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.browsingcontext;
  
  import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
  import static org.assertj.core.api.AssertionsForClassTypes.assertThatExceptionOfType;
  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.List;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.openqa.selenium.WindowType;
  import org.openqa.selenium.bidi.BiDiException;
  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 BrowsingContextTest extends JupiterTestBase {
  
    private AppServer server;
  
    @BeforeEach
    public void setUp() {
      server = new NettyAppServer();
      server.start();
    }
  
    @Test
    @NotYetImplemented(SAFARI)
    @NotYetImplemented(IE)
    void canCreateABrowsingContextForGivenId() {
      String id = driver.getWindowHandle();
      BrowsingContext browsingContext = new BrowsingContext(driver, id);
      assertThat(browsingContext.getId()).isEqualTo(id);
    }
  
    @Test
    @NotYetImplemented(SAFARI)
    @NotYetImplemented(IE)
    void canCreateAWindow() {
      BrowsingContext browsingContext = new BrowsingContext(driver, WindowType.WINDOW);
      assertThat(browsingContext.getId()).isNotEmpty();
    }
  
    @Test
    @NotYetImplemented(SAFARI)
    @NotYetImplemented(IE)
    @NotYetImplemented(CHROME)
    @NotYetImplemented(EDGE)
    void canCreateAWindowWithAReferenceContext() {
      BrowsingContext browsingContext =
          new BrowsingContext(driver, WindowType.WINDOW, driver.getWindowHandle());
      assertThat(browsingContext.getId()).isNotEmpty();
    }
  
    @Test
    @NotYetImplemented(SAFARI)
    @NotYetImplemented(IE)
    void canCreateATab() {
      BrowsingContext browsingContext = new BrowsingContext(driver, WindowType.TAB);
      assertThat(browsingContext.getId()).isNotEmpty();
    }
  
    @Test
    @NotYetImplemented(SAFARI)
    @NotYetImplemented(IE)
    @NotYetImplemented(CHROME)
    @NotYetImplemented(EDGE)
    void canCreateATabWithAReferenceContext() {
      BrowsingContext browsingContext =
          new BrowsingContext(driver, WindowType.TAB, driver.getWindowHandle());
      assertThat(browsingContext.getId()).isNotEmpty();
    }
  
    @Test
    @NotYetImplemented(SAFARI)
    @NotYetImplemented(IE)
    void canNavigateToAUrl() {
      BrowsingContext browsingContext = new BrowsingContext(driver, WindowType.TAB);
  
      String url = server.whereIs("/bidi/logEntryAdded.html");
      NavigationResult info = browsingContext.navigate(url);
  
      assertThat(browsingContext.getId()).isNotEmpty();
      assertThat(info.getUrl()).contains("/bidi/logEntryAdded.html");
    }
  
    @Test
    @NotYetImplemented(SAFARI)
    @NotYetImplemented(IE)
    void canNavigateToAUrlWithReadinessState() {
      BrowsingContext browsingContext = new BrowsingContext(driver, WindowType.TAB);
  
      String url = server.whereIs("/bidi/logEntryAdded.html");
      NavigationResult info = browsingContext.navigate(url, ReadinessState.COMPLETE);
  
      assertThat(browsingContext.getId()).isNotEmpty();
      assertThat(info.getUrl()).contains("/bidi/logEntryAdded.html");
    }
  
    @Test
    @NotYetImplemented(SAFARI)
    @NotYetImplemented(IE)
    @NotYetImplemented(CHROME)
    @NotYetImplemented(EDGE)
    void canGetTreeWithAChild() {
      String referenceContextId = driver.getWindowHandle();
      BrowsingContext parentWindow = new BrowsingContext(driver, referenceContextId);
  
      String url = server.whereIs("iframes.html");
  
      parentWindow.navigate(url, ReadinessState.COMPLETE);
  
      List<BrowsingContextInfo> contextInfoList = parentWindow.getTree();
  
      assertThat(contextInfoList.size()).isEqualTo(1);
      BrowsingContextInfo info = contextInfoList.get(0);
      assertThat(info.getChildren().size()).isEqualTo(1);
      assertThat(info.getId()).isEqualTo(referenceContextId);
      assertThat(info.getChildren().get(0).getUrl()).contains("formPage.html");
    }
  
    @Test
    @NotYetImplemented(SAFARI)
    @NotYetImplemented(IE)
    @NotYetImplemented(CHROME)
    @NotYetImplemented(EDGE)
    void canGetTreeWithDepth() {
      String referenceContextId = driver.getWindowHandle();
      BrowsingContext parentWindow = new BrowsingContext(driver, referenceContextId);
  
      String url = server.whereIs("iframes.html");
  
      parentWindow.navigate(url, ReadinessState.COMPLETE);
  
      List<BrowsingContextInfo> contextInfoList = parentWindow.getTree(0);
  
      assertThat(contextInfoList.size()).isEqualTo(1);
      BrowsingContextInfo info = contextInfoList.get(0);
      assertThat(info.getChildren()).isNull(); // since depth is 0
      assertThat(info.getId()).isEqualTo(referenceContextId);
    }
  
    @Test
    @NotYetImplemented(SAFARI)
    @NotYetImplemented(IE)
    void canGetAllTopLevelContexts() {
      BrowsingContext window1 = new BrowsingContext(driver, driver.getWindowHandle());
      BrowsingContext window2 = new BrowsingContext(driver, WindowType.WINDOW);
  
      List<BrowsingContextInfo> contextInfoList = window1.getTopLevelContexts();
  
      assertThat(contextInfoList.size()).isEqualTo(2);
    }
  
    @Test
    @NotYetImplemented(SAFARI)
    @NotYetImplemented(IE)
    void canCloseAWindow() {
      BrowsingContext window1 = new BrowsingContext(driver, WindowType.WINDOW);
      BrowsingContext window2 = new BrowsingContext(driver, WindowType.WINDOW);
  
      window2.close();
  
      assertThatExceptionOfType(BiDiException.class).isThrownBy(window2::getTree);
    }
  
    @Test
    @NotYetImplemented(SAFARI)
    @NotYetImplemented(IE)
    void canCloseATab() {
      BrowsingContext tab1 = new BrowsingContext(driver, WindowType.TAB);
      BrowsingContext tab2 = new BrowsingContext(driver, WindowType.TAB);
  
      tab2.close();
  
      assertThatExceptionOfType(BiDiException.class).isThrownBy(tab2::getTree);
    }
  
    // TODO: Add a test for closing the last tab once the behavior is finalized
    // Refer: https://github.com/w3c/webdriver-bidi/issues/187
  
    @AfterEach
    public void quitDriver() {
      if (driver != null) {
        driver.quit();
      }
      safelyCall(server::stop);
    }
  }
  