Add some unittests for EasyUnlockScreenlockStateHandler

chrome/browser/signin/easy_unlock_screenlock_state_handler_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 <string>
+#include <vector>
+
+#include "base/strings/string16.h"
+#include "base/strings/string_util.h"
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/signin/easy_unlock_screenlock_state_handler.h"
+#include "chrome/browser/signin/easy_unlock_service.h"
+#include "chrome/browser/signin/screenlock_bridge.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/grit/generated_resources.h"
+#include "chrome/test/base/testing_pref_service_syncable.h"
+#include "components/pref_registry/pref_registry_syncable.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/base/l10n/l10n_util.h"
+
+namespace {
+
+// Resource URLs for icons used by EasyUnlockScreenlockStateHandler.
+const char kLockedIconURL[] = "chrome://theme/IDR_EASY_UNLOCK_LOCKED";
+const char kUnlockedIconURL[] = "chrome://theme/IDR_EASY_UNLOCK_UNLOCKED";
+const char kSpinnerIconURL[] = "chrome://theme/IDR_EASY_UNLOCK_SPINNER";
+
+// The expected size of user pod custom icons set by
+// EasyUnlockScreenlockStateHandler.
+const int kExpectedIconSize = 27;
+
+// Checks if |input| string has any unreplaced placeholders.
+bool StringHasPlaceholders(const base::string16& input) {
+  std::vector<size_t> offsets;
+  std::vector<base::string16> subst;
+  subst.push_back(base::string16());
+
+  base::string16 replaced = ReplaceStringPlaceholders(input, subst, &offsets);
+  return !offsets.empty();
+}
+
+// Fake lock handler to be used in these tests.
+class TestLockHandler : public ScreenlockBridge::LockHandler {
+ public:
+  explicit TestLockHandler(const std::string& user_email)
+      : user_email_(user_email),
+        show_icon_count_(0u),
+        auth_type_(OFFLINE_PASSWORD) {
+  }
+  virtual ~TestLockHandler() {}
+
+  // ScreenlockBridge::LockHandler implementation:
+  virtual void ShowBannerMessage(const base::string16& message) OVERRIDE {
+    ASSERT_FALSE(true) << "Should not be reached.";
+  }
+
+  virtual void ShowUserPodCustomIcon(
+      const std::string& user_email,
+      const ScreenlockBridge::UserPodCustomIconOptions& icon) OVERRIDE {
+    ASSERT_EQ(user_email_, user_email);
+    ++show_icon_count_;
+    last_custom_icon_ = icon.ToDictionaryValue().Pass();
+    ValidateCustomIcon();
+  }
+
+  virtual void HideUserPodCustomIcon(const std::string& user_email) OVERRIDE {
+    ASSERT_EQ(user_email_, user_email);
+    last_custom_icon_.reset();
+  }
+
+  virtual void EnableInput() OVERRIDE {
+    ASSERT_FALSE(true) << "Should not be reached.";
+  }
+
+  virtual void SetAuthType(const std::string& user_email,
+                           AuthType auth_type,
+                           const base::string16& auth_value) OVERRIDE {
+    ASSERT_EQ(user_email_, user_email);
+    // Generally, this is allowed, but EasyUnlockScreenlockStateHandler should
+    // avoid resetting the same auth type.
+    EXPECT_NE(auth_type_, auth_type);
+
+    auth_type_ = auth_type;
+    auth_value_ = auth_value;
+  }
+
+  virtual AuthType GetAuthType(const std::string& user_email) const OVERRIDE {
+    EXPECT_EQ(user_email_, user_email);
+    return auth_type_;
+  }
+
+  virtual void Unlock(const std::string& user_email) OVERRIDE {
+    ASSERT_FALSE(true) << "Should not be reached.";
+  }
+
+  // Utility methods used by tests:
+
+  // Gets last set auth value.
+  base::string16 GetAuthValue() const {
+    return auth_value_;
+  }
+
+  // Sets the auth value.
+  void SetAuthValue(const base::string16& value) {
+    auth_value_ = value;
+  }
+
+  // Returns the number of times an icon was shown since the last call to this
+  // method.
