1 files changed, 65 insertions, 0 deletions
diff --git a/dom/tests/mochitest/localstorage/test_localStorageEnablePref.html b/dom/tests/mochitest/localstorage/test_localStorageEnablePref.html
new file mode 100644
index 0000000000..485f4e010a
--- /dev/null
+++ b/dom/tests/mochitest/localstorage/test_localStorageEnablePref.html
@@ -0,0 +1,65 @@
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>localStorage enable preference test</title>
+
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+<script type="text/javascript">
+
+SimpleTest.requestCompleteLog();
+
+function checkException(func, exc)
+{
+  var exceptionThrew = false;
+  try {
+    func();
+  }
+  catch (ex) {
+    exceptionThrew = true;
+    is(ex.name, exc, "Expected "+exc+" exception");
+    if (ex.name != exc) {
+      info("The exception which was thrown is: " + ex);
+    }
+  }
+  ok(exceptionThrew, "Exception "+exc+" threw");
+}
+
+var storage;
+function test1() {
+  is(typeof(window.localStorage), "object", "Storage is present");
+  storage = window.localStorage;
+
+  SpecialPowers.pushPrefEnv({"set": [["dom.storage.enabled", false]]}, test2);
+}
+
+function test2() {
+  is(window.localStorage, null, "Storage is null");
+
+  checkException(function() {storage.setItem("test", "value");}, "SecurityError");
+
+  SpecialPowers.pushPrefEnv({"set": [["dom.storage.enabled", true]]}, test3);
+}
+
+function test3() {
+  is(typeof(window.localStorage), "object", "Storage is present again");
+  storage.setItem("test", "value");
+  is(storage.getItem("test"), "value", "value can be set");
+  window.localStorage.clear();
+  SimpleTest.finish();
+}
+
+function doTest() {
+  SpecialPowers.pushPrefEnv({"set": [["dom.storage.enabled", true]]}, test1);
+}
+
+SimpleTest.waitForExplicitFinish();
+
+</script>
+
+</head>
+
+<body onload="doTest();">
+
+</body>
+</html>