/*
 * 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.shardingsphere.proxy.backend.communication.jdbc.connection;

import org.junit.Test;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.not;
import static org.junit.Assert.assertThat;

public final class ResourceLockTest {
    
    @Test
    public void assertDoAwait() throws InterruptedException {
        int numberOfThreads = 10;
        ResourceLock resourceLock = new ResourceLock();
        ExecutorService service = Executors.newFixedThreadPool(numberOfThreads);
        CountDownLatch latch = new CountDownLatch(numberOfThreads);
        AtomicInteger counter = new AtomicInteger();
        for (int i = 0; i < numberOfThreads; i++) {
            service.submit(() -> {
                resourceLock.doAwait();
                counter.incrementAndGet();
                latch.countDown();
            });
        }
        latch.await();
        assertThat(numberOfThreads, is(counter.get()));
    }
    
    @Test
    public void assertDoAwaitThrowsException() throws InterruptedException {
        int numberOfThreads = 10;
        ResourceLock resourceLock = new ResourceLock();
        ExecutorService service = Executors.newFixedThreadPool(numberOfThreads);
        CountDownLatch latch = new CountDownLatch(numberOfThreads);
        AtomicInteger counter = new AtomicInteger();
        for (int i = 0; i < numberOfThreads; i++) {
            service.submit(() -> {
                resourceLock.doAwait();
                counter.incrementAndGet();
                latch.countDown();
            });
        }
        latch.await(100, TimeUnit.MILLISECONDS);
        service.shutdownNow();
        assertThat(numberOfThreads, not(counter.get()));
    }
    
    @Test
    public void assertDoNotify() throws InterruptedException {
        int numberOfThreads = 10;
        ResourceLock resourceLock = new ResourceLock();
        ExecutorService service = Executors.newFixedThreadPool(numberOfThreads);
        CountDownLatch latch = new CountDownLatch(numberOfThreads);
        AtomicInteger counter = new AtomicInteger();
        for (int i = 0; i < numberOfThreads; i++) {
            service.submit(() -> {
                resourceLock.doAwait();
                counter.incrementAndGet();
                latch.countDown();
                resourceLock.doNotify();
            });
        }
        latch.await();
        assertThat(numberOfThreads, is(counter.get()));
    }
}

@@ -904,52 +904,8 @@
 t;%0A%0A
-import java.util.concurrent.CountDownLatch;%0A
 impo
@@ -988,185 +988,8 @@
 rs;%0A
-import java.util.concurrent.TimeUnit;%0Aimport java.util.concurrent.atomic.AtomicInteger;%0A%0Aimport static org.hamcrest.CoreMatchers.is;%0Aimport static org.hamcrest.CoreMatchers.not;
 %0Aimp
@@ -1023,19 +1023,19 @@
 .assertT
-hat
+rue
 ;%0A%0Apubli
@@ -1118,71 +1118,9 @@
 t() 
-throws InterruptedException %7B%0A        int numberOfThreads = 10;
+%7B
 %0A   
@@ -1184,1855 +1184,558 @@
     
-ExecutorService service = Executors.newFixedThreadPool(numberOfThreads);%0A        CountDownLatch latch = new CountDownLatch(numberOfThreads);%0A        AtomicInteger counter = new AtomicInteger();%0A        for (int i = 0; i %3C numberOfThreads; i++) %7B%0A            service.submit(() -%3E %7B%0A                resourceLock.doAwait();%0A                counter.incrementAndGet();%0A                latch.countDown();%0A            %7D);%0A        %7D%0A        latch.await();%0A        assertThat(numberOfThreads, is(counter.get()));%0A    %7D%0A    %0A    @Test%0A    public void assertDoAwaitThrowsException() throws InterruptedException %7B%0A        int numberOfThreads = 10;%0A        ResourceLock resourceLock = new ResourceLock();%0A        ExecutorService service = Executors.newFixedThreadPool(numberOfThreads);%0A        CountDownLatch latch = new CountDownLatch(numberOfThreads);%0A        AtomicInteger counter = new AtomicInteger();%0A        for (int i = 0; i %3C numberOfThreads; i++) %7B%0A            service.submit(() -%3E %7B%0A                resourceLock.doAwait();%0A                counter.incrementAndGet();%0A                latch.countDown();%0A            %7D);%0A        %7D%0A        latch.await(100, TimeUnit.MILLISECONDS);%0A        service.shutdownNow();%0A        assertThat(numberOfThreads, not(counter.get()));%0A    %7D%0A    %0A    @Test%0A    public void assertDoNotify() throws InterruptedException %7B%0A        int numberOfThreads = 10;%0A        ResourceLock resourceLock = new ResourceLock();%0A        ExecutorService service = Executors.newFixedThreadPool(numberOfThreads);%0A        CountDownLatch latch = new CountDownLatch(numberOfThreads);%0A        AtomicInteger counter = new AtomicInteger();%0A        for (int i = 0; i %3C numberOfThreads; i++) %7B%0A            service.submit(() -%3E %7B%0A                resourceLock.doAwait();%0A                counter.incrementAndGet();%0A                latch.countDown();%0A    
+long startTime = System.currentTimeMillis();%0A        resourceLock.doAwait();%0A        assertTrue(System.currentTimeMillis() - startTime %3E= 200L);%0A    %7D%0A    %0A    @Test%0A    public void assertDoNotify() %7B%0A        ResourceLock resourceLock = new ResourceLock();%0A        long startTime = System.currentTimeMillis();%0A        ExecutorService executorService = Executors.newFixedThreadPool(1);%0A        executorService.submit(() -%3E %7B%0A            try %7B%0A                Thread.sleep(50L);%0A            %7D catch (final InterruptedException ignored) %7B%0A            %7D%0A
     
@@ -1775,20 +1775,16 @@
         
-    
 %7D);%0A    
@@ -1791,25 +1791,24 @@
     
-%7D%0A        latch.a
+resourceLock.doA
 wait
@@ -1830,46 +1830,57 @@
 ertT
-hat(numberOfThreads, is(counter.get())
+rue(System.currentTimeMillis() - startTime %3C 200L
 );%0A 

Refactor ResourceLockTest to remove unstable test cases (#8353)