SpringBoot2种单元测试方法解析

@RunWith(SpringRunner.class)
@SpringBootTest
public class TestApplicationTests {
  @Test
  public void testOne(){
    System.out.println("test hello 1");
    TestCase.assertEquals(1, 1);   
  } 
  @Test
  public void testTwo(){
    System.out.println("test hello 2");
    TestCase.assertEquals(1, 1);    
  }  
  @Before
  public void testBefore(){
    System.out.println("before");
  }  
  @After
  public void testAfter(){
    System.out.println("after");
  }​
}

2019-10-28 21:17:25.466 INFO 18872 --- [      main] com.example.demo.TestApplicationTests  : Started TestApplicationTests in 1.131 seconds (JVM running for 5.525)
before
test hello 1
after
before
test hello 2
after

import org.junit.*;
import org.junit.runner.*;
import org.springframework.beans.factory.annotation.*;
import org.springframework.boot.test.autoconfigure.web.servlet.*;
import org.springframework.boot.test.mock.mockito.*;
​
import static org.assertj.core.api.Assertions.*;
import static org.mockito.BDDMockito.*;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
​
@RunWith(SpringRunner.class)
@WebMvcTest(UserVehicleController.class)
public class MyControllerTests {
​
  @Autowired
  private MockMvc mvc;
​
  @MockBean
  private UserVehicleService userVehicleService;
​
  @Test
  public void testExample() throws Exception {
    given(this.userVehicleService.getVehicleDetails("sboot"))
        .willReturn(new VehicleDetails("Honda", "Civic"));
    this.mvc.perform(get("/sboot/vehicle").accept(MediaType.TEXT_PLAIN))
        .andExpect(status().isOk()).andExpect(content().string("Honda Civic"));
  }
}

import com.gargoylesoftware.htmlunit.*;
import org.junit.*;
import org.junit.runner.*;
import org.springframework.beans.factory.annotation.*;
import org.springframework.boot.test.autoconfigure.web.servlet.*;
import org.springframework.boot.test.mock.mockito.*;
​
import static org.assertj.core.api.Assertions.*;
import static org.mockito.BDDMockito.*;
​
@RunWith(SpringRunner.class)
@WebMvcTest(UserVehicleController.class)
public class MyHtmlUnitTests {
​
  @Autowired
  private WebClient webClient;
​
  @MockBean
  private UserVehicleService userVehicleService;
​
  @Test
  public void testExample() throws Exception {
    given(this.userVehicleService.getVehicleDetails("sboot"))
        .willReturn(new VehicleDetails("Honda", "Civic"));
    HtmlPage page = this.webClient.getPage("/sboot/vehicle.html");
    assertThat(page.getBody().getTextContent()).isEqualTo("Honda Civic");
  }
​
}

@RunWith(SpringRunner.class) //底层用junit SpringJUnit4ClassRunner
//@SpringBootTest(classes={TestApplicationTests.class}) //启动整个springboot工程
//@AutoConfigureMockMvc 
@WebMvcTest(TestController.class)
public class MockMvcTestDemo {  
  @Autowired
  private MockMvc mockMvc;  
  @Test
  public void apiTest() throws Exception {  
    MvcResult mvcResult = mockMvc.perform( MockMvcRequestBuilders.get("/test/hello") ).
        andExpect( MockMvcResultMatchers.status().isOk() ).andReturn();
    int status = mvcResult.getResponse().getStatus();
    System.out.println(status);
    
     String responseString = mockMvc.perform( MockMvcRequestBuilders.get("/test/hello") ).
        andExpect( MockMvcResultMatchers.status().isOk() ).andDo(print())     //打印出请求和相应的内容
     .andReturn().getResponse().getContentAsString();
     System.out.println(responseString);   
  } 
}
@RestController
public class TestController {
  
  @RequestMapping("/test/hello")
  public String test() {
    return "hello";
  }
​}
​

2019-10-28 22:02:18.022 INFO 5736 --- [      main] com.example.demo.MockMvcTestDemo     : Started MockMvcTestDemo in 2.272 seconds (JVM running for 3.352)
​
MockHttpServletRequest:
   HTTP Method = GET
   Request URI = /test/hello
    Parameters = {}
     Headers = []
       Body = <no character encoding set>
  Session Attrs = {}
​
Handler:
       Type = com.example.demo.web.TestController
      Method = public java.lang.String com.example.demo.web.TestController.test()
​
Async:
  Async started = false
   Async result = null
​
Resolved Exception:
       Type = null
​
ModelAndView:
    View name = null
       View = null
      Model = null
​
FlashMap:
    Attributes = null
​
MockHttpServletResponse:
      Status = 200
  Error message = null
     Headers = [Content-Type:"text/plain;charset=UTF-8", Content-Length:"5"]
   Content type = text/plain;charset=UTF-8
       Body = hello
  Forwarded URL = null
  Redirected URL = null
     Cookies = []
hello