CPPTest实战演示（CppTest libssh）-Toy模板网

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1 概述

CppTest是一个可移植、功能强大但简单的单元测试框架，用于处理C++中的自动化测试。重点在于可用性和可扩展性。支持多种输出格式，并且可以轻松添加新的输出格式。

CppTest下载地址Sourceforge
Github地址

下面编写实际测试用例，来熟练CppTest库使用。

2 实例

2.1 接口

该接口是对libssh库C++封装，管理shh连接会话，定义如下：

namespace ssh
{
class Session
{
public:
    Session();
    ~Session();

    void set_host(const char* host);
    void set_port(int port);
    void set_port(const char* port);
    void set_user(const char* user);

    bool connect(int timeout = 10);
    void disconnect();
    bool verify();

    AuthMethod auth_method(const char *username);

    bool login(const char* password);
    bool login(const char* user, const char* password);
    bool login_by_interactive(const char* user, const char* password);
    bool login_by_prikey(const char* user, const char* privkeyfile);
    bool login_by_pubkey(const char* user, const char* pubkeyfile);
    const char* error();
};
}

2.2 测试用例

2.2.1 用例定义

class SeesionSuite : public Test::Suite
{
    ssh::Session sessioin_;
    std::string privkeyfile_ = "d:/id_rsa";
    int timeout = 5;
public:
    SeesionSuite()
    {
        TEST_ADD(SeesionSuite::connect_without_host);
        TEST_ADD(SeesionSuite::connect_error_host);
        TEST_ADD(SeesionSuite::connect_not_unconnected);
        TEST_ADD(SeesionSuite::connect_invalid_host);
        TEST_ADD(SeesionSuite::connect_without_port);
        TEST_ADD(SeesionSuite::connect_error_port);
        TEST_ADD(SeesionSuite::connect_correct_port);

        TEST_ADD(SeesionSuite::disconnect);
        TEST_ADD(SeesionSuite::login);
    }
private:
    void connect_without_host();
    void connect_error_host();
    void connect_not_unconnected();
    void connect_invalid_host();
    void connect_without_port();
    void connect_error_port();
    void connect_correct_port();
    void disconnect();
    void login();
    void error();
};

2.2.1 用例实现

#include "SessionTest.h"
#include <iostream>


void SeesionSuite::connect_without_host()
{
    TEST_ASSERT_EQUALS_MSG(false, sessioin_.connect(timeout), "not set host, cannot connected")
    error();
}

void SeesionSuite::connect_error_host()
{
    sessioin_.set_host("127.0.0.1");
    TEST_ASSERT_EQUALS_MSG(false, sessioin_.connect(timeout), "error host, cannot connected")
    error();
}

void SeesionSuite::connect_not_unconnected()
{
    sessioin_.set_host("20.20.20.109");
    TEST_ASSERT_EQUALS_MSG(false, sessioin_.connect(timeout), "not unconnected, cannot connected")
    error();
}

void SeesionSuite::connect_invalid_host()
{
    sessioin_.set_host("x.y.z.d");
    sessioin_.disconnect();
    TEST_ASSERT_EQUALS_MSG(false, sessioin_.connect(timeout), "error host, cannot connected")
    error();
}

void SeesionSuite::connect_without_port()
{
    sessioin_.set_host("20.20.20.109");
    sessioin_.disconnect();
    TEST_ASSERT_EQUALS_MSG(true, sessioin_.connect(timeout), sessioin_.error())
}

void SeesionSuite::connect_error_port()
{
    sessioin_.set_port(23);
    sessioin_.disconnect();
    TEST_ASSERT_EQUALS_MSG(false, sessioin_.connect(timeout), sessioin_.error())
    std::cerr << sessioin_.error() << ":23" << std::endl;
}

void SeesionSuite::connect_correct_port()
{
    sessioin_.set_port(22);
    sessioin_.disconnect();
    TEST_ASSERT_EQUALS_MSG(true, sessioin_.connect(timeout), sessioin_.error())
}

void SeesionSuite::disconnect()
{
    sessioin_.disconnect();
}

void SeesionSuite::login()
{
    sessioin_.set_host("20.20.20.109");
    sessioin_.set_port(22);
    TEST_ASSERT_EQUALS_MSG(true, sessioin_.connect(timeout), sessioin_.error())
    TEST_ASSERT_EQUALS_MSG(true, sessioin_.verify(), "verify is failed")
    ssh::AuthMethod method = sessioin_.auth_method("james");
    TEST_ASSERT_EQUALS_MSG(false, ssh::isUnknowOfAuthMethod(method), "Unknow auth method!")
    if(ssh::isPubKeyOfAuthMethod(method) && !privkeyfile_.empty())
        TEST_ASSERT_EQUALS_MSG(true, sessioin_.login_by_prikey("james", privkeyfile_.c_str()), "Pubkey's login is failed!")
    else if(ssh::isPasswordOfAuthMethod(method))
        TEST_ASSERT_EQUALS_MSG(true, sessioin_.login("james", "james010"), "Password's login is failed!")
    else if(ssh::isInteractiveOfAuthMethod(method))
        TEST_ASSERT_EQUALS_MSG(true, sessioin_.login_by_interactive("james", "james010"), "Interactive's login is failed!")
}

void SeesionSuite::error()
{
    std::cerr << sessioin_.error() << std::endl;
}

说明：

TEST_ASSERT_EQUALS_MSG(expected, got, msg)是CppTest库定义的宏，如果预期值expected与实际值got不同则报错，错误信息为msg

3 运行用例

3.1 主函数

int main(int argc, char *argv[])
{
    Test::Suite mainSuite;
    Test::TextOutput output(Test::TextOutput::Verbose);

    mainSuite.add(std::unique_ptr<Test::Suite>(new SeesionSuite));
    mainSuite.run(output, true);

    return 0;
}

3.1 运行结果

Hostname required
Timeout connecting to 127.0.0.1
ssh_socket_connect called on socket not unconnected
Failed to resolve hostname x.y.z.d ()
Timeout connecting to 20.20.20.109:23

SeesionSuite: 9/9, 100% correct in 10.094000 seconds
Total: 9 tests, 100% correct in 10.094000 seconds