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.firefox;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.junit.jupiter.api.Assertions.fail;
  
  import java.io.File;
  import java.net.MalformedURLException;
  import java.nio.file.Path;
  import org.junit.jupiter.api.Test;
  import org.openqa.selenium.JavascriptExecutor;
  import org.openqa.selenium.OutputType;
  import org.openqa.selenium.WebDriverException;
  import org.openqa.selenium.build.InProject;
  import org.openqa.selenium.testing.JupiterTestBase;
  import org.openqa.selenium.testing.NoDriverAfterTest;
  import org.openqa.selenium.testing.NoDriverBeforeTest;
  import org.openqa.selenium.testing.drivers.WebDriverBuilder;
  
  class RemoteFirefoxDriverTest extends JupiterTestBase {
  
    @Test
    @NoDriverAfterTest
    public void shouldAllowRemoteWebDriverBuilderToUseHasExtensions() {
      Path extension = InProject.locate("common/extensions/webextensions-selenium-example.xpi");
      String id = ((HasExtensions) driver).installExtension(extension);
      assertThat(id).isEqualTo("webextensions-selenium-example@example.com");
  
      try {
        ((HasExtensions) driver).uninstallExtension(id);
      } catch (WebDriverException ex) {
        fail(ex.getMessage());
      }
    }
  
    @Test
    void shouldTakeFullPageScreenshot() {
      File tempFile = ((HasFullPageScreenshot) driver).getFullPageScreenshotAs(OutputType.FILE);
      assertThat(tempFile.exists()).isTrue();
      assertThat(tempFile).isNotEmpty();
    }
  
    @Test
    @NoDriverBeforeTest
    public void shouldAllowRemoteWebDriverBuilderToUseHasContext() throws MalformedURLException {
      FirefoxOptions options = new FirefoxOptions();
      String dir = "foo/bar";
      options.addPreference("browser.download.dir", dir);
      localDriver = new WebDriverBuilder().get(options);
  
      ((HasContext) localDriver).setContext(FirefoxCommandContext.CHROME);
      String result =
          (String)
              ((JavascriptExecutor) localDriver)
                  .executeScript("return Services.prefs.getStringPref('browser.download.dir')");
      assertThat(result).isEqualTo(dir);
    }
  
    @Test
    @NoDriverBeforeTest
    public void shouldSetContext() {
      FirefoxOptions options = new FirefoxOptions();
      String dir = "foo/bar";
      options.addPreference("browser.download.dir", dir);
  
      localDriver = new WebDriverBuilder().get(options);
  
      HasContext context = (HasContext) localDriver;
      context.setContext(FirefoxCommandContext.CHROME);
  
      String result =
          (String)
              ((JavascriptExecutor) localDriver)
                  .executeScript("return Services.prefs.getStringPref('browser.download.dir')");
  
      assertThat(result).isEqualTo(dir);
    }
  }
  