/* * Copyright (C) 2017 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package android.provider; import static com.google.android.collect.Sets.newHashSet; import static org.hamcrest.MatcherAssert.assertThat; import static org.hamcrest.Matchers.empty; import static org.hamcrest.Matchers.is; import static java.lang.reflect.Modifier.isFinal; import static java.lang.reflect.Modifier.isPublic; import static java.lang.reflect.Modifier.isStatic; import android.platform.test.annotations.Presubmit; import android.support.test.filters.SmallTest; import android.support.test.runner.AndroidJUnit4; import java.lang.reflect.Field; import java.util.HashSet; import java.util.Set; import org.junit.Test; import org.junit.runner.RunWith; /** Tests that ensure appropriate settings are backed up. */ @RunWith(AndroidJUnit4.class) @SmallTest public class SettingsBackupTest { /** * The following blacklists contain settings that should *not* be backed up and restored to * another device. As a general rule, anything that is not user configurable should be * blacklisted (and conversely, things that *are* user configurable *should* be backed up) */ private static final Set BACKUP_BLACKLISTED_SYSTEM_SETTINGS = newHashSet( Settings.System.ADVANCED_SETTINGS, // candidate for backup? Settings.System.ALARM_ALERT, // backup candidate? Settings.System.ALARM_ALERT_CACHE, // internal cache Settings.System.APPEND_FOR_LAST_AUDIBLE, // suffix deprecated since API 2 Settings.System.EGG_MODE, // I am the lolrus Settings.System.END_BUTTON_BEHAVIOR, // bug? Settings.System .HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY, // candidate for backup? Settings.System.LOCKSCREEN_DISABLED, // ? Settings.System.MEDIA_BUTTON_RECEIVER, // candidate for backup? Settings.System.MUTE_STREAMS_AFFECTED, // candidate for backup? Settings.System.NOTIFICATION_LIGHT_PULSE, // candidate for backup? Settings.System.NOTIFICATION_SOUND_CACHE, // internal cache Settings.System.POINTER_LOCATION, // backup candidate? Settings.System.RINGTONE_CACHE, // internal cache Settings.System.SETUP_WIZARD_HAS_RUN, // Only used by SuW Settings.System.SHOW_GTALK_SERVICE_STATUS, // candidate for backup? Settings.System.SHOW_TOUCHES, // bug? Settings.System.SIP_ADDRESS_ONLY, // value, not a setting Settings.System.SIP_ALWAYS, // value, not a setting Settings.System.SYSTEM_LOCALES, // bug? Settings.System.USER_ROTATION, // backup candidate? Settings.System.VIBRATE_IN_SILENT, // deprecated? Settings.System.VIBRATE_ON, // candidate for backup? Settings.System.VOLUME_ACCESSIBILITY, // used internally, changing value will // not change volume Settings.System.VOLUME_ALARM, // deprecated since API 2? Settings.System.VOLUME_BLUETOOTH_SCO, // deprecated since API 2? Settings.System.VOLUME_MASTER, // candidate for backup? Settings.System.VOLUME_MUSIC, // deprecated since API 2? Settings.System.VOLUME_NOTIFICATION, // deprecated since API 