BAEL-503: initial commit of a simple Spring AMQL example application (#1467)

spring-amqp-simple/src/test/java/com/baeldung/springamqpsimple/MessageControllerTest.java

@@ -0,0 +1,45 @@
+package com.baeldung.springamqpsimple;
+
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.amqp.rabbit.core.RabbitTemplate;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Mockito.verify;
+
+@RunWith(SpringRunner.class)
+@ActiveProfiles("test")
+@SpringBootTest(webEnvironment=SpringBootTest.WebEnvironment.RANDOM_PORT)
+public class MessageControllerTest {
+
+    @Autowired
+    private TestRestTemplate restTemplate;
+
+    @MockBean
+    private RabbitTemplate rabbitTemplate;
+
+    @Test
+    public void whenPostingMessage_thenMessageIsCreated() {
+        final String message = "Hello World!";
+        ResponseEntity<Void> responseEntity = restTemplate.postForEntity("/messages", message, Void.class);
+
+        assertEquals(HttpStatus.CREATED, responseEntity.getStatusCode());
+    }
+
+    @Test
+    public void whenPostingMessage_thenMessageIsSentToBroker() {
+        final String message = "Hello World!";
+        restTemplate.postForEntity("/messages", message, Void.class);
+
+        verify(rabbitTemplate).convertAndSend(SpringAmqpConfig.queueName, message);
+    }
+}