SCB-1487 add unit test

Signed-off-by: kakulisen <18813972746@163.com>
diff --git a/contractgen/src/test/java/org/apache/servicecomb/toolkit/contractgen/DefaultContractsGeneratorTest.java b/contractgen/src/test/java/org/apache/servicecomb/toolkit/contractgen/DefaultContractsGeneratorTest.java
index f9f5ac7..d907929 100644
--- a/contractgen/src/test/java/org/apache/servicecomb/toolkit/contractgen/DefaultContractsGeneratorTest.java
+++ b/contractgen/src/test/java/org/apache/servicecomb/toolkit/contractgen/DefaultContractsGeneratorTest.java
@@ -37,6 +37,7 @@
 import java.util.Map;
 import java.util.concurrent.TimeoutException;
 
+import javax.ws.rs.Path;
 import org.apache.maven.artifact.DependencyResolutionRequiredException;
 import org.apache.maven.plugin.testing.resources.TestResources;
 import org.apache.maven.project.MavenProject;
@@ -147,6 +148,9 @@
 
     mockClass = contractTestUtil.putAnnotationToClass("TestRequestMapping", RequestMapping.class);
     assertThat(method.invoke("TestRequestMapping", mockClass), is(true));
+
+    mockClass = contractTestUtil.putAnnotationToClass("TestPath", Path.class);
+    assertThat(method.invoke("TestPath", mockClass), is(true));
   }
 
   @Test