Add a couple of new integration test samples

configserver-eureka: a vanilla config server that is a eureka client
eureka-first: a eureka client that diecovers the config server
through eureka

configserver-eureka/src/test/java/demo/ConfigServerEurekaApplicationTests.java

@@ -0,0 +1,33 @@
+package demo;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.SpringApplicationConfiguration;
+import org.springframework.cloud.client.discovery.DiscoveryClient;
+import org.springframework.cloud.netflix.eureka.EurekaDiscoveryClient;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.web.WebAppConfiguration;
+
+import static org.junit.Assert.*;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringApplicationConfiguration(classes = ConfigServerEurekaApplication.class)
+@WebAppConfiguration
+@DirtiesContext
+public class ConfigServerEurekaApplicationTests {
+
+	@Autowired
+	DiscoveryClient discoveryClient;
+
+	@Test
+	public void contextLoads() {
+	}
+
+	@Test
+	public void discoveryClientIsEureka() {
+		assertTrue("discoveryClient is wrong type", discoveryClient instanceof EurekaDiscoveryClient);
+	}
+
+}