Policy implementation for encryptfs to ext4 migration strategy

chrome/browser/chromeos/arc/arc_util_unittest.cc

Index: chrome/browser/chromeos/arc/arc_util_unittest.cc
diff --git a/chrome/browser/chromeos/arc/arc_util_unittest.cc b/chrome/browser/chromeos/arc/arc_util_unittest.cc
index 92daee101c29c72f2f400ee6dac39c9d3462f048..86667654340548ad6057a6469a733eb3061c2c94 100644
--- a/chrome/browser/chromeos/arc/arc_util_unittest.cc
+++ b/chrome/browser/chromeos/arc/arc_util_unittest.cc
@@ -17,12 +17,18 @@
 #include "chrome/browser/chromeos/login/users/fake_chrome_user_manager.h"
 #include "chrome/browser/chromeos/login/users/scoped_user_manager_enabler.h"
 #include "chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h"
+#include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
+#include "chrome/browser/chromeos/settings/install_attributes.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_profile.h"
+#include "components/policy/core/common/cloud/cloud_policy_constants.h"
+#include "components/prefs/pref_registry_simple.h"
 #include "components/prefs/pref_service.h"
+#include "components/prefs/pref_service_factory.h"
 #include "components/prefs/testing_pref_service.h"
+#include "components/prefs/testing_pref_store.h"
 #include "components/signin/core/account_id/account_id.h"
 #include "components/sync_preferences/testing_pref_service_syncable.h"
 #include "components/user_manager/known_user.h"
@@ -39,6 +45,12 @@ namespace {
 constexpr char kTestProfileName[] = "user@gmail.com";
 constexpr char kTestGaiaId[] = "1234567890";
 
+// The constants matching the values from DeviceEcryptfsMigrationStrategy
+// policy.
+constexpr int kMigrationAllowedPolicyUnset = 0;
+constexpr int kMigrationAllowedPolicyDisabled = 1;
+constexpr int kMigrationAllowedPolicyEnabled = 2;
+
 class ScopedLogIn {
  public:
   ScopedLogIn(
@@ -88,6 +100,22 @@ class ScopedLogIn {
   DISALLOW_COPY_AND_ASSIGN(ScopedLogIn);
 };
 
+class FakeInstallAttributesManaged : public chromeos::InstallAttributes {
+ public:
+  FakeInstallAttributesManaged() : chromeos::InstallAttributes(nullptr) {
+    device_locked_ = true;
+  }
+
+  ~FakeInstallAttributesManaged() {
+    policy::BrowserPolicyConnectorChromeOS::RemoveInstallAttributesForTesting();
+  }
+
+  void SetIsManaged(bool is_managed) {
+    registration_mode_ = is_managed ? policy::DEVICE_MODE_ENTERPRISE
+                                    : policy::DEVICE_MODE_CONSUMER;
+  }
+};
+
 class FakeUserManagerWithLocalState : public chromeos::FakeChromeUserManager {
  public:
   FakeUserManagerWithLocalState()
@@ -96,11 +124,16 @@ class FakeUserManagerWithLocalState : public chromeos::FakeChromeUserManager {
   }
 
   PrefService* GetLocalState() const override {
+    if (local_state_)
+      return local_state_;
     return test_local_state_.get();
   }
 
+  void SetLocalState(PrefService* local_state) { local_state_ = local_state; }
+
  private:
   std::unique_ptr<TestingPrefServiceSimple> test_local_state_;
+  PrefService* local_state_ = nullptr;
 
   DISALLOW_COPY_AND_ASSIGN(FakeUserManagerWithLocalState);
 };
@@ -109,7 +142,13 @@ class FakeUserManagerWithLocalState : public chromeos::FakeChromeUserManager {
 
 class ChromeArcUtilTest : public testing::Test {
  public:
-  ChromeArcUtilTest() = default;
+  ChromeArcUtilTest() {
+    auto attributes = base::MakeUnique<FakeInstallAttributesManaged>();
+    attributes_ = attributes.get();
+    policy::BrowserPolicyConnectorChromeOS::SetInstallAttributesForTesting(
+        attributes.release());
+  }
+
   ~ChromeArcUtilTest() override = default;
 
   void SetUp() override {
@@ -137,6 +176,15 @@ class ChromeArcUtilTest : public testing::Test {
         user_manager::UserManager::Get());
   }
 
