Add DeprecatedMethodInvocationCounterTest (3).

dubbo-common/src/test/java/org/apache/dubbo/common/DeprecatedMethodInvocationCounterTest.java

@@ -1,8 +1,27 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.apache.dubbo.common;
 
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.util.Map;
 
 /**
@@ -18,12 +37,23 @@ void testRealInvocation() {
 
         // Invoke a deprecated method.
         URL url = URL.valueOf("dubbo://admin:hello1234@10.20.130.230:20880/context/path#index?version=1.0.0&id=org.apache.dubbo.config.RegistryConfig#0");
-        url.getServiceName();
-        url.getServiceName();
+
+        // Not a typo, intentionally invoke twice.
+        invokeDeprecatedMethod(url);
+        invokeDeprecatedMethod(url);
 
         Assertions.assertTrue(DeprecatedMethodInvocationCounter.hasThisMethodInvoked(METHOD_DEFINITION));
 
         Map<String, Integer> record = DeprecatedMethodInvocationCounter.getInvocationRecord();
         Assertions.assertEquals(2, record.get(METHOD_DEFINITION));
     }
+
+    private void invokeDeprecatedMethod(URL url) {
+        try {
+            Method m = URL.class.getMethod("getServiceName");
+            m.invoke(url);
+        } catch (InvocationTargetException | IllegalAccessException | NoSuchMethodException e) {
+            throw new RuntimeException(e);
+        }
+    }
 }