+  size_t GetAndResetShowIconCount() {
+    size_t result = show_icon_count_;
+    show_icon_count_ = 0u;
+    return result;
+  }
+
+  // Whether the custom icon is set.
+  bool HasCustomIcon() const {
+    return last_custom_icon_;
+  }
+
+  // If custom icon is set, returns the icon's resource URL.
+  // If there is no icon, or if it doesn't have a resource URL set, returns
+  // an empty string.
+  std::string GetCustomIconURL() const {
+    std::string result;
+    if (last_custom_icon_)
+      last_custom_icon_->GetString("resourceUrl", &result);
+    return result;
+  }
+
+  // Whether the custom icon is set and it has a tooltip.
+  bool CustomIconHasTooltip() const {
+    return last_custom_icon_ && last_custom_icon_->HasKey("tooltip");
+  }
+
+  // Gets the custom icon's tooltip text, if one is set.
+  base::string16 GetCustomIconTooltip() const {
+    base::string16 result;
+    if (last_custom_icon_)
+      last_custom_icon_->GetString("tooltip.text", &result);
+    return result;
+  }
+
+  // Whether the custom icon's tooltip should be autoshown. If the icon is not
+  // set, or it doesn't have a tooltip, returns false.
+  bool IsCustomIconTooltipAutoshown() const {
+    bool result = false;
+    if (last_custom_icon_)
+      last_custom_icon_->GetBoolean("tooltip.autoshow", &result);
+    return result;
+  }
+
+  // Returns the custom icon's opacity. If the icon is not set, a negative value
+  // is returned.
+  int GetCustomIconOpacity() const {
+    int result = -1;
+    if (last_custom_icon_)
+      last_custom_icon_->GetInteger("opacity", &result);
+    return result;
+  }
+
+  // Whether the custom icon is set and if has hardlock capability enabed.
+  bool CustomIconHardlocksOnClick() const {
+    bool result = false;
+    if (last_custom_icon_)
+      last_custom_icon_->GetBoolean("hardlockOnClick", &result);
+    return result;
+  }
+
+  // Whether the custom icon is set and has an animation set.
+  bool IsCustomIconAnimated() const {
+    return last_custom_icon_ && last_custom_icon_->HasKey("animation");
+  }
+
+ private:
+  // Does some sanity checks on the last icon set by |ShowUserPodCustomIcon|.
+  // It will cause a test failure if the icon is not valid.
+  void ValidateCustomIcon() {
+    ASSERT_TRUE(last_custom_icon_.get());
+
+    EXPECT_FALSE(last_custom_icon_->HasKey("data"));
+
+    int height = 0;
+    last_custom_icon_->GetInteger("size.height", &height);
+    EXPECT_EQ(kExpectedIconSize, height);
+
+    int width = 0;
+    last_custom_icon_->GetInteger("size.width", &width);
+    EXPECT_EQ(kExpectedIconSize, width);
+
+    if (last_custom_icon_->HasKey("animation")) {
+      int animation_resource_width = -1;
+      EXPECT_TRUE(last_custom_icon_->GetInteger("animation.resourceWidth",
+                                                &animation_resource_width));
+      EXPECT_GT(animation_resource_width, kExpectedIconSize);
+      EXPECT_EQ(0, animation_resource_width % kExpectedIconSize);
+      EXPECT_TRUE(
+          last_custom_icon_->GetInteger("animation.frameLengthMs", NULL));
+    }
+
+    if (last_custom_icon_->HasKey("tooltip")) {
+      base::string16 tooltip;
+      EXPECT_TRUE(last_custom_icon_->GetString("tooltip.text", &tooltip));
+      EXPECT_FALSE(tooltip.empty());
+      EXPECT_FALSE(StringHasPlaceholders(tooltip));
+    }
+  }
+
+  // The fake user email used in test. All methods called on |this| should be
+  // associated with this user.
+  const std::string user_email_;
+
+  // The last icon set using |SetUserPodCustomIcon|. Call to
+  // |HideUserPodcustomIcon| resets it.
+  scoped_ptr<base::DictionaryValue> last_custom_icon_;
+  size_t show_icon_count_;
+
+  // Auth type and value set using |SetAuthType|.
