TDD开发模式

分手后的思念是犯贱 2022-05-22 23:08 226阅读 0赞

*  ## TDD：测试驱动开发（Test-Driven Development） ##

测试驱动开发是敏捷开发中的一项核心实践和技术，也是一种设计方法论。TDD的原理是在开发功能代码之前，先编写单元测试用例代码，测试代码确定需要编写什么产品代码。TDD的基本思路就是通过测试来推动整个开发的进行，但测试驱动开发并不只是单纯的测试工作，而是把需求分析，设计，质量控制量化的过程。TDD首先考虑使用需求（对象、功能、过程、接口等），主要是编写测试用例框架对功能的过程和接口进行设计，而测试框架可以持续进行验证。

TDD 的定义和步骤看起来很简单：需求被转化成一系列明确的测试例，然后我们撰写代码使测试依此通过，最后重构使得增量代码和存量代码和平共处，满足设计规范和原则（比如说 DRY，OCP，...）。然后周而复始，不断迭代，直至整个项目完成。

/**
     * 
     */
    
    import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.delete;
    import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.fileUpload;
    import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
    import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
    import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.put;
    import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
    import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
    
    import java.time.LocalDateTime;
    import java.time.ZoneId;
    import java.util.Date;
    
    import org.junit.Before;
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.test.context.SpringBootTest;
    import org.springframework.http.MediaType;
    import org.springframework.mock.web.MockMultipartFile;
    import org.springframework.test.context.junit4.SpringRunner;
    import org.springframework.test.web.servlet.MockMvc;
    import org.springframework.test.web.servlet.setup.MockMvcBuilders;
    import org.springframework.web.context.WebApplicationContext;
    
    /**
     * @author zhailiang
     *
     */
    @RunWith(SpringRunner.class)
    @SpringBootTest
    public class UserControllerTest {
    
    	@Autowired
    	private WebApplicationContext wac;
    
    	private MockMvc mockMvc;
    
    	@Before
    	public void setup() {
    		mockMvc = MockMvcBuilders.webAppContextSetup(wac).build();
    	}
    	
    	@Test
    	public void whenUploadSuccess() throws Exception {
    		String result = mockMvc.perform(fileUpload("/file")
    				.file(new MockMultipartFile("file", "test.txt", "multipart/form-data", "hello upload".getBytes("UTF-8"))))
    				.andExpect(status().isOk())
    				.andReturn().getResponse().getContentAsString();
    		System.out.println(result);
    	}
    	
    
    	@Test
    	public void whenQuerySuccess() throws Exception {
    		String result = mockMvc.perform(
    				get("/user").param("username", "jojo").param("age", "18").param("ageTo", "60").param("xxx", "yyy")
    						// .param("size", "15")
    						// .param("page", "3")
    						// .param("sort", "age,desc")
    						.contentType(MediaType.APPLICATION_JSON_UTF8))
    				.andExpect(status().isOk()).andExpect(jsonPath("$.length()").value(3))
    				.andReturn().getResponse().getContentAsString();
    		
    		System.out.println(result);
    	}
    
    	@Test
    	public void whenGetInfoSuccess() throws Exception {
    		String result = mockMvc.perform(get("/user/1")
    				.contentType(MediaType.APPLICATION_JSON_UTF8))
    				.andExpect(status().isOk())
    				.andExpect(jsonPath("$.username").value("tom"))
    				.andReturn().getResponse().getContentAsString();
    		
    		System.out.println(result);
    	}
    	
    	@Test
    	public void whenGetInfoFail() throws Exception {
    		mockMvc.perform(get("/user/a")
    				.contentType(MediaType.APPLICATION_JSON_UTF8))
    				.andExpect(status().is4xxClientError());
    	}
    	
    	@Test
    	public void whenCreateSuccess() throws Exception {
    		
    		Date date = new Date();
    		System.out.println(date.getTime());
    		String content = "{\"username\":\"tom\",\"password\":null,\"birthday\":"+date.getTime()+"}";
    		String reuslt = mockMvc.perform(post("/user").contentType(MediaType.APPLICATION_JSON_UTF8)
    				.content(content))
    				.andExpect(status().isOk())
    				.andExpect(jsonPath("$.id").value("1"))
    				.andReturn().getResponse().getContentAsString();
    		
    		System.out.println(reuslt);
    	}
    	
    	@Test
    	public void whenCreateFail() throws Exception {
    		
    		Date date = new Date();
    		System.out.println(date.getTime());
    		String content = "{\"username\":\"tom\",\"password\":null,\"birthday\":"+date.getTime()+"}";
    		String reuslt = mockMvc.perform(post("/user").contentType(MediaType.APPLICATION_JSON_UTF8)
    				.content(content))
    //				.andExpect(status().isOk())
    //				.andExpect(jsonPath("$.id").value("1"))
    				.andReturn().getResponse().getContentAsString();
    		
    		System.out.println(reuslt);
    	}
    	
    	@Test
    	public void whenUpdateSuccess() throws Exception {
    		
    		Date date = new Date(LocalDateTime.now().plusYears(1).atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
    		System.out.println(date.getTime());
    		String content = "{\"id\":\"1\", \"username\":\"tom\",\"password\":null,\"birthday\":"+date.getTime()+"}";
    		String reuslt = mockMvc.perform(put("/user/1").contentType(MediaType.APPLICATION_JSON_UTF8)
    				.content(content))
    				.andExpect(status().isOk())
    				.andExpect(jsonPath("$.id").value("1"))
    				.andReturn().getResponse().getContentAsString();
    		
    		System.out.println(reuslt);
    	}
    	
    	@Test
    	public void whenDeleteSuccess() throws Exception {
    		mockMvc.perform(delete("/user/1")
    				.contentType(MediaType.APPLICATION_JSON_UTF8))
    				.andExpect(status().isOk());
    	}
    
    }