Add DeviceDisablingManager to manage device disabling

chrome/browser/chromeos/system/device_disabling_manager_unittest.cc

+// Copyright 2014 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/system/device_disabling_manager.h"
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/command_line.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/prefs/scoped_user_pref_update.h"
+#include "base/prefs/testing_pref_service.h"
+#include "base/run_loop.h"
+#include "chrome/browser/browser_process_platform_part.h"
+#include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
+#include "chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h"
+#include "chrome/browser/chromeos/policy/server_backed_device_state.h"
+#include "chrome/browser/chromeos/policy/stub_enterprise_install_attributes.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/test/base/testing_browser_process.h"
+#include "chromeos/chromeos_switches.h"
+#include "components/policy/core/common/cloud/cloud_policy_constants.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace chromeos {
+namespace system {
+
+namespace {
+
+const char kDisabledMessage[] = "Device disabled.";
+
+}
+
+class DeviceDisablingManagerTest : public testing::Test {
+ public:
+  DeviceDisablingManagerTest();
+  ~DeviceDisablingManagerTest();
+
+  // testing::Test:
+  void SetUp() override;
+  void TearDown() override;
+
+  bool IsDeviceDisabled() const;
+  const std::string& GetDisabledMessage() const;
+
+  void CheckWhetherDeviceDisabledDuringOOBE();
+
+  void SetDeviceDisabled(bool disabled);
+  void SetDeviceMode(policy::DeviceMode device_mode);
+
+ private:
+  void OnDeviceDisabledChecked(bool device_disabled);
+
+  policy::ScopedStubEnterpriseInstallAttributes install_attributes_;
+  TestingPrefServiceSimple local_state_;
+
+  scoped_ptr<DeviceDisablingManager> device_disabling_manager_;
+
+  base::RunLoop run_loop_;
+  bool device_disabled_;
+
+  DISALLOW_COPY_AND_ASSIGN(DeviceDisablingManagerTest);
+};
+
+DeviceDisablingManagerTest::DeviceDisablingManagerTest()
+    : install_attributes_("", "", "", policy::DEVICE_MODE_NOT_SET),
+      device_disabled_(false) {
+}
+
+DeviceDisablingManagerTest::~DeviceDisablingManagerTest() {
+}
+
+void DeviceDisablingManagerTest::SetUp() {
+  TestingBrowserProcess::GetGlobal()->SetLocalState(&local_state_);
+  policy::DeviceCloudPolicyManagerChromeOS::RegisterPrefs(
+      local_state_.registry());
+
+  device_disabling_manager_.reset(new DeviceDisablingManager(
+      TestingBrowserProcess::GetGlobal()->platform_part()->
+          browser_policy_connector_chromeos()));
+}
+
+void DeviceDisablingManagerTest::TearDown() {
+  TestingBrowserProcess::GetGlobal()->SetLocalState(nullptr);
+}
+
+bool DeviceDisablingManagerTest::IsDeviceDisabled() const {
+  return device_disabled_;
+}
+
+const std::string& DeviceDisablingManagerTest::GetDisabledMessage() const {
+  return device_disabling_manager_->GetDisabledMessage();
+
+}
+
+void DeviceDisablingManagerTest::CheckWhetherDeviceDisabledDuringOOBE() {
+  device_disabling_manager_->CheckWhetherDeviceDisabledDuringOOBE(
+      base::Bind(&DeviceDisablingManagerTest::OnDeviceDisabledChecked,
+                 base::Unretained(this)));
+  run_loop_.Run();
+}
+
+void DeviceDisablingManagerTest::SetDeviceDisabled(bool disabled) {
+  DictionaryPrefUpdate dict(&local_state_, prefs::kServerBackedDeviceState);
+  if (disabled) {
+    dict->SetString(policy::kDeviceStateRestoreMode,
+                    policy::kDeviceStateRestoreModeDisabled);
+  } else {
+    dict->Remove(policy::kDeviceStateRestoreMode, nullptr);
+  }
+  dict->SetString(policy::kDeviceStateDisabledMessage, kDisabledMessage);
+}
+
+void DeviceDisablingManagerTest::SetDeviceMode(policy::DeviceMode device_mode) {
+  reinterpret_cast<policy::StubEnterpriseInstallAttributes*>(
+      TestingBrowserProcess::GetGlobal()->platform_part()->
+          browser_policy_connector_chromeos()->GetInstallAttributes())->
+              SetMode(device_mode);
+}
+
+void DeviceDisablingManagerTest::OnDeviceDisabledChecked(bool device_disabled) {
+  device_disabled_ = device_disabled;
+  run_loop_.Quit();
+}
+
+// Verifies that the device is not considered disabled during OOBE by default.
+TEST_F(DeviceDisablingManagerTest, NotDisabledByDefault) {
+  CheckWhetherDeviceDisabledDuringOOBE();
+  EXPECT_FALSE(IsDeviceDisabled());
+}
+
+// Verifies that the device is not considered disabled during OOBE when it is
+// explicitly marked as not disabled.
+TEST_F(DeviceDisablingManagerTest, NotDisabledWhenExplicitlyNotDisabled) {
+  SetDeviceDisabled(false);
+  CheckWhetherDeviceDisabledDuringOOBE();
+  EXPECT_FALSE(IsDeviceDisabled());
+}
+
+// Verifies that the device is not considered disabled during OOBE when device
+// disabling is turned off by flag, even if the device is marked as disabled.
+TEST_F(DeviceDisablingManagerTest, NotDisabledWhenTurnedOffByFlag) {
+  CommandLine::ForCurrentProcess()->AppendSwitch(
+      switches::kDisableDeviceDisabling);
+  SetDeviceDisabled(true);
+  CheckWhetherDeviceDisabledDuringOOBE();
+  EXPECT_FALSE(IsDeviceDisabled());
+}
+
+// Verifies that the device is not considered disabled during OOBE when it is
+// already enrolled, even if the device is marked as disabled.
+TEST_F(DeviceDisablingManagerTest, DoNotShowWhenEnterpriseOwned) {
+  SetDeviceMode(policy::DEVICE_MODE_ENTERPRISE);
+  SetDeviceDisabled(true);
+  CheckWhetherDeviceDisabledDuringOOBE();
+  EXPECT_FALSE(IsDeviceDisabled());
+}
+
+// Verifies that the device is not considered disabled during OOBE when it is
+// already owned by a consumer, even if the device is marked as disabled.
+TEST_F(DeviceDisablingManagerTest, DoNotShowWhenConsumerOwned) {
+  SetDeviceMode(policy::DEVICE_MODE_CONSUMER);
+  SetDeviceDisabled(true);
+  CheckWhetherDeviceDisabledDuringOOBE();
+  EXPECT_FALSE(IsDeviceDisabled());
+}
+
+// Verifies that the device is considered disabled during OOBE when it is marked
+// as disabled, device disabling is not turned off by flag and the device is not
+// owned yet.
+TEST_F(DeviceDisablingManagerTest, ShowWhenDisabledAndNotOwned) {
+  SetDeviceDisabled(true);
+  CheckWhetherDeviceDisabledDuringOOBE();
+  EXPECT_TRUE(IsDeviceDisabled());
+  EXPECT_EQ(kDisabledMessage, GetDisabledMessage());
+}
+
+}  // namespace system
+}  // namespace chromeos