1 files changed, 58 insertions, 0 deletions
diff --git a/services/crypto/tests/unit/test_crypto_random.js b/services/crypto/tests/unit/test_crypto_random.js
new file mode 100644
index 0000000000..46b4c7f82f
--- /dev/null
+++ b/services/crypto/tests/unit/test_crypto_random.js
@@ -0,0 +1,58 @@
+var WeaveCryptoModule = Cu.import("resource://services-crypto/WeaveCrypto.js");
+
+var cryptoSvc = new WeaveCrypto();
+
+function run_test() {
+  if (this.gczeal) {
+    _("Running crypto random tests with gczeal(2).");
+    gczeal(2);
+  }
+
+  // Test salt generation.
+  var salt;
+
+  salt = cryptoSvc.generateRandomBytes(0);
+  do_check_eq(salt.length, 0);
+  salt = cryptoSvc.generateRandomBytes(1);
+  do_check_eq(salt.length, 4);
+  salt = cryptoSvc.generateRandomBytes(2);
+  do_check_eq(salt.length, 4);
+  salt = cryptoSvc.generateRandomBytes(3);
+  do_check_eq(salt.length, 4);
+  salt = cryptoSvc.generateRandomBytes(4);
+  do_check_eq(salt.length, 8);
+  salt = cryptoSvc.generateRandomBytes(8);
+  do_check_eq(salt.length, 12);
+
+  // sanity check to make sure salts seem random
+  var salt2 = cryptoSvc.generateRandomBytes(8);
+  do_check_eq(salt2.length, 12);
+  do_check_neq(salt, salt2);
+
+  salt = cryptoSvc.generateRandomBytes(1024);
+  do_check_eq(salt.length, 1368);
+  salt = cryptoSvc.generateRandomBytes(16);
+  do_check_eq(salt.length, 24);
+
+
+  // Test random key generation
+  var keydata, keydata2, iv;
+
+  keydata  = cryptoSvc.generateRandomKey();
+  do_check_eq(keydata.length, 44);
+  keydata2 = cryptoSvc.generateRandomKey();
+  do_check_neq(keydata, keydata2); // sanity check for randomness
+  iv = cryptoSvc.generateRandomIV();
+  do_check_eq(iv.length, 24);
+
+  cryptoSvc.algorithm = WeaveCryptoModule.AES_256_CBC;
+  keydata  = cryptoSvc.generateRandomKey();
+  do_check_eq(keydata.length, 44);
+  keydata2 = cryptoSvc.generateRandomKey();
+  do_check_neq(keydata, keydata2); // sanity check for randomness
+  iv = cryptoSvc.generateRandomIV();
+  do_check_eq(iv.length, 24);
+
+  if (this.gczeal)
+    gczeal(0);
+}