+  AuthType auth_type_;
+  base::string16 auth_value_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestLockHandler);
+};
+
+class EasyUnlockScreenlockStateHandlerTest : public testing::Test {
+ public:
+  EasyUnlockScreenlockStateHandlerTest() : user_email_("test_user@gmail.com") {}
+  virtual ~EasyUnlockScreenlockStateHandlerTest() {}
+
+  virtual void SetUp() OVERRIDE {
+    pref_service_.reset(new TestingPrefServiceSyncable());
+
+    // The preference used to determine if easy unlock was previously used by
+    // the user on the device ought to be registered by the EasyUnlockService.
+    EasyUnlockService::RegisterProfilePrefs(pref_service_->registry());
+
+    // Create and inject fake lock handler to the screenlock bridge.
+    lock_handler_.reset(new TestLockHandler(user_email_));
+    ScreenlockBridge* screenlock_bridge = ScreenlockBridge::Get();
+    screenlock_bridge->SetLockHandler(lock_handler_.get());
+
+    // Create the screenlock state handler object that will be tested.
+    state_handler_.reset(
+        new EasyUnlockScreenlockStateHandler(user_email_,
+                                             pref_service_.get(),
+                                             screenlock_bridge));
+  }
+
+  virtual void TearDown() OVERRIDE {
+    ScreenlockBridge::Get()->SetLockHandler(NULL);
+    lock_handler_.reset();
+    state_handler_.reset();
+  }
+
+ protected:
+  // The state handler that is being tested.
+  scoped_ptr<EasyUnlockScreenlockStateHandler> state_handler_;
+
+  // The user associated with |state_handler_|.
+  const std::string user_email_;
+
+  // Faked lock handler given to ScreenlockBridge during the test. Abstracts
+  // the screen lock UI.
+  scoped_ptr<TestLockHandler> lock_handler_;
+
+  // The user's preferences.
+  scoped_ptr<TestingPrefServiceSyncable> pref_service_;
+};
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest, AuthenticatedInitialRun) {
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED);
+
+  EXPECT_EQ(1u, lock_handler_->GetAndResetShowIconCount());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::USER_CLICK,
+            lock_handler_->GetAuthType(user_email_));
+
+  ASSERT_TRUE(lock_handler_->HasCustomIcon());
+  EXPECT_EQ(kUnlockedIconURL, lock_handler_->GetCustomIconURL());
+  EXPECT_TRUE(lock_handler_->CustomIconHasTooltip());
+  EXPECT_TRUE(lock_handler_->IsCustomIconTooltipAutoshown());
+  EXPECT_FALSE(lock_handler_->CustomIconHardlocksOnClick());
+  EXPECT_FALSE(lock_handler_->IsCustomIconAnimated());
+  EXPECT_EQ(100, lock_handler_->GetCustomIconOpacity());
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED);
+  // Duplicated state change should be ignored.
+  EXPECT_EQ(0u, lock_handler_->GetAndResetShowIconCount());
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest, AuthenticatedNotInitialRun) {
+  // Update preference for showing tutorial.
+  pref_service_->SetBoolean(prefs::kEasyUnlockShowTutorial, false);
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED);
+
+  EXPECT_EQ(1u, lock_handler_->GetAndResetShowIconCount());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::USER_CLICK,
+            lock_handler_->GetAuthType(user_email_));
+
+  ASSERT_TRUE(lock_handler_->HasCustomIcon());
+  EXPECT_EQ(kUnlockedIconURL, lock_handler_->GetCustomIconURL());
+  EXPECT_TRUE(lock_handler_->CustomIconHasTooltip());
+  EXPECT_FALSE(lock_handler_->IsCustomIconTooltipAutoshown());
+  EXPECT_TRUE(lock_handler_->CustomIconHardlocksOnClick());
+  EXPECT_FALSE(lock_handler_->IsCustomIconAnimated());
+  EXPECT_EQ(100, lock_handler_->GetCustomIconOpacity());
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest, BluetoothConnecting) {
+  pref_service_->SetBoolean(prefs::kEasyUnlockShowTutorial, false);
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_BLUETOOTH_CONNECTING);
+
+  EXPECT_EQ(1u, lock_handler_->GetAndResetShowIconCount());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::OFFLINE_PASSWORD,
+            lock_handler_->GetAuthType(user_email_));
+
+  ASSERT_TRUE(lock_handler_->HasCustomIcon());
+  EXPECT_EQ(kSpinnerIconURL, lock_handler_->GetCustomIconURL());
+  EXPECT_FALSE(lock_handler_->CustomIconHasTooltip());
+  EXPECT_FALSE(lock_handler_->CustomIconHardlocksOnClick());
+  EXPECT_TRUE(lock_handler_->IsCustomIconAnimated());
+  EXPECT_EQ(100, lock_handler_->GetCustomIconOpacity());
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_BLUETOOTH_CONNECTING);
+  // Duplicated state change should be ignored.
