/*
 * 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.geode.test.dunit.examples;

import static org.apache.geode.test.dunit.VM.getAllVMs;

import java.util.ArrayList;
import java.util.List;

import org.junit.Rule;
import org.junit.Test;

import org.apache.geode.test.dunit.AsyncInvocation;
import org.apache.geode.test.dunit.VM;
import org.apache.geode.test.dunit.rules.DistributedRule;

public class AsyncInvokeRunnableExampleTest {

  @Rule
  public DistributedRule distributedRule = new DistributedRule();

  @Test
  public void invokeAsyncHelloWorldInEachVM() {
    for (VM vm : getAllVMs()) {
      vm.invokeAsync(() -> System.out.println(vm + " says Hello World!"));
    }
  }

  @Test
  public void invokeAsyncHelloWorldInEachVMWithAwait() throws Exception {
    List<AsyncInvocation<Void>> invocations = new ArrayList<>();
    for (VM vm : getAllVMs()) {
      AsyncInvocation<Void> invocation =
          vm.invokeAsync(() -> System.out.println(vm + " says Hello World!"));
      invocations.add(invocation);
    }
    for (AsyncInvocation<Void> invocation : invocations) {
      invocation.await();
    }
  }
}
