added spring-boot-starter-actuator so /hystrix.stream works and added test

fixes gh-2

hystrix/pom.xml

@@ -28,6 +28,10 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-web</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-actuator</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-starter-hystrix</artifactId>

hystrix/src/test/java/demo/HystrixApplicationTests.java

@@ -2,6 +2,7 @@ package demo;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -15,6 +16,9 @@ import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import org.springframework.test.context.web.WebAppConfiguration;
 
+import java.io.InputStream;
+import java.net.URL;
+
 @RunWith(SpringJUnit4ClassRunner.class)
 @SpringApplicationConfiguration(classes = HystrixApplication.class)
 @IntegrationTest("server.port=0")
@@ -40,4 +44,20 @@ public class HystrixApplicationTests {
 		assertEquals("Bad status code", HttpStatus.OK, response.getStatusCode());
 		assertEquals("Wrong response text", "from the fallback", response.getBody());
 	}
+
+	@Test
+	public void hystrixStreamWorks() throws Exception {
+		String url = "http://localhost:" + port;
+		//you have to hit a Hystrix circuit breaker before the stream sends anything
+		ResponseEntity<String> response = new TestRestTemplate().getForEntity(url, String.class);
+		assertEquals("bad response code", HttpStatus.OK, response.getStatusCode());
+
+		URL hystrixUrl = new URL(url + "/hystrix.stream");
+		InputStream in = hystrixUrl.openStream();
+		byte[] buffer = new byte[1024];
+		in.read(buffer);
+		String contents = new String(buffer);
+		assertTrue(contents.contains("ping"));
+		in.close();
+	}
 }