diff -r 000000000000 -r 6474c204b198 b2g/components/test/unit/test_bug793310.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/b2g/components/test/unit/test_bug793310.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,39 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function run_test() {
+  Components.utils.import("resource:///modules/TelURIParser.jsm")
+
+  // global-phone-number
+  do_check_eq(TelURIParser.parseURI('tel', 'tel:+1234'), '+1234');
+
+  // global-phone-number => white space separator
+  do_check_eq(TelURIParser.parseURI('tel', 'tel:+123 456 789'), '+123 456 789');
+
+  // global-phone-number => ignored chars
+  do_check_eq(TelURIParser.parseURI('tel', 'tel:+1234_123'), '+1234');
+
+  // global-phone-number => visualSeparator + digits
+  do_check_eq(TelURIParser.parseURI('tel', 'tel:+-.()1234567890'), '+-.()1234567890');
+
+  // local-phone-number
+  do_check_eq(TelURIParser.parseURI('tel', 'tel:1234'), '1234');
+
+  // local-phone-number => visualSeparator + digits + dtmfDigits + pauseCharacter
+  do_check_eq(TelURIParser.parseURI('tel', 'tel:-.()1234567890ABCDpw'), '-.()1234567890ABCDpw');
+
+  // local-phone-number => visualSeparator + digits + dtmfDigits + pauseCharacter + ignored chars
+  do_check_eq(TelURIParser.parseURI('tel', 'tel:-.()1234567890ABCDpw_'), '-.()1234567890ABCDpw');
+
+  // local-phone-number => isdn-subaddress
+  do_check_eq(TelURIParser.parseURI('tel', 'tel:123;isub=123'), '123');
+
+  // local-phone-number => post-dial
+  do_check_eq(TelURIParser.parseURI('tel', 'tel:123;postd=123'),  '123');
+
+  // local-phone-number => prefix
+  do_check_eq(TelURIParser.parseURI('tel', 'tel:123;phone-context=+0321'), '+0321123');
+
+  // local-phone-number => isdn-subaddress + post-dial + prefix
+  do_check_eq(TelURIParser.parseURI('tel', 'tel:123;isub=123;postd=123;phone-context=+0321'), '+0321123');
+}