src/main/java/com/xtremelabs/robolectric/shadows/ShadowSettings.java

package com.xtremelabs.robolectric.shadows;

import android.content.ContentResolver;
import android.provider.Settings;
import com.xtremelabs.robolectric.Robolectric;
import com.xtremelabs.robolectric.internal.Implementation;
import com.xtremelabs.robolectric.internal.Implements;

import java.util.HashMap;
import java.util.Map;
import java.util.WeakHashMap;

/**
 * Shadow of {@code Settings} that allows the status of various System and Secure settings to be simulated, changed and
 * queried.
 */
@SuppressWarnings({"UnusedDeclaration"})
@Implements(Settings.class)
public class ShadowSettings {
    @Implements(Settings.class)
    private static class SettingsImpl {
        private static final WeakHashMap<ContentResolver, Map<String, Object>> dataMap = new WeakHashMap<ContentResolver, Map<String, Object>>();

        @Implementation
        public static boolean putInt(ContentResolver cr, String name, int value) {
            get(cr).put(name, value);
            return true;
        }

        @Implementation
        public static int getInt(ContentResolver cr, String name, int def) {
            if (get(cr).get(name) instanceof Integer) {
                return (Integer) get(cr).get(name);
            } else {
                return def;
            }
        }

        @Implementation
        public static int getInt(ContentResolver cr, String name) throws Settings.SettingNotFoundException {
            if (get(cr).get(name) instanceof Integer) {
                return (Integer) get(cr).get(name);
            } else {
                throw new Settings.SettingNotFoundException(name);
            }
        }

        @Implementation
        public static boolean putString(ContentResolver cr, String name, String value) {
            get(cr).put(name, value);
            return true;
        }

        @Implementation
        public static String getString(ContentResolver cr, String name) {
            if (get(cr).get(name) instanceof String) {
                return (String) get(cr).get(name);
            } else {
                return null;
            }
        }

        @Implementation
        public static boolean putLong(ContentResolver cr, String name, long value) {
            get(cr).put(name, value);
            return true;
        }

        @Implementation
        public static long getLong(ContentResolver cr, String name, long def) {
            if (get(cr).get(name) instanceof Long) {
                return (Long) get(cr).get(name);
            } else {
                return def;
            }
        }

        @Implementation
        public static long getLong(ContentResolver cr, String name) throws Settings.SettingNotFoundException {
            if (get(cr).get(name) instanceof Long) {
                return (Long) get(cr).get(name);
            } else {
                throw new Settings.SettingNotFoundException(name);
            }
        }

        @Implementation
        public static boolean putFloat(ContentResolver cr, String name, float value) {
            get(cr).put(name, value);
            return true;
        }

        @Implementation
        public static float getFloat(ContentResolver cr, String name, float def) {
            if (get(cr).get(name) instanceof Float) {
                return (Float) get(cr).get(name);
            } else {
                return def;
            }
        }

        @Implementation
        public static float getFloat(ContentResolver cr, String name) throws Settings.SettingNotFoundException {
            if (get(cr).get(name) instanceof Float) {
                return (Float) get(cr).get(name);
            } else {
                throw new Settings.SettingNotFoundException(name);
            }
        }

        @Implementation
        private static Map<String, Object> get(ContentResolver cr) {
            Map<String, Object> map = dataMap.get(cr);
            if (map == null) {
                map = new HashMap<String, Object>();
                dataMap.put(cr, map);
            }
            return map;
        }
    }

    @Implements(Settings.System.class)
    public static class ShadowSystem extends SettingsImpl {
    }

    @Implements(Settings.Secure.class)
    public static class ShadowSecure extends SettingsImpl {
    }

    @Implements(Settings.Global.class)
    public static class ShadowGlobal extends SettingsImpl {
    }

    /**
     * Non-Android accessor that allows the value of the AIRPLANE_MODE_ON setting to be set.
     *
     * @param isAirplaneMode new status for airplane mode
     */
    public static void setAirplaneMode(boolean isAirplaneMode) {
        Settings.System.putInt(Robolectric.application.getContentResolver(), Settings.System.AIRPLANE_MODE_ON, isAirplaneMode ? 1 : 0);
    }

    /**
     * Non-Android accessor that allows the value of the WIFI_ON setting to be set.
     *
     * @param isOn new status for wifi mode
     */
    public static void setWifiOn(boolean isOn) {
        Settings.Secure.putInt(Robolectric.application.getContentResolver(), Settings.Secure.WIFI_ON, isOn ? 1 : 0);
    }

    /**
     * Non-Android accessor thatallows the value of the TIME_12_24 setting to be set.
     *
     * @param use24HourTimeFormat new status for the time setting
     */
    public static void set24HourTimeFormat(boolean use24HourTimeFormat) {
        Settings.System.putInt(Robolectric.application.getContentResolver(), Settings.System.TIME_12_24, use24HourTimeFormat ? 24 : 12);
    }
}