+  EXPECT_EQ(0u, lock_handler_->GetAndResetShowIconCount());
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest, PhoneLocked) {
+  pref_service_->SetBoolean(prefs::kEasyUnlockShowTutorial, false);
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_PHONE_LOCKED);
+
+  EXPECT_EQ(1u, lock_handler_->GetAndResetShowIconCount());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::OFFLINE_PASSWORD,
+            lock_handler_->GetAuthType(user_email_));
+
+  ASSERT_TRUE(lock_handler_->HasCustomIcon());
+  EXPECT_EQ(kLockedIconURL, lock_handler_->GetCustomIconURL());
+  EXPECT_TRUE(lock_handler_->CustomIconHasTooltip());
+  EXPECT_FALSE(lock_handler_->IsCustomIconTooltipAutoshown());
+  EXPECT_FALSE(lock_handler_->CustomIconHardlocksOnClick());
+  EXPECT_FALSE(lock_handler_->IsCustomIconAnimated());
+  EXPECT_EQ(100, lock_handler_->GetCustomIconOpacity());
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_PHONE_LOCKED);
+  // Duplicated state change should be ignored.
+  EXPECT_EQ(0u, lock_handler_->GetAndResetShowIconCount());
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest, PhoneNotAuthenticated) {
+  pref_service_->SetBoolean(prefs::kEasyUnlockShowTutorial, false);
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_PHONE_NOT_AUTHENTICATED);
+
+  EXPECT_EQ(1u, lock_handler_->GetAndResetShowIconCount());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::OFFLINE_PASSWORD,
+            lock_handler_->GetAuthType(user_email_));
+
+  ASSERT_TRUE(lock_handler_->HasCustomIcon());
+  EXPECT_EQ(kLockedIconURL, lock_handler_->GetCustomIconURL());
+  EXPECT_TRUE(lock_handler_->CustomIconHasTooltip());
+  EXPECT_FALSE(lock_handler_->IsCustomIconTooltipAutoshown());
+  EXPECT_FALSE(lock_handler_->CustomIconHardlocksOnClick());
+  EXPECT_FALSE(lock_handler_->IsCustomIconAnimated());
+  EXPECT_EQ(100, lock_handler_->GetCustomIconOpacity());
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_PHONE_NOT_AUTHENTICATED);
+  // Duplicated state change should be ignored.
