1 files changed, 15 insertions, 0 deletions
diff --git a/comm/calendar/test/unit/test_bug272411.js b/comm/calendar/test/unit/test_bug272411.js
new file mode 100644
index 0000000000..c871b53cf0
--- /dev/null
+++ b/comm/calendar/test/unit/test_bug272411.js
@@ -0,0 +1,15 @@
+/* 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/. */
+
+function run_test() {
+  let jsd = new Date();
+  let cdt = cal.dtz.jsDateToDateTime(jsd);
+
+  let cdtTime = cal.dtz.dateTimeToJsDate(cdt).getTime() / 1000;
+  let jsdTime = Math.floor(jsd.getTime() / 1000);
+
+  // calIDateTime is only accurate to the second, milliseconds need to be
+  // stripped.
+  equal(cdtTime, jsdTime);
+}