BAEL-2268 - Guide to JerseyTest (#5443)

* BAEL-2268 - Guide to JerseyTest
-  second attempt without formatting changes

* BAEL-2268 - Guide to JerseyTest

- Add line break to end of file

jersey/src/main/java/com/baeldung/jersey/server/model/Fruit.java

@@ -54,4 +54,9 @@ public class Fruit {
     public void setSerial(String serial) {
         this.serial = serial;
     }
+    
+    @Override
+    public String toString() {
+        return "Fruit [name: " + getName() + " colour: " + getColour() + "]";
+    }
 }

jersey/src/main/java/com/baeldung/jersey/server/rest/FruitResource.java

@@ -16,6 +16,8 @@ import javax.ws.rs.Path;
 import javax.ws.rs.PathParam;
 import javax.ws.rs.Produces;
 import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
 
 import org.glassfish.jersey.server.mvc.ErrorTemplate;
 import org.glassfish.jersey.server.mvc.Template;
@@ -86,6 +88,16 @@ public class FruitResource {
     public void createFruit(@Valid Fruit fruit) {
         SimpleStorageService.storeFruit(fruit);
     }
+    
+    @POST
+    @Path("/created")
+    @Consumes(MediaType.APPLICATION_JSON)
+    public Response createNewFruit(@Valid Fruit fruit) {
+        String result = "Fruit saved : " + fruit;
+        return Response.status(Status.CREATED.getStatusCode())
+            .entity(result)
+            .build();
+    }
 
     @GET
     @Valid

jersey/src/test/java/com/baeldung/jersey/server/GreetingsResourceIntegrationTest.java

@@ -0,0 +1,33 @@
+package com.baeldung.jersey.server;
+
+import static org.junit.Assert.assertEquals;
+
+import javax.ws.rs.core.Application;
+import javax.ws.rs.core.HttpHeaders;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
+
+import org.glassfish.jersey.server.ResourceConfig;
+import org.glassfish.jersey.test.JerseyTest;
+import org.junit.Test;
+
+public class GreetingsResourceIntegrationTest extends JerseyTest {
+
+    @Override
+    protected Application configure() {
+        return new ResourceConfig(Greetings.class);
+    }
+
+    @Test
+    public void givenGetHiGreeting_whenCorrectRequest_thenResponseIsOkAndContainsHi() {
+        Response response = target("/greetings/hi").request()
+            .get();
+
+        assertEquals("Http Response should be 200: ", Status.OK.getStatusCode(), response.getStatus());
+        assertEquals("Http Content-Type should be: ", MediaType.TEXT_HTML, response.getHeaderString(HttpHeaders.CONTENT_TYPE));
+
+        String content = response.readEntity(String.class);
+        assertEquals("Content of ressponse is: ", "hi", content);
+    }
+}

jersey/src/test/java/com/baeldung/jersey/server/rest/FruitResourceIntegrationTest.java

@@ -10,6 +10,7 @@ import javax.ws.rs.core.Application;
 import javax.ws.rs.core.Form;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
 
 import org.glassfish.jersey.test.JerseyTest;
 import org.glassfish.jersey.test.TestProperties;
@@ -63,6 +64,15 @@ public class FruitResourceIntegrationTest extends JerseyTest {
         assertEquals("Http Response should be 400 ", 400, response.getStatus());
         assertThat(response.readEntity(String.class), containsString("Fruit colour must not be null"));
     }
+    
+    @Test
+    public void givenCreateFruit_whenJsonIsCorrect_thenResponseCodeIsCreated() {
+        Response response = target("fruit/created").request()
+            .post(Entity.json("{\"name\":\"strawberry\",\"weight\":20}"));
+
+        assertEquals("Http Response should be 201 ", Status.CREATED.getStatusCode(), response.getStatus());
+        assertThat(response.readEntity(String.class), containsString("Fruit saved : Fruit [name: strawberry colour: null]"));
+    }
 
     @Test
     public void givenUpdateFruit_whenFormContainsBadSerialParam_thenResponseCodeIsBadRequest() {
@@ -102,6 +112,23 @@ public class FruitResourceIntegrationTest extends JerseyTest {
             .get(String.class);
         assertThat(json, containsString("{\"name\":\"strawberry\",\"weight\":20}"));
     }
+    
+    @Test
+    public void givenFruitExists_whenSearching_thenResponseContainsFruitEntity() {
+        Fruit fruit = new Fruit();
+        fruit.setName("strawberry");
+        fruit.setWeight(20);
+        Response response = target("fruit/create").request(MediaType.APPLICATION_JSON_TYPE)
+            .post(Entity.entity(fruit, MediaType.APPLICATION_JSON_TYPE));
+
+        assertEquals("Http Response should be 204 ", 204, response.getStatus());
+
+        final Fruit entity = target("fruit/search/strawberry").request()
+            .get(Fruit.class);
+
+        assertEquals("Fruit name: ", "strawberry", entity.getName());
+        assertEquals("Fruit weight: ", Integer.valueOf(20), entity.getWeight());
+    }
 
     @Test
     public void givenFruit_whenFruitIsInvalid_thenReponseContainsCustomExceptions() {