Signed settings refactoring: Proper caching and more tests.

chrome/browser/chromeos/login/signed_settings_cache_unittest.cc

+// Copyright (c) 2011 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/signed_settings_cache.h"
+
+#include "chrome/browser/policy/proto/chrome_device_policy.pb.h"
+#include "chrome/browser/policy/proto/device_management_backend.pb.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/test/base/testing_pref_service.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace em = enterprise_management;
+
+namespace chromeos {
+
+class SignedSettingsCacheTest : public testing::Test {
+ protected:
+  virtual void SetUp() {
+    // prepare some data.
+    policy_.set_policy_type("google/chromeos/device");
+    em::ChromeDeviceSettingsProto pol;
+    pol.mutable_allow_new_users()->set_allow_new_users(false);
+    policy_.set_policy_value(pol.SerializeAsString());
+
+    signed_settings_cache::RegisterPrefs(&local_state_);
+  }
+
+  TestingPrefService local_state_;
+  em::PolicyData policy_;
+};
+
+TEST_F(SignedSettingsCacheTest, Basic) {
+  EXPECT_TRUE(signed_settings_cache::Store(policy_, &local_state_));
+
+  em::PolicyData policy_out;
+  EXPECT_TRUE(signed_settings_cache::Retrieve(&policy_out, &local_state_));
+
+  EXPECT_TRUE(policy_out.has_policy_type());
+  EXPECT_TRUE(policy_out.has_policy_value());
+
+  em::ChromeDeviceSettingsProto pol;
+  pol.ParseFromString(policy_out.policy_value());
+  EXPECT_TRUE(pol.has_allow_new_users());
+  EXPECT_FALSE(pol.allow_new_users().allow_new_users());
+}
+
+TEST_F(SignedSettingsCacheTest, CorruptData) {
+  EXPECT_TRUE(signed_settings_cache::Store(policy_, &local_state_));
+
+  local_state_.SetString(prefs::kSignedSettingsCache, "blaaa");
+
+  em::PolicyData policy_out;
+  EXPECT_FALSE(signed_settings_cache::Retrieve(&policy_out, &local_state_));
+}
+
+}  // namespace chromeos