+  FakeUserManagerWithLocalState* GetFakeUserManagerWithLocalState() const {
+    return static_cast<FakeUserManagerWithLocalState*>(
+        user_manager::UserManager::Get());
+  }
+
+  void SetDeviceIsEnterpriseManaged(bool is_managed) {
+    attributes_->SetIsManaged(is_managed);
+  }
+
   void LogIn() {
     const auto account_id = AccountId::FromUserEmailGaiaId(
         profile()->GetProfileUserName(), kTestGaiaId);
@@ -144,11 +192,42 @@ class ChromeArcUtilTest : public testing::Test {
     GetFakeUserManager()->LoginUser(account_id);
   }
 
+  void SetMigrationPolicy(bool migration_allowed) {
+    const int pref_value = migration_allowed ? kMigrationAllowedPolicyEnabled
+                                             : kMigrationAllowedPolicyDisabled;
+    auto* const command_line = base::CommandLine::ForCurrentProcess();
+    command_line->InitFromArgv({"", "--need-arc-migration-policy-check",
+                                "--arc-availability=officially-supported"});
+    SetDeviceIsEnterpriseManaged(true);
+    FakeUserManagerWithLocalState* const fake_user_manager =
+        GetFakeUserManagerWithLocalState();
+    PrefServiceFactory pref_service_factory;
+    managed_pref_store_ =
+        scoped_refptr<TestingPrefStore>(new TestingPrefStore());
+    user_pref_store_ = scoped_refptr<TestingPrefStore>(new TestingPrefStore());
+    managed_pref_store_->SetInteger(prefs::kDeviceEcryptfsMigrationStrategy,
+                                    pref_value);
+    pref_service_factory.set_managed_prefs(managed_pref_store_.get());
+    pref_service_factory.set_user_prefs(user_pref_store_.get());
+    scoped_refptr<PrefRegistrySimple> registry(new PrefRegistrySimple());
+    registry->RegisterIntegerPref(prefs::kDeviceEcryptfsMigrationStrategy,
+                                  kMigrationAllowedPolicyUnset);
+    pref_service_ = std::unique_ptr<PrefService>(
+        pref_service_factory.Create(registry.get()));
+    pref_service_->SetInteger(prefs::kDeviceEcryptfsMigrationStrategy,
+                              pref_value);
+    fake_user_manager->SetLocalState(pref_service_.get());
+  }
+
  private:
   std::unique_ptr<base::test::ScopedCommandLine> command_line_;
   content::TestBrowserThreadBundle thread_bundle_;
   std::unique_ptr<chromeos::ScopedUserManagerEnabler> user_manager_enabler_;
   std::unique_ptr<TestingProfile> profile_;
+  FakeInstallAttributesManaged* attributes_;
+  scoped_refptr<TestingPrefStore> managed_pref_store_;
+  scoped_refptr<TestingPrefStore> user_pref_store_;
+  std::unique_ptr<PrefService> pref_service_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeArcUtilTest);
 };
@@ -474,5 +553,38 @@ TEST_F(ChromeArcUtilTest, AreArcAllOptInPreferencesManagedForProfile) {
   EXPECT_TRUE(AreArcAllOptInPreferencesManagedForProfile(profile()));
 }
 
+TEST_F(ChromeArcUtilTest, IsMigrationAllowedConsumerOwned) {
+  ResetArcMigrationAllowedForTesting();
+  auto* const command_line = base::CommandLine::ForCurrentProcess();
+  command_line->InitFromArgv({"", "--need-arc-migration-policy-check",
+                              "--arc-availability=officially-supported"});
+  SetDeviceIsEnterpriseManaged(false);
+  EXPECT_TRUE(IsArcMigrationAllowed());
+}
+
+TEST_F(ChromeArcUtilTest, IsMigrationAllowedNoPolicy) {
+  ResetArcMigrationAllowedForTesting();
+  auto* const command_line = base::CommandLine::ForCurrentProcess();
+  command_line->InitFromArgv({"", "--need-arc-migration-policy-check",
+                              "--arc-availability=officially-supported"});
+  SetDeviceIsEnterpriseManaged(true);
+
+  EXPECT_FALSE(IsArcMigrationAllowed());
+}
+
+TEST_F(ChromeArcUtilTest, IsMigrationAllowedPolicyAllowed) {
+  ResetArcMigrationAllowedForTesting();
+  SetMigrationPolicy(true);
+
+  EXPECT_TRUE(IsArcMigrationAllowed());
+}
+
+TEST_F(ChromeArcUtilTest, IsMigrationAllowedPolicyDisabled) {
+  ResetArcMigrationAllowedForTesting();
+  SetMigrationPolicy(false);
+
+  EXPECT_FALSE(IsArcMigrationAllowed());
+}
+
 }  // namespace util
 }  // namespace arc