diff --git a/dubbo-config/src/test/java/com/alibaba/dubbo/config/ConfigTest.java b/dubbo-config/src/test/java/com/alibaba/dubbo/config/ConfigTest.java
index 18411c6ba896f6d601151b9ce444efcc9e98e1ce..06626424fc1f12710ca2fd221aa057a846aec348 100644
--- a/dubbo-config/src/test/java/com/alibaba/dubbo/config/ConfigTest.java
+++ b/dubbo-config/src/test/java/com/alibaba/dubbo/config/ConfigTest.java
@@ -58,6 +58,11 @@ public class ConfigTest {
         reference.setInterface(DemoService.class);
         reference.setUrl("dubbo://127.0.0.1:20881");
         Assert.assertEquals("<dubbo:reference url=\"dubbo://127.0.0.1:20881\" interface=\"com.alibaba.dubbo.config.api.DemoService\" />", reference.toString());
+        String str = reference.toString();
+        Assert.assertTrue(str.startsWith("<dubbo:reference "));
+        Assert.assertTrue(str.contains(" url=\"dubbo://127.0.0.1:20881\" "));
+        Assert.assertTrue(str.contains(" interface=\"com.alibaba.dubbo.config.api.DemoService\" "));
+        Assert.assertTrue(str.endsWith(" />"));
     }
     
     @Test