Testing Java with JUnit 5 & Mockito学习资料

package com.appsdeveloperblog.tutorials.junit.ui.controllers; import com.appsdeveloperblog.tutorials.junit.service.UsersService; import com.appsdeveloperblog.tutorials.junit.service.UsersServiceImpl; import com.appsdeveloperblog.tutorials.junit.shared.UserDto; import com.appsdeveloperblog.tutorials.junit.ui.request.UserDetailsRequestModel; import com.appsdeveloperblog.tutorials.junit.ui.response.UserRest; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.ObjectMapper; import org.junit.jupiter.api.Assertions; import org.junit.jupiter.api.BeforeEach; import org.junit.jupiter.api.DisplayName; import org.junit.jupiter.api.Test; import org.modelmapper.ModelMapper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration; import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc; import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest; import org.springframework.boot.test.mock.mockito.MockBean; import org.springframework.http.HttpStatus; import org.springframework.http.MediaType; import org.springframework.test.web.servlet.MockMvc; import org.springframework.test.web.servlet.MvcResult; import org.springframework.test.web.servlet.RequestBuilder; import org.springframework.test.web.servlet.request.MockMvcRequestBuilders; import java.util.UUID; import static org.mockito.ArgumentMatchers.any; import static org.mockito.Mockito.when; @WebMvcTest(controllers = UsersController.class, excludeAutoConfiguration = {SecurityAutoConfiguration.class}) //@AutoConfigureMockMvc(addFilters = false) //@MockBean({UsersServiceImpl.class}) public class UsersControllerWebLayerTest { @Autowired private MockMvc mockMvc; @MockBean //@Autowired UsersService usersService; private UserDetailsRequestModel userDetailsRequestModel; @BeforeEach void setup() { userDetailsRequestModel = new UserDetailsRequestModel(); userDetailsRequestModel.setFirstName("Sergey"); userDetailsRequestModel.setLastName("Kargopolov"); userDetailsRequestModel.setEmail("test@test.com"); userDetailsRequestModel.setPassword("12345678"); } @Test @DisplayName("User can be created") void testCreateUser_whenValidUserDetailsProvided_returnsCreatedUserDetails() throws Exception { // Arrange UserDto userDto = new ModelMapper().map(userDetailsRequestModel, UserDto.class); userDto.setUserId(UUID.randomUUID().toString()); when(usersService.createUser(any(UserDto.class))).thenReturn(userDto); RequestBuilder requestBuilder = MockMvcRequestBuilders.post("/users") .contentType(MediaType.APPLICATION_JSON) .accept(MediaType.APPLICATION_JSON) .content(new ObjectMapper().writeValueAsString(userDetailsRequestModel)); // Act MvcResult mvcResult = mockMvc.perform(requestBuilder).andReturn(); String responseBodyAsString = mvcResult.getResponse().getContentAsString(); UserRest createdUser = new ObjectMapper() .readValue(responseBodyAsString, UserRest.class); // Assert Assertions.assertEquals(userDetailsRequestModel.getFirstName(), createdUser.getFirstName(), "The returned user first name is most likely incorrect"); Assertions.assertEquals(userDetailsRequestModel.getLastName(), createdUser.getLastName(), "The returned user last name is incorrect"); Assertions.assertEquals(userDetailsRequestModel.getEmail(), createdUser.getEmail(), "The returned user email is incorrect"); Assertions.assertFalse(createdUser.getUserId().isEmpty(), "userId should not be empty"); } @Test @DisplayName("First name is not empty") void testCreateUser_whenFirstNameIsNotProvided_returns400StatusCode() throws Exception { // Arrange userDetailsRequestModel.setFirstName(""); RequestBuilder requestBuilder = MockMvcRequestBuilders.post("/users") .contentType(MediaType.APPLICATION_JSON) .accept(MediaType.APPLICATION_JSON) .content(new ObjectMapper().writeValueAsString(userDetailsRequestModel)); // Act MvcResult mvcResult = mockMvc.perform(requestBuilder).andReturn(); // Assert Assertions.assertEquals(HttpStatus.BAD_REQUEST.value(), mvcResult.getResponse().getStatus(), "Incorrect HTTP Status Code returned"); } @Test @DisplayName("First name cannot be shorter than 2 characters") void testCreateUser_whenFirstNameIsOnlyOneCharacter_returns400StatusCode() throws Exception { // Arrange userDetailsRequestModel.setFirstName("a"); RequestBuilder requestBuilder = MockMvcRequestBuilders.post("/users") .content(new ObjectMapper().writeValueAsString(userDetailsRequestModel)) .contentType(MediaType.APPLICATION_JSON) .accept(MediaType.APPLICATION_JSON); // Act MvcResult result = mockMvc.perform(requestBuilder).andReturn(); // Assert Assertions.assertEquals(HttpStatus.BAD_REQUEST.value(), result.getResponse().getStatus(), "HTTP Status code is not set to 400"); } }