1 files changed, 32 insertions, 0 deletions
diff --git a/accessible/tests/browser/bounds/browser_position.js b/accessible/tests/browser/bounds/browser_position.js
new file mode 100644
index 0000000000..616db89a73
--- /dev/null
+++ b/accessible/tests/browser/bounds/browser_position.js
@@ -0,0 +1,32 @@
+/* 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 changing the left/top CSS properties.
+ */
+addAccessibleTask(
+  `
+<div id="div" style="position: relative; left: 0px; top: 0px; width: fit-content;">
+  test
+</div>
+  `,
+  async function(browser, docAcc) {
+    await testBoundsWithContent(docAcc, "div", browser);
+    info("Changing left");
+    await invokeContentTask(browser, [], () => {
+      content.document.getElementById("div").style.left = "200px";
+    });
+    await waitForContentPaint(browser);
+    await testBoundsWithContent(docAcc, "div", browser);
+    info("Changing top");
+    await invokeContentTask(browser, [], () => {
+      content.document.getElementById("div").style.top = "200px";
+    });
+    await waitForContentPaint(browser);
+    await testBoundsWithContent(docAcc, "div", browser);
+  },
+  { chrome: true, topLevel: true, iframe: true }
+);