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.bidi;
  
  import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
  import static org.openqa.selenium.testing.Safely.safelyCall;
  import static org.openqa.selenium.testing.drivers.Browser.CHROME;
  import static org.openqa.selenium.testing.drivers.Browser.EDGE;
  import static org.openqa.selenium.testing.drivers.Browser.IE;
  import static org.openqa.selenium.testing.drivers.Browser.SAFARI;
  
  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.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.openqa.selenium.By;
  import org.openqa.selenium.bidi.browsingcontext.BrowsingContext;
  import org.openqa.selenium.bidi.browsingcontext.NavigationResult;
  import org.openqa.selenium.bidi.browsingcontext.ReadinessState;
  import org.openqa.selenium.bidi.log.JavascriptLogEntry;
  import org.openqa.selenium.bidi.log.LogLevel;
  import org.openqa.selenium.environment.webserver.AppServer;
  import org.openqa.selenium.environment.webserver.NettyAppServer;
  import org.openqa.selenium.testing.JupiterTestBase;
  import org.openqa.selenium.testing.NotYetImplemented;
  
  class BiDiTest extends JupiterTestBase {
  
    String page;
    private AppServer server;
  
    @BeforeEach
    public void setUp() {
      server = new NettyAppServer();
      server.start();
    }
  
    @Test
    @NotYetImplemented(SAFARI)
    @NotYetImplemented(IE)
    @NotYetImplemented(CHROME)
    @NotYetImplemented(EDGE)
    void canNavigateAndListenToErrors()
        throws ExecutionException, InterruptedException, TimeoutException {
      try (LogInspector logInspector = new LogInspector(driver)) {
        CompletableFuture<JavascriptLogEntry> future = new CompletableFuture<>();
        logInspector.onJavaScriptException(future::complete);
  
        BrowsingContext browsingContext = new BrowsingContext(driver, driver.getWindowHandle());
  
        page = server.whereIs("/bidi/logEntryAdded.html");
        NavigationResult info = browsingContext.navigate(page, ReadinessState.COMPLETE);
  
        assertThat(browsingContext.getId()).isNotEmpty();
        assertThat(info.getNavigationId()).isNull();
        assertThat(info.getUrl()).contains("/bidi/logEntryAdded.html");
  
        driver.findElement(By.id("jsException")).click();
  
        JavascriptLogEntry logEntry = future.get(5, TimeUnit.SECONDS);
  
        assertThat(logEntry.getText()).isEqualTo("Error: Not working");
        assertThat(logEntry.getType()).isEqualTo("javascript");
        assertThat(logEntry.getLevel()).isEqualTo(LogLevel.ERROR);
      }
    }
  
    @AfterEach
    public void quitDriver() {
      if (driver != null) {
        driver.quit();
      }
      safelyCall(server::stop);
    }
  }
  