Spring Boot Rest控制器单元测试过程解析

下面给出了GET API测试用例的代码。 此API用于查看产品列表。

@Test
public void getProductsList() throws Exception {
  String uri = "/products";
  MvcResult mvcResult = mvc.perform(MockMvcRequestBuilders.get(uri)
   .accept(MediaType.APPLICATION_JSON_VALUE)).andReturn();

  int status = mvcResult.getResponse().getStatus();
  assertEquals(200, status);
  String content = mvcResult.getResponse().getContentAsString();
  Product[] productlist = super.mapFromJson(content, Product[].class);
  assertTrue(productlist.length > 0);
}

POST API测试用例的代码如下。 此API用于创建产品。

@Test
public void createProduct() throws Exception {
  String uri = "/products";
  Product product = new Product();
  product.setId("3");
  product.setName("Ginger");

  String inputJson = super.mapToJson(product);
  MvcResult mvcResult = mvc.perform(MockMvcRequestBuilders.post(uri)
   .contentType(MediaType.APPLICATION_JSON_VALUE).content(inputJson)).andReturn();

  int status = mvcResult.getResponse().getStatus();
  assertEquals(201, status);
  String content = mvcResult.getResponse().getContentAsString();
  assertEquals(content, "Product is created successfully");
}

下面给出了PUT API测试用例的代码。 此API用于更新现有产品。

@Test
public void updateProduct() throws Exception {
  String uri = "/products/2";
  Product product = new Product();
  product.setName("Lemon");

  String inputJson = super.mapToJson(product);
  MvcResult mvcResult = mvc.perform(MockMvcRequestBuilders.put(uri)
   .contentType(MediaType.APPLICATION_JSON_VALUE).content(inputJson)).andReturn();

  int status = mvcResult.getResponse().getStatus();
  assertEquals(200, status);
  String content = mvcResult.getResponse().getContentAsString();
  assertEquals(content, "Product is updated successsfully");
}

Delete API测试用例的代码如下。 此API将删除现有产品。

@Test
public void deleteProduct() throws Exception {
  String uri = "/products/2";
  MvcResult mvcResult = mvc.perform(MockMvcRequestBuilders.delete(uri)).andReturn();
  int status = mvcResult.getResponse().getStatus();
  assertEquals(200, status);
  String content = mvcResult.getResponse().getContentAsString();
  assertEquals(content, "Product is deleted successsfully");
}

完整的控制器测试类文件代码如下 -

package com.yiibai.demo;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import org.junit.Before;
import org.junit.Test;
import org.springframework.http.MediaType;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;

import com.yiibai.demo.model.Product;

public class ProductServiceControllerTest extends AbstractTest {
  @Override
  @Before
  public void setUp() {
   super.setUp();
  }
  @Test
  public void getProductsList() throws Exception {
   String uri = "/products";
   MvcResult mvcResult = mvc.perform(MockMvcRequestBuilders.get(uri)
     .accept(MediaType.APPLICATION_JSON_VALUE)).andReturn();

   int status = mvcResult.getResponse().getStatus();
   assertEquals(200, status);
   String content = mvcResult.getResponse().getContentAsString();
   Product[] productlist = super.mapFromJson(content, Product[].class);
   assertTrue(productlist.length > 0);
  }
  @Test
  public void createProduct() throws Exception {
   String uri = "/products";
   Product product = new Product();
   product.setId("3");
   product.setName("Ginger");
   String inputJson = super.mapToJson(product);
   MvcResult mvcResult = mvc.perform(MockMvcRequestBuilders.post(uri)
     .contentType(MediaType.APPLICATION_JSON_VALUE)
     .content(inputJson)).andReturn();

   int status = mvcResult.getResponse().getStatus();
   assertEquals(201, status);
   String content = mvcResult.getResponse().getContentAsString();
   assertEquals(content, "Product is created successfully");
  }
  @Test
  public void updateProduct() throws Exception {
   String uri = "/products/2";
   Product product = new Product();
   product.setName("Lemon");
   String inputJson = super.mapToJson(product);
   MvcResult mvcResult = mvc.perform(MockMvcRequestBuilders.put(uri)
     .contentType(MediaType.APPLICATION_JSON_VALUE)
     .content(inputJson)).andReturn();

   int status = mvcResult.getResponse().getStatus();
   assertEquals(200, status);
   String content = mvcResult.getResponse().getContentAsString();
   assertEquals(content, "Product is updated successsfully");
  }
  @Test
  public void deleteProduct() throws Exception {
   String uri = "/products/2";
   MvcResult mvcResult = mvc.perform(MockMvcRequestBuilders.delete(uri)).andReturn();
   int status = mvcResult.getResponse().getStatus();
   assertEquals(200, status);
   String content = mvcResult.getResponse().getContentAsString();
   assertEquals(content, "Product is deleted successsfully");
  }
}								 
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