1 files changed, 61 insertions, 0 deletions
diff --git a/dom/base/test/fullscreen/file_fullscreen-lenient-setters.html b/dom/base/test/fullscreen/file_fullscreen-lenient-setters.html
new file mode 100644
index 0000000000..02491c177e
--- /dev/null
+++ b/dom/base/test/fullscreen/file_fullscreen-lenient-setters.html
@@ -0,0 +1,61 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <title>Test for Bug 1268798</title>
+  <script src="/tests/SimpleTest/EventUtils.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+</head>
+<body>
+<script>
+"use strict";
+
+function ok(condition, msg) {
+  opener.ok(condition, "[lenient-setters] " + msg);
+}
+
+function is(a, b, msg) {
+  opener.is(a, b, "[lenient-setters] " + msg);
+}
+
+function info(msg) {
+  opener.info("[lenient-setters] " + msg);
+}
+
+let unattachedDiv = document.createElement("div");
+
+function begin() {
+  var originalValue = document.fullscreen;
+  try {
+    document.fullscreen = !document.fullscreen;
+    is(document.fullscreen, originalValue,
+       "fullscreen should not be changed");
+  } catch (e) {
+    ok(false, "Setting fullscreen should not throw");
+  }
+
+  var originalElem = document.fullscreenElement;
+  try {
+    document.fullscreenElement = unattachedDiv;
+    document.fullscreenElement = [];
+    is(document.fullscreenElement, originalElem,
+       "fullscreenElement should not be changed");
+  } catch (e) {
+    ok(false, "Setting fullscreenElement should not throw");
+  }
+
+  var originalEnabled = document.fullscreenEnabled;
+  try {
+    document.fullscreenEnabled = !originalEnabled;
+    is(document.fullscreenEnabled, originalEnabled,
+       "fullscreenEnabled should not be changed");
+  } catch (e) {
+    ok(false, "Setting fullscreenEnabled should not throw");
+  }
+
+  opener.nextTest();
+}
+
+</script>
+</body>
+</html>