2? Settings.System.VOLUME_RING, // deprecated since API 2? Settings.System.VOLUME_SYSTEM, // deprecated since API 2? Settings.System.VOLUME_VOICE, // deprecated since API 2? Settings.System.WHEN_TO_MAKE_WIFI_CALLS, // bug? Settings.System.WINDOW_ORIENTATION_LISTENER_LOG // used for debugging only ); private static final Set BACKUP_BLACKLISTED_GLOBAL_SETTINGS = newHashSet( Settings.Global.ACTIVITY_MANAGER_CONSTANTS, Settings.Global.ADB_ENABLED, Settings.Global.ADD_USERS_WHEN_LOCKED, Settings.Global.AIRPLANE_MODE_ON, Settings.Global.AIRPLANE_MODE_RADIOS, Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS, Settings.Global.ALARM_MANAGER_CONSTANTS, Settings.Global.ALLOW_USER_SWITCHING_WHEN_SYSTEM_USER_LOCKED, Settings.Global.ALWAYS_FINISH_ACTIVITIES, Settings.Global.ANIMATOR_DURATION_SCALE, Settings.Global.APN_DB_UPDATE_CONTENT_URL, Settings.Global.APN_DB_UPDATE_METADATA_URL, Settings.Global.APP_IDLE_CONSTANTS, Settings.Global.ASSISTED_GPS_ENABLED, Settings.Global.AUDIO_SAFE_VOLUME_STATE, Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD, Settings.Global.BATTERY_DISCHARGE_THRESHOLD, Settings.Global.BLE_SCAN_ALWAYS_AVAILABLE, Settings.Global.BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX, Settings.Global.BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX, Settings.Global.BLUETOOTH_A2DP_SUPPORTS_OPTIONAL_CODECS_PREFIX, Settings.Global.BLUETOOTH_A2DP_OPTIONAL_CODECS_ENABLED_PREFIX, Settings.Global.BLUETOOTH_DISABLED_PROFILES, Settings.Global.BLUETOOTH_HEADSET_PRIORITY_PREFIX, Settings.Global.BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX, Settings.Global.BLUETOOTH_INTEROPERABILITY_LIST, Settings.Global.BLUETOOTH_MAP_CLIENT_PRIORITY_PREFIX, Settings.Global.BLUETOOTH_MAP_PRIORITY_PREFIX, Settings.Global.BLUETOOTH_ON, // Candidate for backup? Settings.Global.BLUETOOTH_PAN_PRIORITY_PREFIX, Settings.Global.BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX, Settings.Global.BLUETOOTH_SAP_PRIORITY_PREFIX, Settings.Global.BOOT_COUNT, Settings.Global.CAPTIVE_PORTAL_FALLBACK_URL, Settings.Global.CAPTIVE_PORTAL_HTTPS_URL, Settings.Global.CAPTIVE_PORTAL_HTTP_URL, Settings.Global.CAPTIVE_PORTAL_MODE, Settings.Global.CAPTIVE_PORTAL_OTHER_FALLBACK_URLS, Settings.Global.CAPTIVE_PORTAL_SERVER, Settings.Global.CAPTIVE_PORTAL_USE_HTTPS, Settings.Global.CAPTIVE_PORTAL_USER_AGENT, Settings.Global.CAR_DOCK_SOUND, Settings.Global.CARRIER_APP_WHITELIST, Settings.Global.CAR_UNDOCK_SOUND, Settings.Global.CDMA_CELL_BROADCAST_SMS, Settings.Global.CDMA_ROAMING_MODE, Settings.Global.CDMA_SUBSCRIPTION_MODE, Settings.Global.CELL_ON, Settings.Global.CERT_PIN_UPDATE_CONTENT_URL, Settings.Global.CERT_PIN_UPDATE_METADATA_URL, Settings.Global.COMPATIBILITY_MODE, Settings.Global.CONNECTIVITY_CHANGE_DELAY, Settings.Global.CONNECTIVITY_METRICS_BUFFER_SIZE, Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, Settings.Global.CONTACT_METADATA_SYNC_ENABLED, Settings.Global.CONTACTS_DATABASE_WAL_ENABLED, Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, Settings.Global.DATABASE_CREATION_BUILDID, Settings.Global.DATABASE_DOWNGRADE_REASON, Settings.Global.DATA_ROAMING, Settings.Global.DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS, Settings.Global.DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS, Settings.Global.DEBUG_APP, Settings.Global.DEBUG_VIEW_ATTRIBUTES, Settings.Global.DEFAULT_DNS_SERVER, Settings.Global.DEFAULT_INSTALL_LOCATION, Settings.Global.DESK_DOCK_SOUND, Settings.Global.DESK_UNDOCK_SOUND, Settings.Global.DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT, Settings.Global.DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES, Settings.Global.DEVELOPMENT_FORCE_RTL, Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, Settings.Global.DEVICE_DEMO_MODE, Settings.Global.DEVICE_IDLE_CONSTANTS, Settings.Global.DEVICE_IDLE_CONSTANTS_WATCH, Settings.Global.BATTERY_SAVER_CONSTANTS, Settings.Global.DEVICE_NAME, Settings.Global.DEVICE_POLICY_CONSTANTS, Settings.Global.DEVICE_PROVISIONED, Settings.Global.DEVICE_PROVISIONING_MOBILE_DATA_ENABLED, Settings.Global.DISK_FREE_CHANGE_REPORTING_THRESHOLD, Settings.Global.DISPLAY_SCALING_FORCE, Settings.Global.DISPLAY_SIZE_FORCED, Settings.Global.DNS_RESOLVER_MAX_SAMPLES, Settings.Global.DNS_RESOLVER_MIN_SAMPLES, Settings.Global.DNS_RESOLVER_SAMPLE_VALIDITY_SECONDS, Settings.Global.DNS_RESOLVER_SUCCESS_THRESHOLD_PERCENT, Settings.Global.DOCK_SOUNDS_ENABLED_WHEN_ACCESSIBILITY, Settings.Global.DOWNLOAD_MAX_BYTES_OVER_MOBILE, Settings.Global.DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE, Settings.Global.DROPBOX_AGE_SECONDS, Settings.Global.DROPBOX_MAX_FILES, Settings.Global.DROPBOX_QUOTA_KB, Settings.Global.DROPBOX_QUOTA_PERCENT, Settings.Global.DROPBOX_RESERVE_PERCENT, Settings.Global.DROPBOX_TAG_PREFIX, Settings.Global.EMERGENCY_AFFORDANCE_NEEDED, Settings.Global.ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED, Settings.Global.ENABLE_CACHE_QUOTA_CALCULATION, Settings.Global.ENABLE_CELLULAR_ON_BOOT, Settings.Global.ENABLE_DISKSTATS_LOGGING, Settings.Global.ENABLE_EPHEMERAL_FEATURE, Settings.Global.ENHANCED_4G_MODE_ENABLED, Settings.Global.EPHEMERAL_COOKIE_MAX_SIZE_BYTES, Settings.Global.ERROR_LOGCAT_PREFIX, Settings.Global.FANCY_IME_ANIMATIONS, Settings.Global.FORCE_ALLOW_ON_EXTERNAL, Settings.Global.FSTRIM_MANDATORY_INTERVAL, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, Settings.Global.GLOBAL_HTTP_PROXY_HOST, Settings.Global.GLOBAL_HTTP_PROXY_PAC, Settings.Global.GLOBAL_HTTP_PROXY_PORT, Settings.Global.GPRS_REGISTER_CHECK_PERIOD_MS, Settings.Global.HDMI_CONTROL_AUTO_DEVICE_OFF_ENABLED, Settings.Global.HDMI_CONTROL_AUTO_WAKEUP_ENABLED, Settings.Global.HDMI_CONTROL_ENABLED, Settings.Global.HDMI_SYSTEM_AUDIO_CONTROL_ENABLED, Settings.Global.HEADS_UP_NOTIFICATIONS_ENABLED, Settings.Global.HTTP_PROXY, Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY, Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY, Settings.Global.INTENT_FIREWALL_UPDATE_CONTENT_URL, Settings.Global.INTENT_FIREWALL_UPDATE_METADATA_URL, Settings.Global.JOB_SCHEDULER_CONSTANTS, Settings.Global.LANG_ID_UPDATE_CONTENT_URL, Settings.Global.LANG_ID_UPDATE_METADATA_URL, Settings.Global.LOCATION_BACKGROUND_THROTTLE_INTERVAL_MS, Settings.Global.LOCATION_BACKGROUND_THROTTLE_PROXIMITY_ALERT_INTERVAL_MS, Settings.Global.LOCATION_BACKGROUND_THROTTLE_PACKAGE_WHITELIST, Settings.Global.LOCATION_SETTINGS_LINK_TO_PERMISSIONS_ENABLED, Settings.Global.LOCK_SOUND, Settings.Global.LOW_BATTERY_SOUND, Settings.Global.LOW_BATTERY_SOUND_TIMEOUT, Settings.Global.LOW_POWER_MODE, Settings.Global.LTE_SERVICE_FORCED, Settings.Global.MAX_NOTIFICATION_ENQUEUE_RATE, Settings.Global.MDC_INITIAL_MAX_RETRY, Settings.Global.MHL_INPUT_SWITCHING_ENABLED, Settings.Global.MHL_POWER_CHARGE_ENABLED, Settings.Global.MOBILE_DATA, // Candidate for backup? Settings.Global.MOBILE_DATA_ALWAYS_ON, Settings.Global.MODE_RINGER, Settings.Global.MULTI_SIM_DATA_CALL_SUBSCRIPTION, Settings.Global.MULTI_SIM_SMS_PROMPT, Settings.Global.MULTI_SIM_SMS_SUBSCRIPTION, Settings.Global.MULTI_SIM_VOICE_CALL_SUBSCRIPTION, Settings.Global.MULTI_SIM_VOICE_PROMPT, Settings.Global.NETSTATS_DEV_BUCKET_DURATION, Settings.Global.NETSTATS_DEV_DELETE_AGE, Settings.Global.NETSTATS_DEV_PERSIST_BYTES, Settings.Global.NETSTATS_DEV_ROTATE_AGE, Settings.Global.NETSTATS_ENABLED, Settings.Global.NETSTATS_GLOBAL_ALERT_BYTES, Settings.Global.NETSTATS_POLL_INTERVAL, Settings.Global.NETSTATS_SAMPLE_ENABLED, Settings.Global.NETSTATS_TIME_CACHE_MAX_AGE, Settings.Global.NETSTATS_UID_BUCKET_DURATION, Settings.Global.NETSTATS_UID_DELETE_AGE, Settings.Global.NETSTATS_UID_PERSIST_BYTES, Settings.Global.NETSTATS_UID_ROTATE_AGE, Settings.Global.NETSTATS_UID_TAG_BUCKET_DURATION, Settings.Global.NETSTATS_UID_TAG_DELETE_AGE, Settings.Global.NETSTATS_UID_TAG_PERSIST_BYTES, Settings.Global.NETSTATS_UID_TAG_ROTATE_AGE, Settings.Global.NETWORK_AVOID_BAD_WIFI, Settings.Global.NETWORK_METERED_MULTIPATH_PREFERENCE, Settings.Global.NETWORK_PREFERENCE, Settings.Global.NETWORK_RECOMMENDATIONS_PACKAGE, Settings.Global.NETWORK_RECOMMENDATION_REQUEST_TIMEOUT_MS, Settings.Global.NETWORK_SCORER_APP, Settings.Global.NETWORK_SCORING_PROVISIONED, Settings.Global.NETWORK_SCORING_UI_ENABLED, Settings.Global.NETWORK_SWITCH_NOTIFICATION_DAILY_LIMIT, Settings.Global.NETWORK_SWITCH_NOTIFICATION_RATE_LIMIT_MILLIS, Settings.Global.NEW_CONTACT_AGGREGATOR, Settings.Global.NITZ_UPDATE_DIFF, Settings.Global.NITZ_UPDATE_SPACING, Settings.Global.NSD_ON, Settings.Global.NTP_SERVER, Settings.Global.NTP_TIMEOUT, Settings.Global.OTA_DISABLE_AUTOMATIC_UPDATE, Settings.Global.OVERLAY_DISPLAY_DEVICES, Settings.Global.PAC_CHANGE_DELAY, Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE, Settings.Global.PACKAGE_VERIFIER_ENABLE, Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, Settings.Global.PACKAGE_VERIFIER_SETTING_VISIBLE, Settings.Global.PACKAGE_VERIFIER_TIMEOUT, Settings.Global.PDP_WATCHDOG_ERROR_POLL_COUNT, Settings.Global.PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS, Settings.Global.PDP_WATCHDOG_LONG_POLL_INTERVAL_MS, Settings.Global.PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT, Settings.Global.PDP_WATCHDOG_POLL_INTERVAL_MS, Settings.Global.PDP_WATCHDOG_TRIGGER_PACKET_COUNT, Settings.Global.POLICY_CONTROL, Settings.Global.POWER_MANAGER_CONSTANTS, Settings.Global.PREFERRED_NETWORK_MODE, Settings.Global.PROVISIONING_APN_ALARM_DELAY_IN_MS, Settings.Global.RADIO_BLUETOOTH, Settings.Global.RADIO_CELL, Settings.Global.RADIO_NFC, Settings.Global.RADIO_WIFI, Settings.Global.RADIO_WIMAX, Settings.Global.RECOMMENDED_NETWORK_EVALUATOR_CACHE_EXPIRY_MS, Settings.Global.READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT, Settings.Global.REQUIRE_PASSWORD_TO_DECRYPT, Settings.Global.RETAIL_DEMO_MODE_CONSTANTS, Settings.Global.SAFE_BOOT_DISALLOWED, Settings.Global.SAMPLING_PROFILER_MS, Settings.Global.SELINUX_STATUS, Settings.Global.SELINUX_UPDATE_CONTENT_URL, Settings.Global.SELINUX_UPDATE_METADATA_URL, Settings.Global.SEND_ACTION_APP_ERROR, Settings.Global.SET_GLOBAL_HTTP_PROXY, Settings.Global.SET_INSTALL_LOCATION, Settings.Global.SETUP_PREPAID_DATA_SERVICE_URL, Settings.Global.SETUP_PREPAID_DETECTION_REDIR_HOST, Settings.Global.SETUP_PREPAID_DETECTION_TARGET_URL, Settings.Global.SHORTCUT_MANAGER_CONSTANTS, Settings.Global.SHOW_NOTIFICATION_CHANNEL_WARNINGS, Settings.Global.SHOW_TEMPERATURE_WARNING, Settings.Global.SMART_SELECTION_UPDATE_CONTENT_URL, Settings.Global.SMART_SELECTION_UPDATE_METADATA_URL, Settings.Global.SMS_OUTGOING_CHECK_INTERVAL_MS, Settings.Global.SMS_OUTGOING_CHECK_MAX_COUNT, Settings.Global.SMS_SHORT_CODE_CONFIRMATION, Settings.Global.SMS_SHORT_CODE_RULE, Settings.Global.SMS_SHORT_CODES_UPDATE_CONTENT_URL, Settings.Global.SMS_SHORT_CODES_UPDATE_METADATA_URL, Settings.Global.STORAGE_BENCHMARK_INTERVAL, Settings.Global.SYNC_MAX_RETRY_DELAY_IN_SECONDS, Settings.Global.SYS_FREE_STORAGE_LOG_INTERVAL, Settings.Global.SYS_STORAGE_CACHE_MAX_BYTES, Settings.Global.SYS_STORAGE_CACHE_PERCENTAGE, Settings.Global.SYS_STORAGE_FULL_THRESHOLD_BYTES, Settings.Global.SYS_STORAGE_THRESHOLD_MAX_BYTES, Settings.Global.SYS_STORAGE_THRESHOLD_PERCENTAGE, Settings.Global.TCP_DEFAULT_INIT_RWND, Settings.Global.TETHER_DUN_APN, Settings.Global.TETHER_DUN_REQUIRED, Settings.Global.TETHER_SUPPORTED, Settings.Global.THEATER_MODE_ON, Settings.Global.TRANSITION_ANIMATION_SCALE, Settings.Global.TRUSTED_SOUND, Settings.Global.TZINFO_UPDATE_CONTENT_URL, Settings.Global.TZINFO_UPDATE_METADATA_URL, Settings.Global.INSTALLED_INSTANT_APP_MIN_CACHE_PERIOD, Settings.Global.INSTALLED_INSTANT_APP_MAX_CACHE_PERIOD, Settings.Global.UNINSTALLED_INSTANT_APP_MIN_CACHE_PERIOD, Settings.Global.UNINSTALLED_INSTANT_APP_MAX_CACHE_PERIOD, Settings.Global.UNUSED_STATIC_SHARED_LIB_MIN_