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encryptor_unittest.cc

// Copyright (c) 2006-2008 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/password_manager/encryptor.h"

#include <string>

#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace {

TEST(EncryptorTest, String16EncryptionDecryption) {
  string16 plaintext;
  string16 result;
  std::string utf8_plaintext;
  std::string utf8_result;
  std::string ciphertext;

  // test borderline cases (empty strings)
  EXPECT_TRUE(Encryptor::EncryptString16(plaintext, &ciphertext));
  EXPECT_TRUE(Encryptor::DecryptString16(ciphertext, &result));
  EXPECT_EQ(plaintext, result);

  // test a simple string
  plaintext = ASCIIToUTF16("hello");
  EXPECT_TRUE(Encryptor::EncryptString16(plaintext, &ciphertext));
  EXPECT_TRUE(Encryptor::DecryptString16(ciphertext, &result));
  EXPECT_EQ(plaintext, result);

  // test unicode
  char16 wchars[] = { 0xdbeb, 0xdf1b, 0x4e03, 0x6708, 0x8849,
                      0x661f, 0x671f, 0x56db, 0x597c, 0x4e03,
                      0x6708, 0x56db, 0x6708, 0xe407, 0xdbaf,
                      0xdeb5, 0x4ec5, 0x544b, 0x661f, 0x671f,
                      0x65e5, 0x661f, 0x671f, 0x4e94, 0xd8b1,
                      0xdce1, 0x7052, 0x5095, 0x7c0b, 0xe586, 0};
  plaintext = wchars;
  utf8_plaintext = UTF16ToUTF8(plaintext);
  EXPECT_EQ(plaintext, UTF8ToUTF16(utf8_plaintext));
  EXPECT_TRUE(Encryptor::EncryptString16(plaintext, &ciphertext));
  EXPECT_TRUE(Encryptor::DecryptString16(ciphertext, &result));
  EXPECT_EQ(plaintext, result);
  EXPECT_TRUE(Encryptor::DecryptString(ciphertext, &utf8_result));
  EXPECT_EQ(utf8_plaintext, UTF16ToUTF8(result));

  EXPECT_TRUE(Encryptor::EncryptString(utf8_plaintext, &ciphertext));
  EXPECT_TRUE(Encryptor::DecryptString16(ciphertext, &result));
  EXPECT_EQ(plaintext, result);
  EXPECT_TRUE(Encryptor::DecryptString(ciphertext, &utf8_result));
  EXPECT_EQ(utf8_plaintext, UTF16ToUTF8(result));
}

TEST(EncryptorTest, EncryptionDecryption) {
  std::string plaintext;
  std::string result;
  std::string ciphertext;

  // test borderline cases (empty strings)
  EXPECT_TRUE(Encryptor::EncryptString(plaintext, &ciphertext));
  EXPECT_TRUE(Encryptor::DecryptString(ciphertext, &result));
  EXPECT_EQ(plaintext, result);

  // test a simple string
  plaintext = "hello";
  EXPECT_TRUE(Encryptor::EncryptString(plaintext, &ciphertext));
  EXPECT_TRUE(Encryptor::DecryptString(ciphertext, &result));
  EXPECT_EQ(plaintext, result);

  // Make sure it null terminates.
  plaintext.assign("hello", 3);
  EXPECT_TRUE(Encryptor::EncryptString(plaintext, &ciphertext));
  EXPECT_TRUE(Encryptor::DecryptString(ciphertext, &result));
  EXPECT_EQ(plaintext, "hel");
}

}  // namespace

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