1 files changed, 55 insertions, 0 deletions
diff --git a/services/common/tests/unit/test_utils_encodeBase32.js b/services/common/tests/unit/test_utils_encodeBase32.js
new file mode 100644
index 0000000000..3299ac8d05
--- /dev/null
+++ b/services/common/tests/unit/test_utils_encodeBase32.js
@@ -0,0 +1,55 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function run_test() {
+  // Testing byte array manipulation.
+  Assert.equal(
+    "FOOBAR",
+    CommonUtils.byteArrayToString([70, 79, 79, 66, 65, 82])
+  );
+  Assert.equal("", CommonUtils.byteArrayToString([]));
+
+  _("Testing encoding...");
+  // Test vectors from RFC 4648
+  Assert.equal(CommonUtils.encodeBase32(""), "");
+  Assert.equal(CommonUtils.encodeBase32("f"), "MY======");
+  Assert.equal(CommonUtils.encodeBase32("fo"), "MZXQ====");
+  Assert.equal(CommonUtils.encodeBase32("foo"), "MZXW6===");
+  Assert.equal(CommonUtils.encodeBase32("foob"), "MZXW6YQ=");
+  Assert.equal(CommonUtils.encodeBase32("fooba"), "MZXW6YTB");
+  Assert.equal(CommonUtils.encodeBase32("foobar"), "MZXW6YTBOI======");
+
+  Assert.equal(
+    CommonUtils.encodeBase32("Bacon is a vegetable."),
+    "IJQWG33OEBUXGIDBEB3GKZ3FORQWE3DFFY======"
+  );
+
+  _("Checking assumptions...");
+  for (let i = 0; i <= 255; ++i) {
+    Assert.equal(undefined | i, i);
+  }
+
+  _("Testing decoding...");
+  Assert.equal(CommonUtils.decodeBase32(""), "");
+  Assert.equal(CommonUtils.decodeBase32("MY======"), "f");
+  Assert.equal(CommonUtils.decodeBase32("MZXQ===="), "fo");
+  Assert.equal(CommonUtils.decodeBase32("MZXW6YTB"), "fooba");
+  Assert.equal(CommonUtils.decodeBase32("MZXW6YTBOI======"), "foobar");
+
+  // Same with incorrect or missing padding.
+  Assert.equal(CommonUtils.decodeBase32("MZXW6YTBOI=="), "foobar");
+  Assert.equal(CommonUtils.decodeBase32("MZXW6YTBOI"), "foobar");
+
+  let encoded = CommonUtils.encodeBase32("Bacon is a vegetable.");
+  _("Encoded to " + JSON.stringify(encoded));
+  Assert.equal(CommonUtils.decodeBase32(encoded), "Bacon is a vegetable.");
+
+  // Test failure.
+  let err;
+  try {
+    CommonUtils.decodeBase32("000");
+  } catch (ex) {
+    err = ex;
+  }
+  Assert.equal(err.message, "Unknown character in base32: 0");
+}