CACHE_PERIOD, Settings.Global.UNLOCK_SOUND, Settings.Global.USE_GOOGLE_MAIL, Settings.Global.VT_IMS_ENABLED, Settings.Global.WAIT_FOR_DEBUGGER, Settings.Global.NETWORK_ACCESS_TIMEOUT_MS, Settings.Global.WARNING_TEMPERATURE, Settings.Global.WEBVIEW_DATA_REDUCTION_PROXY_KEY, Settings.Global.WEBVIEW_FALLBACK_LOGIC_ENABLED, Settings.Global.WEBVIEW_MULTIPROCESS, Settings.Global.WEBVIEW_PROVIDER, Settings.Global.WFC_IMS_ENABLED, Settings.Global.WFC_IMS_MODE, Settings.Global.WFC_IMS_ROAMING_ENABLED, Settings.Global.WFC_IMS_ROAMING_MODE, Settings.Global.WIFI_BADGING_THRESHOLDS, Settings.Global.WIFI_BOUNCE_DELAY_OVERRIDE_MS, Settings.Global.WIFI_COUNTRY_CODE, Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, Settings.Global.WIFI_DISPLAY_CERTIFICATION_ON, Settings.Global.WIFI_DISPLAY_ON, Settings.Global.WIFI_DISPLAY_WPS_CONFIG, Settings.Global.WIFI_ENHANCED_AUTO_JOIN, Settings.Global.WIFI_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS, Settings.Global.WIFI_FRAMEWORK_SCAN_INTERVAL_MS, Settings.Global.WIFI_FREQUENCY_BAND, Settings.Global.WIFI_IDLE_MS, Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT, Settings.Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS, Settings.Global.WIFI_NETWORK_SHOW_RSSI, Settings.Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY, Settings.Global.WIFI_NUM_OPEN_NETWORKS_KEPT, Settings.Global.WIFI_ON, Settings.Global.WIFI_P2P_DEVICE_NAME, Settings.Global.WIFI_REENABLE_DELAY_MS, Settings.Global.WIFI_SAVED_STATE, Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, Settings.Global.WIFI_SCAN_BACKGROUND_THROTTLE_INTERVAL_MS, Settings.Global.WIFI_SCAN_BACKGROUND_THROTTLE_PACKAGE_WHITELIST, Settings.Global.WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS, Settings.Global.WIFI_SLEEP_POLICY, Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS, Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED, Settings.Global.WIFI_VERBOSE_LOGGING_ENABLED, Settings.Global.WIFI_WAKEUP_AVAILABLE, Settings.Global.WIFI_WATCHDOG_ON, Settings.Global.WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON, Settings.Global.WINDOW_ANIMATION_SCALE, Settings.Global.WIRELESS_CHARGING_STARTED_SOUND, Settings.Global.WTF_IS_FATAL, Settings.Global.ZEN_MODE, Settings.Global.ZEN_MODE_CONFIG_ETAG, Settings.Global.ZEN_MODE_RINGER_LEVEL); private static final Set BACKUP_BLACKLISTED_SECURE_SETTINGS = newHashSet( Settings.Secure.ACCESSIBILITY_SOFT_KEYBOARD_MODE, Settings.Secure.ALLOWED_GEOLOCATION_ORIGINS, Settings.Secure.ALWAYS_ON_VPN_APP, Settings.Secure.ALWAYS_ON_VPN_LOCKDOWN, Settings.Secure.ANDROID_ID, Settings.Secure.ANR_SHOW_BACKGROUND, Settings.Secure.ASSISTANT, Settings.Secure.ASSIST_DISCLOSURE_ENABLED, Settings.Secure.ASSIST_SCREENSHOT_ENABLED, Settings.Secure.ASSIST_STRUCTURE_ENABLED, Settings.Secure.AUTOFILL_SERVICE_SEARCH_URI, Settings.Secure.AUTOMATIC_STORAGE_MANAGER_BYTES_CLEARED, Settings.Secure.AUTOMATIC_STORAGE_MANAGER_ENABLED, Settings.Secure.AUTOMATIC_STORAGE_MANAGER_LAST_RUN, Settings.Secure.BACKUP_AUTO_RESTORE, Settings.Secure.BACKUP_ENABLED, Settings.Secure.BACKUP_PROVISIONED, Settings.Secure.BACKUP_TRANSPORT, Settings.Secure.CARRIER_APPS_HANDLED, Settings.Secure.CMAS_ADDITIONAL_BROADCAST_PKG, Settings.Secure.COMPLETED_CATEGORY_PREFIX, Settings.Secure.CONNECTIVITY_RELEASE_PENDING_INTENT_DELAY_MS, Settings.Secure.DEFAULT_INPUT_METHOD, Settings.Secure.DEMO_USER_SETUP_COMPLETE, Settings.Secure.DEVICE_PAIRED, Settings.Secure.DIALER_DEFAULT_APPLICATION, Settings.Secure.DISABLED_PRINT_SERVICES, Settings.Secure.DISABLED_SYSTEM_INPUT_METHODS, Settings.Secure.DISPLAY_DENSITY_FORCED, Settings.Secure.DOZE_ALWAYS_ON, Settings.Secure.EMERGENCY_ASSISTANCE_APPLICATION, Settings.Secure.ENABLED_NOTIFICATION_ASSISTANT, Settings.Secure.ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES, Settings.Secure.ENABLED_PRINT_SERVICES, Settings.Secure.IMMERSIVE_MODE_CONFIRMATIONS, Settings.Secure.INCALL_BACK_BUTTON_BEHAVIOR, Settings.Secure.INPUT_METHOD_SELECTOR_VISIBILITY, Settings.Secure.INPUT_METHODS_SUBTYPE_HISTORY, Settings.Secure.INSTALL_NON_MARKET_APPS, Settings.Secure.LAST_SETUP_SHOWN, Settings.Secure.LOCATION_MODE, Settings.Secure.LOCATION_PREVIOUS_MODE, Settings.Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS, // Candidate? Settings.Secure.LOCK_SCREEN_ALLOW_REMOTE_INPUT, // Candidate? Settings.Secure.LOCK_SCREEN_LOCK_AFTER_TIMEOUT, Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS, // Candidate? Settings.Secure.LOCK_TO_APP_EXIT_LOCKED, Settings.Secure.MANAGED_PROFILE_CONTACT_REMOTE_SEARCH, Settings.Secure.MULTI_PRESS_TIMEOUT, Settings.Secure.NFC_PAYMENT_FOREGROUND, Settings.Secure.OVERVIEW_LAST_STACK_ACTIVE_TIME, Settings.Secure.PACKAGE_VERIFIER_STATE, Settings.Secure.PACKAGE_VERIFIER_USER_CONSENT, Settings.Secure.PARENTAL_CONTROL_LAST_UPDATE, Settings.Secure.PAYMENT_SERVICE_SEARCH_URI, Settings.Secure.PRINT_SERVICE_SEARCH_URI, Settings.Secure.SCREENSAVER_ACTIVATE_ON_DOCK, // Candidate? Settings.Secure.SCREENSAVER_ACTIVATE_ON_SLEEP, // Candidate? Settings.Secure.SCREENSAVER_COMPONENTS, Settings.Secure.SCREENSAVER_DEFAULT_COMPONENT, // Candidate? Settings.Secure.SCREENSAVER_ENABLED, // Candidate? Settings.Secure.SEARCH_GLOBAL_SEARCH_ACTIVITY, Settings.Secure.SEARCH_MAX_RESULTS_PER_SOURCE, Settings.Secure.SEARCH_MAX_RESULTS_TO_DISPLAY, Settings.Secure.SEARCH_MAX_SHORTCUTS_RETURNED, Settings.Secure.SEARCH_MAX_SOURCE_EVENT_AGE_MILLIS, Settings.Secure.SEARCH_MAX_STAT_AGE_MILLIS, Settings.Secure.SEARCH_MIN_CLICKS_FOR_SOURCE_RANKING, Settings.Secure.SEARCH_MIN_IMPRESSIONS_FOR_SOURCE_RANKING, Settings.Secure.SEARCH_NUM_PROMOTED_SOURCES, Settings.Secure.SEARCH_PER_SOURCE_CONCURRENT_QUERY_LIMIT, Settings.Secure.SEARCH_PREFILL_MILLIS, Settings.Secure.SEARCH_PROMOTED_SOURCE_DEADLINE_MILLIS, Settings.Secure.SEARCH_QUERY_THREAD_CORE_POOL_SIZE, Settings.Secure.SEARCH_QUERY_THREAD_MAX_POOL_SIZE, Settings.Secure.SEARCH_SHORTCUT_REFRESH_CORE_POOL_SIZE, Settings.Secure.SEARCH_SHORTCUT_REFRESH_MAX_POOL_SIZE, Settings.Secure.SEARCH_SOURCE_TIMEOUT_MILLIS, Settings.Secure.SEARCH_THREAD_KEEPALIVE_SECONDS, Settings.Secure.SEARCH_WEB_RESULTS_OVERRIDE_LIMIT, Settings.Secure.SELECTED_INPUT_METHOD_SUBTYPE, Settings.Secure.SETTINGS_CLASSNAME, Settings.Secure.SHOW_NOTE_ABOUT_NOTIFICATION_HIDING, // candidate? Settings.Secure.SKIP_FIRST_USE_HINTS, // candidate? Settings.Secure.SMS_DEFAULT_APPLICATION, Settings.Secure.TRUST_AGENTS_INITIALIZED, Settings.Secure.TV_INPUT_CUSTOM_LABELS, Settings.Secure.TV_INPUT_HIDDEN_INPUTS, Settings.Secure.UI_NIGHT_MODE, // candidate? Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, Settings.Secure.UNSAFE_VOLUME_MUSIC_ACTIVE_MS, Settings.Secure.USB_AUDIO_AUTOMATIC_ROUTING_DISABLED, Settings.Secure.USER_SETUP_COMPLETE, Settings.Secure.VOICE_INTERACTION_SERVICE, Settings.Secure.VOICE_RECOGNITION_SERVICE, Settings.Secure.INSTANT_APPS_ENABLED); @Test public void systemSettingsBackedUpOrBlacklisted() { checkSettingsBackedUpOrBlacklisted( getCandidateSettings(Settings.System.class), newHashSet(Settings.System.SETTINGS_TO_BACKUP), BACKUP_BLACKLISTED_SYSTEM_SETTINGS); } @Test public void globalSettingsBackedUpOrBlacklisted() { checkSettingsBackedUpOrBlacklisted( getCandidateSettings(Settings.Global.class), newHashSet(Settings.Global.SETTINGS_TO_BACKUP), BACKUP_BLACKLISTED_GLOBAL_SETTINGS); } @Test public void secureSettingsBackedUpOrBlacklisted() { checkSettingsBackedUpOrBlacklisted( getCandidateSettings(Settings.Secure.class), newHashSet(Settings.Secure.SETTINGS_TO_BACKUP), BACKUP_BLACKLISTED_SECURE_SETTINGS); } private static void checkSettingsBackedUpOrBlacklisted( Set settings, Set settingsToBackup, Set blacklist) { Set settingsNotBackedUp = difference(settings, settingsToBackup); Set settingsNotBackedUpOrBlacklisted = difference(settingsNotBackedUp, blacklist); assertThat( "Settings not backed up or blacklisted", settingsNotBackedUpOrBlacklisted, is(empty())); assertThat( "blacklisted settings backed up", intersect(settingsToBackup, blacklist), is(empty())); } private static Set getCandidateSettings(Class clazz) { HashSet result = new HashSet(); for (Field field : clazz.getDeclaredFields()) { if (looksLikeValidSetting(field)) { try { result.add((String) field.get(null)); } catch (IllegalAccessException e) { // Impossible for public fields throw new RuntimeException(e); } } } return result; } private static boolean looksLikeValidSetting(Field field) { int modifiers = field.getModifiers(); return isPublic(modifiers) && isStatic(modifiers) && isFinal(modifiers) && field.getType() == String.class && field.getAnnotation(Deprecated.class) == null; } private static Set difference(Set s1, Set s2) { HashSet result = new HashSet(s1); result.removeAll(s2); return result; } private static Set intersect(Set s1, Set s2) { HashSet result = new HashSet(s1); result.retainAll(s2); return result; } }