1 files changed, 29 insertions, 0 deletions
diff --git a/dom/events/test/test_bug1539497.html b/dom/events/test/test_bug1539497.html
new file mode 100644
index 0000000000..4f49f1a044
--- /dev/null
+++ b/dom/events/test/test_bug1539497.html
@@ -0,0 +1,29 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <title>bug 1539497</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+  <script>
+    SimpleTest.waitForExplicitFinish();
+    function runTest() {
+      var win = window.open("about:blank");
+      win.onload = function() {
+        is(win.navigator.maxTouchPoints, 5, "Should have max touch points");
+        win.close();
+        SimpleTest.finish();
+      }
+    }
+    function init() {
+      SpecialPowers.pushPrefEnv(
+        {"set": [["dom.maxtouchpoints.testing.value", 5]]}, runTest);
+    }
+  </script>
+</head>
+<body onload="init()">
+<p id="display"></p>
+<div id="content" style="display: none"></div>
+<pre id="test"></pre>
+</body>
+</html>