Add DeviceSettingsService.

chrome/browser/chromeos/login/owner_key_util_unittest.cc

+// Copyright (c) 2012 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/chromeos/login/owner_key_util.h"
+
+#include <string>
+#include <vector>
+
+#include "base/file_path.h"
+#include "base/file_util.h"
+#include "base/memory/ref_counted.h"
+#include "base/scoped_temp_dir.h"
+#include "crypto/nss_util.h"
+#include "crypto/nss_util_internal.h"
+#include "crypto/rsa_private_key.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace chromeos {
+
+class OwnerKeyUtilTest : public ::testing::Test {
+ public:
+  OwnerKeyUtilTest() {}
+  virtual ~OwnerKeyUtilTest() {}
+
+  virtual void SetUp() {
+    crypto::OpenPersistentNSSDB();
+
+    ASSERT_TRUE(tmpdir_.CreateUniqueTempDir());
+    key_file_ = tmpdir_.path().Append("key");
+    util_ = new OwnerKeyUtilImpl(key_file_);
+  }
+
+  // Key generation parameters.
+  static const uint16 kKeySizeInBits;
+
+  ScopedTempDir tmpdir_;
+  FilePath key_file_;
+  scoped_refptr<OwnerKeyUtil> util_;
+};
+
+// We're generating and using 2048-bit RSA keys.
+// static
+const uint16 OwnerKeyUtilTest::kKeySizeInBits = 2048;
+
+TEST_F(OwnerKeyUtilTest, ExportImportPublicKey) {
+  scoped_ptr<crypto::RSAPrivateKey> pair(
+      crypto::RSAPrivateKey::CreateSensitive(kKeySizeInBits));

[pastarmovj, 2012/07/30 12:19:19]

Just a thought here: generating a new key every time will add some time to the
unit tests isn't it wiser to generate one and hard code it as a blob in the
source code of this test to save a few milliseconds on the unit tests?

[Mattias Nissler (ping if slow), 2012/07/31 13:02:15]

This is copied from OwnerKeyUtilsTest and has been just fine thus far :) I
reworked the OwnerKeyUtil stuff a bit more and this uses static data now.

+  ASSERT_NE(pair.get(), reinterpret_cast<crypto::RSAPrivateKey*>(NULL));
+
+  // Export public key to file.
+  ASSERT_TRUE(util_->ExportPublicKey(pair.get()));
+
+  // Export public key, so that we can compare it to the one we get off disk.
+  std::vector<uint8> public_key;
+  ASSERT_TRUE(pair->ExportPublicKey(&public_key));
+  std::vector<uint8> from_disk;
+  ASSERT_TRUE(util_->ImportPublicKey(&from_disk));
+
+  std::vector<uint8>::iterator pubkey_it;
+  std::vector<uint8>::iterator disk_it;
+  for (pubkey_it = public_key.begin(), disk_it = from_disk.begin();
+       pubkey_it < public_key.end();
+       pubkey_it++, disk_it++) {
+    EXPECT_EQ(*pubkey_it, *disk_it);
+  }

[pastarmovj, 2012/07/30 12:19:19]

==size + memcmp?

[Mattias Nissler (ping if slow), 2012/07/31 13:02:15]

Actually, using EXPECT_EQ on the vectors is even better.

[pastarmovj, 2012/08/01 08:46:52]

Agreed :)

+}
+
+TEST_F(OwnerKeyUtilTest, ImportPublicKeyFailed) {
+  // First test the case where the file is missing which should fail.
+  std::vector<uint8> from_disk;
+  ASSERT_FALSE(util_->ImportPublicKey(&from_disk));
+
+  // Next try empty file. This should fail and the array should be empty.
+  from_disk.resize(10);
+  ASSERT_EQ(0, file_util::WriteFile(key_file_, "", 0));
+  ASSERT_FALSE(util_->ImportPublicKey(&from_disk));
+  ASSERT_FALSE(from_disk.size());
+}
+
+}  // namespace chromeos