+  EXPECT_EQ(0u, lock_handler_->GetAndResetShowIconCount());
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest, StatesWithOpaqueIcons) {
+  pref_service_->SetBoolean(prefs::kEasyUnlockShowTutorial, false);
+
+  std::vector<EasyUnlockScreenlockStateHandler::State> states;
+  states.push_back(EasyUnlockScreenlockStateHandler::STATE_NO_BLUETOOTH);
+  states.push_back(EasyUnlockScreenlockStateHandler::STATE_NO_PHONE);
+  states.push_back(EasyUnlockScreenlockStateHandler::STATE_PHONE_UNSUPPORTED);
+  states.push_back(EasyUnlockScreenlockStateHandler::STATE_PHONE_UNLOCKABLE);
+
+  for (size_t i = 0; i < states.size(); ++i) {
+    state_handler_->ChangeState(states[i]);
+
+    EXPECT_EQ(1u, lock_handler_->GetAndResetShowIconCount())
+        << "State: " << states[i];
+    EXPECT_EQ(ScreenlockBridge::LockHandler::OFFLINE_PASSWORD,
+              lock_handler_->GetAuthType(user_email_))
+        << "State: " << states[i];
+
+    ASSERT_TRUE(lock_handler_->HasCustomIcon())
+        << "State: " << states[i];
+    EXPECT_EQ(kLockedIconURL, lock_handler_->GetCustomIconURL())
+        << "State: " << states[i];
+    EXPECT_TRUE(lock_handler_->CustomIconHasTooltip())
+        << "State: " << states[i];
+    EXPECT_FALSE(lock_handler_->IsCustomIconTooltipAutoshown())
+        << "State: " << states[i];
+    EXPECT_FALSE(lock_handler_->CustomIconHardlocksOnClick())
+        << "State: " << states[i];
+    EXPECT_FALSE(lock_handler_->IsCustomIconAnimated())
+        << "State: " << states[i];
+    EXPECT_EQ(50, lock_handler_->GetCustomIconOpacity())
+        << "State: " << states[i];
+
+    state_handler_->ChangeState(states[i]);
+    EXPECT_EQ(0u, lock_handler_->GetAndResetShowIconCount())
+        << "State: " << states[i];
+  }
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest,
+       LockScreenClearedOnStateHandlerDestruction) {
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED);
+
+  EXPECT_EQ(1u, lock_handler_->GetAndResetShowIconCount());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::USER_CLICK,
+            lock_handler_->GetAuthType(user_email_));
+
+  ASSERT_TRUE(lock_handler_->HasCustomIcon());
+
+  state_handler_.reset();
+
+  EXPECT_EQ(0u, lock_handler_->GetAndResetShowIconCount());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::OFFLINE_PASSWORD,
+            lock_handler_->GetAuthType(user_email_));
+
+  ASSERT_FALSE(lock_handler_->HasCustomIcon());
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest, StatePreservedWhenScreenUnlocks) {
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED);
+
+  EXPECT_EQ(1u, lock_handler_->GetAndResetShowIconCount());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::USER_CLICK,
+            lock_handler_->GetAuthType(user_email_));
+  ASSERT_TRUE(lock_handler_->HasCustomIcon());
+
+  ScreenlockBridge::Get()->SetLockHandler(NULL);
+  lock_handler_.reset(new TestLockHandler(user_email_));
+  EXPECT_EQ(0u, lock_handler_->GetAndResetShowIconCount());
+  ScreenlockBridge::Get()->SetLockHandler(lock_handler_.get());
+
+  EXPECT_EQ(1u, lock_handler_->GetAndResetShowIconCount());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::USER_CLICK,
+            lock_handler_->GetAuthType(user_email_));
+  ASSERT_TRUE(lock_handler_->HasCustomIcon());
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest, StateChangeWhileScreenUnlocked) {
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED);
+
+  EXPECT_EQ(1u, lock_handler_->GetAndResetShowIconCount());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::USER_CLICK,
+            lock_handler_->GetAuthType(user_email_));
+  ASSERT_TRUE(lock_handler_->HasCustomIcon());
+
+  ScreenlockBridge::Get()->SetLockHandler(NULL);
+  lock_handler_.reset(new TestLockHandler(user_email_));
+  EXPECT_EQ(0u, lock_handler_->GetAndResetShowIconCount());
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_BLUETOOTH_CONNECTING);
+
+  ScreenlockBridge::Get()->SetLockHandler(lock_handler_.get());
+
+  EXPECT_EQ(1u, lock_handler_->GetAndResetShowIconCount());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::OFFLINE_PASSWORD,
+            lock_handler_->GetAuthType(user_email_));
+  ASSERT_TRUE(lock_handler_->HasCustomIcon());
