[JS] Adding support for computedrole (#8990)

harsha509 · web-flow · commit 27fe2d9ba4c5 · 2021-01-03T22:39:32.000+02:00
diff --git a/javascript/node/selenium-webdriver/lib/command.js b/javascript/node/selenium-webdriver/lib/command.js
@@ -140,6 +140,7 @@ const Name = {
   EXECUTE_ASYNC_SCRIPT: 'executeAsyncScript',
 
   GET_ELEMENT_TEXT: 'getElementText',
+  GET_COMPUTED_ROLE: 'getAriaRole',
   GET_ELEMENT_TAG_NAME: 'getElementTagName',
   IS_ELEMENT_SELECTED: 'isElementSelected',
   IS_ELEMENT_ENABLED: 'isElementEnabled',
diff --git a/javascript/node/selenium-webdriver/lib/http.js b/javascript/node/selenium-webdriver/lib/http.js
@@ -234,6 +234,7 @@ const COMMAND_MAP = new Map([
   ],
   [cmd.Name.SUBMIT_ELEMENT, post('/session/:sessionId/element/:id/submit')],
   [cmd.Name.GET_ELEMENT_TEXT, get('/session/:sessionId/element/:id/text')],
+  [cmd.Name.GET_COMPUTED_ROLE, get('/session/:sessionId/element/:id/computedrole')],
   [cmd.Name.GET_ELEMENT_TAG_NAME, get('/session/:sessionId/element/:id/name')],
   [
     cmd.Name.IS_ELEMENT_SELECTED,
@@ -402,6 +403,7 @@ const W3C_COMMAND_MAP = new Map([
     post('/session/:sessionId/element/:id/value'),
   ],
   [cmd.Name.GET_ELEMENT_TEXT, get('/session/:sessionId/element/:id/text')],
+  [cmd.Name.GET_COMPUTED_ROLE, get('/session/:sessionId/element/:id/computedrole')],
   [cmd.Name.IS_ELEMENT_ENABLED, get('/session/:sessionId/element/:id/enabled')],
   [
     cmd.Name.GET_ELEMENT_ATTRIBUTE,
diff --git a/javascript/node/selenium-webdriver/lib/webdriver.js b/javascript/node/selenium-webdriver/lib/webdriver.js
@@ -2324,6 +2324,16 @@ class WebElement {
     return this.execute_(new command.Command(command.Name.GET_ELEMENT_TEXT))
   }
 
+  /**
+   * Get the computed WAI-ARIA role of element.
+   *
+   * @return {!Promise<string>} A promise that will be
+   *     resolved with the element's computed role.
+   */
+  getAriaRole() {
+    return this.execute_(new command.Command(command.Name.GET_COMPUTED_ROLE))
+  }
+
   /**
    * Returns an object describing an element's location, in pixels relative to
    * the document element, and the element's size in pixels.
diff --git a/javascript/node/selenium-webdriver/test/elementAriaRole_test.js b/javascript/node/selenium-webdriver/test/elementAriaRole_test.js
@@ -0,0 +1,59 @@
+/*
+ * 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.
+ */
+
+'use strict'
+
+const assert = require('assert')
+const test = require('../lib/test')
+const { By } = require('../index')
+
+test.suite(
+  function (env) {
+    let driver
+
+    before(async function () {
+      driver = await env.builder().build()
+    })
+    after(() => driver.quit())
+
+    describe('Testing Aria role', function () {
+      it('Should return explicitly defined role', async function () {
+        await driver.get(`data:text/html,<!DOCTYPE html>
+  <div role='heading' aria-level='1'>Level 1 Header</div>`)
+        let header = driver.findElement(By.css('div'))
+        assert.equal(await header.getAriaRole(), 'heading')
+      })
+
+      it('Should return implicit role defined by tagName', async function () {
+        await driver.get(`data:text/html,<!DOCTYPE html>
+  <h1> Level 1 Header</h1>`)
+        let header = driver.findElement(By.css('h1'))
+        assert.equal(await header.getAriaRole(), 'heading')
+      })
+
+      it('Should return explicit role even if it contradicts TagName', async function () {
+        await driver.get(`data:text/html,<!DOCTYPE html>
+  <h1 role='alert'>Level 1 Header</h1>`)
+        let header = driver.findElement(By.css('h1'))
+        assert.equal(await header.getAriaRole(), 'alert')
+      })
+    })
+  },
+  { browsers: ['chrome'] }
+)
