@@ -0,0 +1,1579 @@
+/*%0A * Licensed to the Apache Software Foundation (ASF) under one or more%0A * contributor license agreements.  See the NOTICE file distributed with%0A * this work for additional information regarding copyright ownership.%0A * The ASF licenses this file to You under the Apache License, Version 2.0%0A * (the %22License%22); you may not use this file except in compliance with%0A * the License.  You may obtain a copy of the License at%0A *%0A *     http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */%0A%0Apackage org.apache.dubbo.rpc;%0A%0Aimport org.junit.jupiter.api.Assertions;%0Aimport org.junit.jupiter.api.Test;%0A%0Aimport java.util.concurrent.TimeUnit;%0A%0Apublic class TimeoutCountDownTest %7B%0A%0A    @Test%0A    public void testTimeoutCountDown() throws InterruptedException %7B%0A        TimeoutCountDown timeoutCountDown = TimeoutCountDown.newCountDown(5, TimeUnit.SECONDS);%0A        Assertions.assertEquals(5 * 1000, timeoutCountDown.getTimeoutInMilli());%0A        Assertions.assertFalse(timeoutCountDown.isExpired());%0A        Assertions.assertTrue(timeoutCountDown.timeRemaining(TimeUnit.SECONDS) %3E 0);%0A%0A        Thread.sleep(6 * 1000);%0A%0A        Assertions.assertTrue(timeoutCountDown.isExpired());%0A        Assertions.assertTrue(timeoutCountDown.timeRemaining(TimeUnit.SECONDS) %3C= 0);%0A    %7D%0A%7D%0A

add test case for TimeoutCountDown (#7662)