init commit (#11767)

spring-boot-modules/spring-boot-data-2/src/test/java/com/baeldung/boot/noconverterfound/NoConverterFoundIntegrationTest.java

@@ -4,6 +4,7 @@ import static org.assertj.core.api.Assertions.assertThat;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -25,16 +26,16 @@ public class NoConverterFoundIntegrationTest {
     /* Remove Getters from Student class to successfully run this test case
      * @Test
     public void whenGettersNotDefined_thenThrowException() throws Exception {
-
+    
         String url = "/api/student/1";
-
+    
         this.mockMvc.perform(get(url))
           .andExpect(status().isInternalServerError())
           .andExpect(result -> assertThat(result.getResolvedException())
             .isInstanceOf(HttpMessageNotWritableException.class))
           .andExpect(result -> assertThat(result.getResolvedException().getMessage())
             .contains("No converter found for return value of type"));
-
+    
     }
     */
 
@@ -44,9 +45,28 @@ public class NoConverterFoundIntegrationTest {
         String url = "/api/student/2";
 
         this.mockMvc.perform(get(url))
-          .andExpect(status().isOk())
-          .andExpect(jsonPath("$.firstName").value("John"));
+            .andExpect(status().isOk())
+            .andExpect(jsonPath("$.firstName").value("John"));
+    }
 
+    @Test
+    public void whenJsonConverterIsFound_thenReturnResponse() throws Exception {
+        String url = "/api/student/v2/1";
+
+        this.mockMvc.perform(get(url))
+            .andExpect(status().isOk())
+            .andExpect(content().json("{'id':1,'firstName':'Kevin','lastName':'Cruyff', 'grade':'AA'}"));
+    }
+
+    @Test
+    public void whenConverterNotFound_thenThrowException() throws Exception {
+        String url = "/api/student/v3/1";
+
+        this.mockMvc.perform(get(url))
+            .andExpect(status().isInternalServerError())
+            .andExpect(result -> assertThat(result.getResolvedException()).isInstanceOf(HttpMessageNotWritableException.class))
+            .andExpect(result -> assertThat(result.getResolvedException()
+                .getMessage()).contains("No converter for [class com.baeldung.boot.noconverterfound.model.Student] with preset Content-Type"));
     }
 
 }