1 files changed, 49 insertions, 0 deletions
diff --git a/accessible/tests/browser/bounds/browser_accessible_moved.js b/accessible/tests/browser/bounds/browser_accessible_moved.js
new file mode 100644
index 0000000000..307c680000
--- /dev/null
+++ b/accessible/tests/browser/bounds/browser_accessible_moved.js
@@ -0,0 +1,49 @@
+/* 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";
+
+function assertBoundsNonZero(acc) {
+  // XXX We don't use getBounds because it uses BoundsInCSSPixels(), but that
+  // isn't implemented for the cache yet.
+  let x = {};
+  let y = {};
+  let width = {};
+  let height = {};
+  acc.getBounds(x, y, width, height);
+  ok(x.value > 0, "x is non-0");
+  ok(y.value > 0, "y is non-0");
+  ok(width.value > 0, "width is non-0");
+  ok(height.value > 0, "height is non-0");
+}
+
+/**
+ * Test that bounds aren't 0 after an Accessible is moved (but not re-created).
+ */
+addAccessibleTask(
+  `
+<div id="root" role="group"><div id="scrollable" role="presentation" style="height: 1px;"><button id="button">test</button></div></div>
+  `,
+  async function (browser, docAcc) {
+    let button = findAccessibleChildByID(docAcc, "button");
+    assertBoundsNonZero(button);
+
+    const root = findAccessibleChildByID(docAcc, "root");
+    let reordered = waitForEvent(EVENT_REORDER, root);
+    // scrollable wasn't in the a11y tree, but this will force it to be created.
+    // button will be moved inside it.
+    await invokeContentTask(browser, [], () => {
+      content.document.getElementById("scrollable").style.overflow = "scroll";
+    });
+    await reordered;
+
+    const scrollable = findAccessibleChildByID(docAcc, "scrollable");
+    assertBoundsNonZero(scrollable);
+    // XXX button's RemoteAccessible was recreated, so we have to fetch it
+    // again. This shouldn't be necessary once bug 1739050 is fixed.
+    button = findAccessibleChildByID(docAcc, "button");
+    assertBoundsNonZero(button);
+  },
+  { topLevel: true, iframe: true, remoteIframe: true }
+);