TDD实例

TDD实例

github地址

项目中对于 TDD 的实战，依赖的是 GoogleTest 框架

我负责编码单元对中控提供

• 设置编码单元
• 设置视频源
• 设置视频输出
• 状态检测
• 开启通道
• 关闭通道

这 6 个接口，中控通过 http 调用编码单元接口，为了解耦和方便进行 TDD 测试，我们将这几个方法写成一个抽象类，编码单元再实现具体的方法：

class IEventHandler {
 public:

  virtual bool StartChannel(int channel_id) = 0;

  virtual bool StopChannel(int channel_id) = 0;

  virtual bool ConfigChannel(int channel_id,
                             const tucodec::SChannelSourceConfig &source_config) = 0;

  virtual bool ConfigChannel(int channel_id,
                             const tucodec::SChannelDestConfig &dest_config) = 0;

  virtual bool ConfigChannel(int channel_id,
                             const tucodec::SChannelEncoderConfig &encoder_config) = 0;

  virtual void DetectWorker(int channel_id, int duration,
                             tucodec::SWorkerStatus &worker_status) = 0;

};

这里 ConfigChannel 方法处理不同的参数结构体。

在测试用例中首先继承 testing::Test 和 public IEventHandler

class HttpControllerTest : public testing::Test, public IEventHandler {
 public:

  bool StartChannel(int channel_id) override {
    channel_id_ = channel_id;    
    return true;
  }

  bool StopChannel(int channel_id) override {
    channel_id_ = channel_id;  
    return true;
  }

  bool ConfigChannel(int channel_id,
                     const tucodec::SChannelSourceConfig &source_config) override {
    channel_id_ = channel_id;
    // 其他参数省略
    source_config_.username = source_config.username;

    return true;
  }

  bool ConfigChannel(int channel_id,
                     const tucodec::SChannelDestConfig &dest_config) override {
    channel_id_ = channel_id;
    // 其他参数省略
    dest_config_.port = dest_config.port;
    return true;
  }

  bool ConfigChannel(int channel_id,
                     const tucodec::SChannelEncoderConfig &encoder_config) override {
    channel_id_ = channel_id;
    // 其他参数省略
    encoder_config_.output_h = encoder_config.output_h;  
    return true;
  }

  void DetectWorker(int channel_id, int duration,
                            tucodec::SWorkerStatus &worker_status) override {
    channel_id_ = channel_id;
  };  

 protected:
  void SetUp() override {    
    tucodec::TuLog::Init("", "http_controller_test.log", 50, 2 * 1024 * 1024);
    tucodec::TuLog::Instance()->SetPriority(tucodec::kTulogDebug);   
    controller_.Init();
  }

  void TearDown() override {  
    tucodec::TuLog::Destory();
  }
 protected :  
  HttpController controller_{this};
  tucodec::SChannelSourceConfig source_config_;
  tucodec::SChannelDestConfig dest_config_;
  tucodec::SChannelEncoderConfig encoder_config_;
  int channel_id_{};
};

TEST_F(HttpControllerTest, GetStateTest) {

  unsigned char get_json[] = "{\n"
                               "    \"cmd\":\"get_state\",\n"
                               "    \"chn_id\":1,\n"
                               "    \"duration\":2\n"
                               "}";
  controller_.ResolveData(get_json, sizeof(get_json));

  ASSERT_EQ(channel_id_, 1);
}


TEST_F(HttpControllerTest, StartChannelTest) {

  unsigned char start_json[] = "{\n"
                               "    \"cmd\"