diff -r 000000000000 -r 6474c204b198 services/common/tests/unit/test_utils_encodeBase32.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/services/common/tests/unit/test_utils_encodeBase32.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,51 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+Cu.import("resource://services-common/utils.js");
+
+function run_test() {
+  // Testing byte array manipulation.
+  do_check_eq("FOOBAR", CommonUtils.byteArrayToString([70, 79, 79, 66, 65, 82]));
+  do_check_eq("", CommonUtils.byteArrayToString([]));
+
+  _("Testing encoding...");
+  // Test vectors from RFC 4648
+  do_check_eq(CommonUtils.encodeBase32(""), "");
+  do_check_eq(CommonUtils.encodeBase32("f"), "MY======");
+  do_check_eq(CommonUtils.encodeBase32("fo"), "MZXQ====");
+  do_check_eq(CommonUtils.encodeBase32("foo"), "MZXW6===");
+  do_check_eq(CommonUtils.encodeBase32("foob"), "MZXW6YQ=");
+  do_check_eq(CommonUtils.encodeBase32("fooba"), "MZXW6YTB");
+  do_check_eq(CommonUtils.encodeBase32("foobar"), "MZXW6YTBOI======");
+
+  do_check_eq(CommonUtils.encodeBase32("Bacon is a vegetable."),
+              "IJQWG33OEBUXGIDBEB3GKZ3FORQWE3DFFY======");
+
+  _("Checking assumptions...");
+  for (let i = 0; i <= 255; ++i)
+    do_check_eq(undefined | i, i);
+
+  _("Testing decoding...");
+  do_check_eq(CommonUtils.decodeBase32(""), "");
+  do_check_eq(CommonUtils.decodeBase32("MY======"), "f");
+  do_check_eq(CommonUtils.decodeBase32("MZXQ===="), "fo");
+  do_check_eq(CommonUtils.decodeBase32("MZXW6YTB"), "fooba");
+  do_check_eq(CommonUtils.decodeBase32("MZXW6YTBOI======"), "foobar");
+
+  // Same with incorrect or missing padding.
+  do_check_eq(CommonUtils.decodeBase32("MZXW6YTBOI=="), "foobar");
+  do_check_eq(CommonUtils.decodeBase32("MZXW6YTBOI"), "foobar");
+
+  let encoded = CommonUtils.encodeBase32("Bacon is a vegetable.");
+  _("Encoded to " + JSON.stringify(encoded));
+  do_check_eq(CommonUtils.decodeBase32(encoded), "Bacon is a vegetable.");
+
+  // Test failure.
+  let err;
+  try {
+    CommonUtils.decodeBase32("000");
+  } catch (ex) {
+    err = ex;
+  }
+  do_check_eq(err, "Unknown character in base32: 0");
+}