1 files changed, 164 insertions, 0 deletions
diff --git a/accessible/tests/browser/e10s/browser_caching_description.js b/accessible/tests/browser/e10s/browser_caching_description.js
new file mode 100644
index 000000000..18ee58bd0
--- /dev/null
+++ b/accessible/tests/browser/e10s/browser_caching_description.js
@@ -0,0 +1,164 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+'use strict';
+
+/* global EVENT_DESCRIPTION_CHANGE, EVENT_NAME_CHANGE, EVENT_REORDER */
+
+loadScripts({ name: 'name.js', dir: MOCHITESTS_DIR });
+
+/**
+ * Test data has the format of:
+ * {
+ *   desc      {String}   description for better logging
+ *   expected  {String}   expected description value for a given accessible
+ *   attrs     {?Array}   an optional list of attributes to update
+ *   waitFor   {?Array}   an optional list of accessible events to wait for when
+ *                        attributes are updated
+ * }
+ */
+const tests = [{
+  desc: 'No description when there are no @alt, @title and @aria-describedby',
+  expected: ''
+}, {
+  desc: 'Description from @aria-describedby attribute',
+  attrs: [{
+    attr: 'aria-describedby',
+    value: 'description'
+  }],
+  waitFor: [{ eventType: EVENT_DESCRIPTION_CHANGE, id: 'image' }],
+  expected: 'aria description'
+}, {
+  desc: 'No description from @aria-describedby since it is the same as the ' +
+        '@alt attribute which is used as the name',
+  attrs: [{
+    attr: 'alt',
+    value: 'aria description'
+  }],
+  waitFor: [{ eventType: EVENT_REORDER, id: 'body' }],
+  expected: ''
+}, {
+  desc: 'Description from @aria-describedby attribute when @alt and ' +
+        '@aria-describedby are not the same',
+  attrs: [{
+    attr: 'aria-describedby',
+    value: 'description2'
+  }],
+  waitFor: [{ eventType: EVENT_DESCRIPTION_CHANGE, id: 'image' }],
+  expected: 'another description'
+}, {
+  desc: 'Description from @aria-describedby attribute when @title (used for ' +
+        'name) and @aria-describedby are not the same',
+  attrs: [{
+    attr: 'alt'
+  }, {
+    attr: 'title',
+    value: 'title'
+  }],
+  waitFor: [{ eventType: EVENT_REORDER, id: 'body' }],
+  expected: 'another description'
+}, {
+  desc: 'No description from @aria-describedby since it is the same as the ' +
+        '@title attribute which is used as the name',
+  attrs: [{
+    attr: 'title',
+    value: 'another description'
+  }],
+  waitFor: [{ eventType: EVENT_NAME_CHANGE, id: 'image' }],
+  expected: ''
+}, {
+  desc: 'No description with only @title attribute which is used as the name',
+  attrs: [{
+    attr: 'aria-describedby'
+  }],
+  waitFor: [{ eventType: EVENT_DESCRIPTION_CHANGE, id: 'image' }],
+  expected: ''
+}, {
+  desc: 'Description from @title attribute when @alt and @atitle are not the ' +
+        'same',
+  attrs: [{
+    attr: 'alt',
+    value: 'aria description'
+  }],
+  waitFor: [{ eventType: EVENT_REORDER, id: 'body' }],
+  expected: 'another description'
+}, {
+  desc: 'No description from @title since it is the same as the @alt ' +
+        'attribute which is used as the name',
+  attrs: [{
+    attr: 'alt',
+    value: 'another description'
+  }],
+  waitFor: [{ eventType: EVENT_NAME_CHANGE, id: 'image' }],
+  expected: ''
+}, {
+  desc: 'No description from @aria-describedby since it is the same as the ' +
+        '@alt (used for name) and @title attributes',
+  attrs: [{
+    attr: 'aria-describedby',
+    value: 'description2'
+  }],
+  waitFor: [{ eventType: EVENT_DESCRIPTION_CHANGE, id: 'image' }],
+  expected: ''
+}, {
+  desc: 'Description from @aria-describedby attribute when it is different ' +
+        'from @alt (used for name) and @title attributes',
+  attrs: [{
+    attr: 'aria-describedby',
+    value: 'description'
+  }],
+  waitFor: [{ eventType: EVENT_DESCRIPTION_CHANGE, id: 'image' }],
+  expected: 'aria description'
+}, {
+  desc: 'No description from @aria-describedby since it is the same as the ' +
+        '@alt attribute (used for name) but different from title',
+  attrs: [{
+    attr: 'alt',
+    value: 'aria description'
+  }],
+  waitFor: [{ eventType: EVENT_NAME_CHANGE, id: 'image' }],
+  expected: ''
+}, {
+  desc: 'Description from @aria-describedby attribute when @alt (used for ' +
+        'name) and @aria-describedby are not the same but @title and ' +
+        'aria-describedby are',
+  attrs: [{
+    attr: 'aria-describedby',
+    value: 'description2'
+  }],
+  waitFor: [{ eventType: EVENT_DESCRIPTION_CHANGE, id: 'image' }],
+  expected: 'another description'
+}];
+
+/**
+ * Test caching of accessible object description
+ */
+addAccessibleTask(`
+  <p id="description">aria description</p>
+  <p id="description2">another description</p>
+  <img id="image" />`,
+  function*(browser, accDoc) {
+    let imgAcc = findAccessibleChildByID(accDoc, 'image');
+
+    for (let { desc, waitFor, attrs, expected } of tests) {
+      info(desc);
+      let onUpdate;
+      if (waitFor) {
+        onUpdate = waitForMultipleEvents(waitFor);
+      }
+      if (attrs) {
+        for (let { attr, value } of attrs) {
+          yield invokeSetAttribute(browser, 'image', attr, value);
+        }
+      }
+      yield onUpdate;
+      // When attribute change (alt) triggers reorder event, accessible will
+      // become defunct.
+      if (isDefunct(imgAcc)) {
+        imgAcc = findAccessibleChildByID(accDoc, 'image');
+      }
+      testDescr(imgAcc, expected);
+    }
+  }
+);