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;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.openqa.selenium.testing.drivers.Browser.HTMLUNIT;
  
  import java.util.List;
  import org.junit.jupiter.api.Test;
  import org.openqa.selenium.testing.JupiterTestBase;
  import org.openqa.selenium.testing.NotYetImplemented;
  
  class SelectElementHandlingTest extends JupiterTestBase {
  
    @Test
    void testShouldBePossibleToDeselectASingleOptionFromASelectWhichAllowsMultipleChoices() {
      driver.get(pages.formPage);
  
      WebElement multiSelect = driver.findElement(By.id("multi"));
      List<WebElement> options = multiSelect.findElements(By.tagName("option"));
  
      WebElement option = options.get(0);
      assertThat(option.isSelected()).isTrue();
      option.click();
      assertThat(option.isSelected()).isFalse();
      option.click();
      assertThat(option.isSelected()).isTrue();
  
      option = options.get(2);
      assertThat(option.isSelected()).isTrue();
    }
  
    @Test
    void testShouldBeAbleToChangeTheSelectedOptionInASelect() {
      driver.get(pages.formPage);
      WebElement selectBox = driver.findElement(By.xpath("//select[@name='selectomatic']"));
      List<WebElement> options = selectBox.findElements(By.tagName("option"));
      WebElement one = options.get(0);
      WebElement two = options.get(1);
      assertThat(one.isSelected()).isTrue();
      assertThat(two.isSelected()).isFalse();
  
      two.click();
      assertThat(one.isSelected()).isFalse();
      assertThat(two.isSelected()).isTrue();
    }
  
    @Test
    void testShouldBeAbleToSelectMoreThanOneOptionFromASelectWhichAllowsMultipleChoices() {
      driver.get(pages.formPage);
  
      WebElement multiSelect = driver.findElement(By.id("multi"));
      List<WebElement> options = multiSelect.findElements(By.tagName("option"));
      for (WebElement option : options) {
        if (!option.isSelected()) {
          option.click();
        }
      }
  
      for (int i = 0; i < options.size(); i++) {
        WebElement option = options.get(i);
        assertThat(option.isSelected()).as("Option at index %s", i).isTrue();
      }
    }
  
    @Test
    void testShouldSelectFirstOptionByDefaultIfNoneIsSelected() {
      driver.get(pages.formPage);
      WebElement selectBox = driver.findElement(By.xpath("//select[@name='select-default']"));
      List<WebElement> options = selectBox.findElements(By.tagName("option"));
      WebElement one = options.get(0);
      WebElement two = options.get(1);
      assertThat(one.isSelected()).isTrue();
      assertThat(two.isSelected()).isFalse();
  
      two.click();
      assertThat(one.isSelected()).isFalse();
      assertThat(two.isSelected()).isTrue();
    }
  
    @Test
    void testCanSelectElementsInOptGroups() {
      driver.get(pages.selectPage);
      WebElement element = driver.findElement(By.id("two-in-group"));
      element.click();
      assertThat(element.isSelected()).isTrue();
    }
  
    @Test
    void testCanGetValueFromOptionViaAttributeWhenAttributeDoesntExist() {
      driver.get(pages.formPage);
      WebElement element = driver.findElement(By.cssSelector("select[name='select-default'] option"));
      assertThat(element.getAttribute("value")).isEqualTo("One");
      element = driver.findElement(By.id("blankOption"));
      assertThat(element.getAttribute("value")).isEmpty();
    }
  
    @Test
    void testCanGetValueFromOptionViaAttributeWhenAttributeIsEmptyString() {
      driver.get(pages.formPage);
      WebElement element = driver.findElement(By.id("optionEmptyValueSet"));
      assertThat(element.getAttribute("value")).isEmpty();
    }
  
    @Test
    void testCanSelectFromMultipleSelectWhereValueIsBelowVisibleRange() {
      driver.get(pages.selectPage);
      WebElement option =
          driver.findElements(By.cssSelector("#selectWithMultipleLongList option")).get(4);
      option.click();
      assertThat(option.isSelected()).isTrue();
    }
  
    @Test
    void testCannotSetDisabledOption() {
      driver.get(pages.selectPage);
      WebElement element = driver.findElement(By.cssSelector("#visibility .disabled"));
      element.click();
      assertThat(element.isSelected()).isFalse();
    }
  
    @Test
    @NotYetImplemented(HTMLUNIT)
    public void testCanSetHiddenOption() {
      driver.get(pages.selectPage);
      WebElement element = driver.findElement(By.cssSelector("#visibility .hidden"));
      element.click();
      assertThat(element.isSelected()).isTrue();
    }
  
    @Test
    @NotYetImplemented(HTMLUNIT)
    public void testCanSetInvisibleOption() {
      driver.get(pages.selectPage);
      WebElement element = driver.findElement(By.cssSelector("#visibility .invisible"));
      element.click();
      assertThat(element.isSelected()).isTrue();
    }
  
    @Test
    void testCanHandleTransparentSelect() {
      driver.get(pages.selectPage);
      WebElement element = driver.findElement(By.cssSelector("#transparent option"));
      element.click();
      assertThat(element.isSelected()).isTrue();
    }
  }
  