1 files changed, 75 insertions, 0 deletions
diff --git a/accessible/tests/browser/mac/browser_hierarchy.js b/accessible/tests/browser/mac/browser_hierarchy.js
new file mode 100644
index 0000000000..8a97e55c07
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_hierarchy.js
@@ -0,0 +1,75 @@
+/* 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";
+
+/**
+ * Test AXIndexForChildUIElement
+ */
+addAccessibleTask(
+  `<p id="p">Hello <a href="#" id="link">strange</a> world`,
+  (browser, accDoc) => {
+    let p = getNativeInterface(accDoc, "p");
+
+    let children = p.getAttributeValue("AXChildren");
+    is(children.length, 3, "p has 3 children");
+    is(
+      children[1].getAttributeValue("AXDOMIdentifier"),
+      "link",
+      "second child is link"
+    );
+
+    let index = p.getParameterizedAttributeValue(
+      "AXIndexForChildUIElement",
+      children[1]
+    );
+    is(index, 1, "link is second child");
+  }
+);
+
+/**
+ * Test textbox with more than one child
+ */
+addAccessibleTask(
+  `<div id="textbox" role="textbox">Hello <a href="#">strange</a> world</div>`,
+  (browser, accDoc) => {
+    let textbox = getNativeInterface(accDoc, "textbox");
+
+    is(
+      textbox.getAttributeValue("AXChildren").length,
+      3,
+      "textbox has 3 children"
+    );
+  }
+);
+
+/**
+ * Test textbox with one child
+ */
+addAccessibleTask(
+  `<div id="textbox" role="textbox">Hello </div>`,
+  async (browser, accDoc) => {
+    let textbox = getNativeInterface(accDoc, "textbox");
+
+    is(
+      textbox.getAttributeValue("AXChildren").length,
+      0,
+      "textbox with one child is pruned"
+    );
+
+    let reorder = waitForEvent(EVENT_REORDER, "textbox");
+    await SpecialPowers.spawn(browser, [], () => {
+      let link = content.document.createElement("a");
+      link.textContent = "World";
+      content.document.getElementById("textbox").appendChild(link);
+    });
+    await reorder;
+
+    is(
+      textbox.getAttributeValue("AXChildren").length,
+      2,
+      "textbox with two child is not pruned"
+    );
+  }
+);