code: // Licensed to the Software Freedom Conservancy (SFC) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The SFC 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.openqa.selenium.devtools;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.openqa.selenium.testing.drivers.Browser.FIREFOX;
  
  import java.util.List;
  import java.util.concurrent.CompletableFuture;
  import java.util.concurrent.ExecutionException;
  import java.util.concurrent.TimeUnit;
  import java.util.concurrent.TimeoutException;
  import org.junit.jupiter.api.Test;
  import org.openqa.selenium.By;
  import org.openqa.selenium.devtools.events.ConsoleEvent;
  import org.openqa.selenium.devtools.idealized.runtime.model.RemoteObject;
  import org.openqa.selenium.environment.webserver.Page;
  import org.openqa.selenium.testing.Ignore;
  
  class ConsoleEventsTest extends DevToolsTestBase {
  
    @Test
    @Ignore(value = FIREFOX, reason = "https://bugzilla.mozilla.org/show_bug.cgi?id=1819965")
    public void canWatchConsoleEvents()
        throws InterruptedException, ExecutionException, TimeoutException {
      String page =
          appServer.create(
              new Page()
                  .withBody("<div id='button' onclick='helloWorld()'>click me</div>")
                  .withScripts("function helloWorld() { console.log('Hello, world!') }"));
      driver.get(page);
  
      CompletableFuture<ConsoleEvent> future = new CompletableFuture<>();
      devTools.getDomains().events().addConsoleListener(future::complete);
      driver.findElement(By.id("button")).click();
      ConsoleEvent event = future.get(5, TimeUnit.SECONDS);
  
      assertThat(event.getType()).isEqualTo("log");
      assertThat(event.getMessages()).containsExactly("Hello, world!");
    }
  
    @Test
    @Ignore(value = FIREFOX, reason = "https://bugzilla.mozilla.org/show_bug.cgi?id=1819965")
    public void canWatchConsoleEventsWithArgs()
        throws InterruptedException, ExecutionException, TimeoutException {
      String page =
          appServer.create(
              new Page()
                  .withBody("<div id='button' onclick='helloWorld()'>click me</div>")
                  .withScripts("function helloWorld() { console.log(\"array\", [1, 2, 3]) }"));
      driver.get(page);
  
      CompletableFuture<ConsoleEvent> future = new CompletableFuture<>();
      devTools.getDomains().events().addConsoleListener(future::complete);
      driver.findElement(By.id("button")).click();
      ConsoleEvent event = future.get(5, TimeUnit.SECONDS);
  
      assertThat(event.getType()).isEqualTo("log");
      List<Object> args = event.getArgs();
      // Ensure args returned by CDP protocol are maintained
      assertThat(args).isNotInstanceOf((RemoteObject.class));
    }
  }
  