Add unit tests for Nigori permute and decrypt.

chrome/browser/sync/util/nigori_unittest.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/sync/util/nigori.h"
 
 #include <string>
 
 #include "base/scoped_ptr.h"
 #include "base/string_util.h"
@@ skipping 79 matching lines @@
 
   // Corrput the ciphertext by changing one of its bytes.
   encrypted[browser_sync::Nigori::kIvSize + 10] =
       (encrypted[browser_sync::Nigori::kIvSize + 10] == 'a' ? 'b' : 'a');
 
   std::string decrypted;
   EXPECT_FALSE(nigori.Decrypt(encrypted, &decrypted));
 
   EXPECT_NE(plaintext, decrypted);
 }
+
+TEST(NigoriTest, Permute) {
+  browser_sync::Nigori nigori("example.com");
+  EXPECT_TRUE(nigori.Init("username", "password"));
+
+  std::string permuted;
+  EXPECT_TRUE(nigori.Permute(browser_sync::Nigori::Password, "test name",
+                             &permuted));
+
+  std::string expected =
+      "prewwdJj2PrGDczvmsHJEE5ndcCyVze8sY9kD5hjY/Tm"
+      "c5kOjXFK7zB3Ss4LlHjEDirMu+vh85JwHOnGrMVe+g==";
+  EXPECT_EQ(expected, permuted);
+}
+
+TEST(NigoriTest, Decrypt) {
+  browser_sync::Nigori nigori("example.com");
+  EXPECT_TRUE(nigori.Init("username", "password"));
+
+  std::string encrypted =
+      "e7+JyS6ibj6F5qqvpseukNRTZ+oBpu5iuv2VYjOfrH1dNiFLNf7Ov0"
+      "kx/zicKFn0lJcbG1UmkNWqIuR4x+quDNVuLaZGbrJPhrJuj7cokCM=";
+
+  std::string plaintext;
+  EXPECT_TRUE(nigori.Decrypt(encrypted, &plaintext));
+
+  std::string expected("test, test, 1, 2, 3");
+  EXPECT_EQ(expected, plaintext);
+}