1 files changed, 85 insertions, 0 deletions
diff --git a/dom/events/test/window_bug659071.html b/dom/events/test/window_bug659071.html
new file mode 100644
index 0000000000..7f0c8b676c
--- /dev/null
+++ b/dom/events/test/window_bug659071.html
@@ -0,0 +1,85 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test for Bug 659071</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="/tests/SimpleTest/EventUtils.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<video id="v" controls></video>
+<script type="application/javascript">
+
+SimpleTest.waitForFocus(runTests, window);
+
+function ok() {
+  window.opener.ok.apply(window.opener, arguments);
+}
+
+function info() {
+  window.opener.info.apply(window.opener, arguments);
+}
+
+async function waitForCondition(aFunc) {
+  for (let i = 0; i < 30; i++) {
+    await (new Promise(resolve => requestAnimationFrame(() => requestAnimationFrame(resolve))));
+    if (aFunc(SpecialPowers.getFullZoom(window))) {
+      return true;
+    }
+  }
+  return false;
+}
+
+async function runTests() {
+  await SpecialPowers.pushPrefEnv(
+    {
+      "set": [
+        ["mousewheel.with_control.action", 3],
+        ["test.events.async.enabled", true],
+      ]
+    }
+  );
+
+  const video = document.getElementById("v");
+
+  for (let i = 0; i < 3; i++) {
+    synthesizeWheel(video, 10, 10,
+      { deltaMode: WheelEvent.DOM_DELTA_LINE, ctrlKey: true,
+        deltaX: 0, deltaY: 1.0, lineOrPageDeltaX: 0, lineOrPageDeltaY: 1 });
+    if (await waitForCondition(aZoomLevel => aZoomLevel < 1.0)) {
+      break;
+    }
+    info("Retrying zoom out...");
+  }
+  let zoomLevel = SpecialPowers.getFullZoom(window);
+  ok(
+    zoomLevel < 1.0,
+    `Failed to zoom out with turning wheel to bottom, got: ${zoomLevel}`
+  );
+
+  for (let i = 0; i < 4; i++) {
+    synthesizeWheel(video, 10, 10,
+      { deltaMode: WheelEvent.DOM_DELTA_LINE, ctrlKey: true,
+        deltaX: 0, deltaY: -1.0, lineOrPageDeltaX: 0, lineOrPageDeltaY: -1 });
+    if (await waitForCondition(aZoomLevel => aZoomLevel > 1.0)) {
+      break;
+    }
+    info("Retrying zoom in...");
+  }
+  zoomLevel = SpecialPowers.getFullZoom(window);
+  ok(
+    zoomLevel > 1.0,
+    `Failed to zoom in with turning wheel to top, got: ${zoomLevel}`
+  );
+
+  synthesizeKey("0", { accelKey: true });
+  ok(
+    await waitForCondition(aZoomLevel => aZoomLevel == 1.0),
+    "Failed to reset zoom at finish the test"
+  );
+  opener.finish();
+}
+
+</script>
+</body>
+</html>