+  EXPECT_TRUE(lock_handler_->IsCustomIconAnimated());
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest,
+       HardlockEnabledAfterInitialUnlock) {
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED);
+
+  ASSERT_TRUE(lock_handler_->HasCustomIcon());
+  EXPECT_FALSE(lock_handler_->CustomIconHardlocksOnClick());
+
+  ScreenlockBridge::Get()->SetLockHandler(NULL);
+  lock_handler_.reset(new TestLockHandler(user_email_));
+  ScreenlockBridge::Get()->SetLockHandler(lock_handler_.get());
+
+  ASSERT_TRUE(lock_handler_->HasCustomIcon());
+  EXPECT_TRUE(lock_handler_->CustomIconHardlocksOnClick());
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest, InactiveStateHidesIcon) {
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED);
+
+  ASSERT_TRUE(lock_handler_->HasCustomIcon());
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_INACTIVE);
+
+  ASSERT_FALSE(lock_handler_->HasCustomIcon());
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest,
+       AuthenticatedStateClearsPreviousAuthValue) {
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_INACTIVE);
+
+  lock_handler_->SetAuthValue(base::ASCIIToUTF16("xxx"));
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED);
+
+  EXPECT_EQ(l10n_util::GetStringUTF16(
+                IDS_EASY_UNLOCK_SCREENLOCK_USER_POD_AUTH_VALUE),
+            lock_handler_->GetAuthValue());
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_NO_PHONE);
+
+  EXPECT_EQ(base::string16(), lock_handler_->GetAuthValue());
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest,
+       ChangingStateDoesNotAffectAuthValueIfAuthTypeDoesNotChange) {
+  lock_handler_->SetAuthValue(base::ASCIIToUTF16("xxx"));
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_NO_PHONE);
+  EXPECT_EQ(base::ASCIIToUTF16("xxx"), lock_handler_->GetAuthValue());
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_PHONE_NOT_AUTHENTICATED);
+  EXPECT_EQ(base::ASCIIToUTF16("xxx"), lock_handler_->GetAuthValue());
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_BLUETOOTH_CONNECTING);
+  EXPECT_EQ(base::ASCIIToUTF16("xxx"), lock_handler_->GetAuthValue());
+  EXPECT_TRUE(lock_handler_->IsCustomIconAnimated());
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest, StateChangesIgnoredIfHardlocked) {
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED);
+
+  lock_handler_->SetAuthType(
+      user_email_,
+      ScreenlockBridge::LockHandler::FORCE_OFFLINE_PASSWORD,
+      base::string16());
+  lock_handler_->HideUserPodCustomIcon(user_email_);
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_NO_PHONE);
+  EXPECT_FALSE(lock_handler_->HasCustomIcon());
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED);
+  EXPECT_FALSE(lock_handler_->HasCustomIcon());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::FORCE_OFFLINE_PASSWORD,
+            lock_handler_->GetAuthType(user_email_));
+}
+
+TEST_F(EasyUnlockScreenlockStateHandlerTest,
+       LockScreenChangeableAfterHardlockUnlocked) {
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED);
+
+  lock_handler_->SetAuthType(
+      user_email_,
+      ScreenlockBridge::LockHandler::FORCE_OFFLINE_PASSWORD,
+      base::string16());
+  lock_handler_->HideUserPodCustomIcon(user_email_);
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_NO_PHONE);
+  EXPECT_FALSE(lock_handler_->HasCustomIcon());
+
+  ScreenlockBridge::Get()->SetLockHandler(NULL);
+  lock_handler_.reset(new TestLockHandler(user_email_));
+  EXPECT_EQ(0u, lock_handler_->GetAndResetShowIconCount());
+  ScreenlockBridge::Get()->SetLockHandler(lock_handler_.get());
+
+  EXPECT_EQ(1u, lock_handler_->GetAndResetShowIconCount());
+  EXPECT_TRUE(lock_handler_->HasCustomIcon());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::OFFLINE_PASSWORD,
+            lock_handler_->GetAuthType(user_email_));
+
+  state_handler_->ChangeState(
+      EasyUnlockScreenlockStateHandler::STATE_AUTHENTICATED);
+  EXPECT_EQ(1u, lock_handler_->GetAndResetShowIconCount());
+  EXPECT_TRUE(lock_handler_->HasCustomIcon());
+  EXPECT_EQ(ScreenlockBridge::LockHandler::USER_CLICK,
+            lock_handler_->GetAuthType(user_email_));
+  EXPECT_TRUE(lock_handler_->CustomIconHardlocksOnClick());
+}
+
+}  // namespace