSE(DoFooBar(&mock));
class SocketMock : public Socket {
public:
SocketMock();
~SocketMock() override;
bool Send(const void* data, size_t length) override;
bool Send(std::vector<cutils_socket_buffer_t> buffers) override;
ssize_t Receive(void* data, size_t length, int timeout_ms) override;
int Close() override;
virtual std::unique_ptr<Socket> Accept();
// Adds an expectation for Send().
void ExpectSend(std::string message);
// Adds an expectation for Send() that returns false.
void ExpectSendFailure(std::string message);
// Adds data to provide for Receive().
void AddReceive(std::string message);
// Adds a Receive() timeout after which ReceiveTimedOut() will return true.
void AddReceiveTimeout();
// Adds a Receive() failure after which ReceiveTimedOut() will return false.
void AddReceiveFailure();
// Adds a Socket to return from Accept().
void AddAccept(std::unique_ptr<Socket> sock);
private:
enum class EventType { kSend, kReceive, kAccept };
struct Event {
Event(EventType _type, std::string _message, ssize_t _status,
std::unique_ptr<Socket> _sock);
EventType type;
std::string message;
bool status; // Return value for Send() or timeout status for Receive().
std::unique_ptr<Socket> sock;
};
std::queue<Event> events_;
DISALLOW_COPY_AND_ASSIGN(SocketMock);
};
#endif // SOCKET_MOCK_H_
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