[BAEL-4829] Multipart request in spring

spring-web-modules/spring-mvc-forms-thymeleaf/src/test/java/com/baeldung/multipartupload/EmployeeControllerIntegrationTest.java

@@ -0,0 +1,56 @@
+package com.baeldung.multipartupload;
+
+import org.junit.jupiter.api.Test;
+import org.mockito.BDDMockito;
+import org.mockito.Mockito;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.mock.web.MockMultipartFile;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.web.servlet.config.annotation.EnableWebMvc;
+
+import static org.apache.http.entity.ContentType.DEFAULT_BINARY;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.multipart;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@WebMvcTest
+@EnableWebMvc
+public class EmployeeControllerIntegrationTest {
+
+    private static final MockMultipartFile A_FILE = new MockMultipartFile("document", null, DEFAULT_BINARY.toString(), "Employee Record".getBytes());
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @MockBean
+    private EmployeeService employeeService;
+
+    @Test
+    public void givenFormData_whenPost_thenReturns200OK() throws Exception {
+
+        mockMvc.perform(multipart("/employee")
+          .file(A_FILE)
+          .param("name", "testname"))
+          .andExpect(status().isOk());
+    }
+
+    @Test
+    public void givenEmployeeJsonAndMultipartFile_whenPostWithRequestPart_thenReturnsOK() throws Exception {
+        MockMultipartFile employeeJson = new MockMultipartFile("employee", null,
+          "application/json", "{\"name\": \"Emp Name\"}".getBytes());
+
+        mockMvc.perform(multipart("/requestpart/employee")
+          .file(A_FILE)
+          .file(employeeJson))
+          .andExpect(status().isOk());
+    }
+
+    @Test
+    public void givenRequestPartAndRequestParam_whenPost_thenReturns200OK() throws Exception {
+        mockMvc.perform(multipart("/requestparam/employee")
+          .file(A_FILE)
+          .param("name", "testname"))
+          .andExpect(status().isOk());
+    }
+}