Fix testResolveIp

Author: slandelle

netty-bp/resolver-dns/src/test/java/io/netty/resolver/dns/DnsNameResolverTest.java

@@ -492,17 +492,17 @@ private UnknownHostException resolveNonExistentDomain(DnsNameResolver resolver)
         }
     }
 
-//    @Test
-//    public void testResolveIp() {
-//        DnsNameResolver resolver = newResolver().build();
-//        try {
-//            InetAddress address = resolver.resolve("10.0.0.1").syncUninterruptibly().getNow();
-//
-//            assertEquals("10.0.0.1", address.getHostName());
-//        } finally {
-//            resolver.close();
-//        }
-//    }
+    @Test
+    public void testResolveIp() {
+        DnsNameResolver resolver = newResolver().build();
+        try {
+            InetAddress address = resolver.resolve("10.0.0.1").syncUninterruptibly().getNow();
+
+            assertEquals("10.0.0.1", address.getHostAddress());
+        } finally {
+            resolver.close();
+        }
+    }
 
     private void resolve(DnsNameResolver resolver, Map<String, Future<InetAddress>> futures, String hostname) {