/*
* Copyright (C) 2015 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 com.android.providers.settings;
import android.os.Looper;
import android.test.AndroidTestCase;
import android.util.Xml;
import org.xmlpull.v1.XmlSerializer;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.nio.charset.StandardCharsets;
public class SettingsStateTest extends AndroidTestCase {
public static final String CRAZY_STRING =
"\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\u0008\u0009\n\u000b\u000c\r" +
"\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a" +
"\u001b\u001c\u001d\u001e\u001f\u0020" +
"fake_setting_value_1" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"\u1000 \u2000 \u5000 \u8000 \uc000 \ue000" +
"\ud800\udc00\udbff\udfff" + // surrogate pairs
"\uD800ab\uDC00 " + // broken surrogate pairs
"日本語";
public void testIsBinary() {
assertFalse(SettingsState.isBinary(" abc 日本語"));
for (char ch = 0x20; ch < 0xd800; ch++) {
assertFalse("ch=" + Integer.toString(ch, 16),
SettingsState.isBinary(String.valueOf(ch)));
}
for (char ch = 0xe000; ch < 0xfffe; ch++) {
assertFalse("ch=" + Integer.toString(ch, 16),
SettingsState.isBinary(String.valueOf(ch)));
}
for (char ch = 0x0000; ch < 0x20; ch++) {
assertTrue("ch=" + Integer.toString(ch, 16),
SettingsState.isBinary(String.valueOf(ch)));
}
for (char ch = 0xd800; ch < 0xe000; ch++) {
assertTrue("ch=" + Integer.toString(ch, 16),
SettingsState.isBinary(String.valueOf(ch)));
}
assertTrue(SettingsState.isBinary("\ufffe"));
assertTrue(SettingsState.isBinary("\uffff"));
try {
assertFalse(SettingsState.isBinary(null));
fail("NullPointerException expected");
} catch (NullPointerException expected) {
}
}
/** Make sure we won't pass invalid characters to XML serializer. */
public void testWriteReadNoCrash() throws Exception {
ByteArrayOutputStream os = new ByteArrayOutputStream();
XmlSerializer serializer = Xml.newSerializer();
serializer.setOutput(os, StandardCharsets.UTF_8.name());
serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true);
serializer.startDocument(null, true);
for (int ch = 0; ch < 0x10000; ch++) {
checkWriteSingleSetting("char=0x" + Integer.toString(ch, 16), serializer,
"key", String.valueOf((char) ch));
}
checkWriteSingleSetting(serializer, "k", "");
checkWriteSingleSetting(serializer, "x", "abc");
checkWriteSingleSetting(serializer, "abc", CRAZY_STRING);
checkWriteSingleSetting(serializer, "def", null);
// Invlid input, but shouoldn't crash.
checkWriteSingleSetting(serializer, null, null);
checkWriteSingleSetting(serializer, CRAZY_STRING, null);
SettingsState.writeSingleSetting(
SettingsState.SETTINGS_VERSION_NEW_ENCODING,
serializer, null, "k", "v", "package");
SettingsState.writeSingleSetting(
SettingsState.SETTINGS_VERSION_NEW_ENCODING,
serializer, "1", "k", "v", null);
}
private void checkWriteSingleSetting(XmlSerializer serializer, String key, String value)
throws Exception {
checkWriteSingleSetting(key + "/" + value, serializer, key, value);
}
private void checkWriteSingleSetting(String msg, XmlSerializer serializer,
String key, String value) throws Exception {
// Make sure the XML serializer won't crash.
SettingsState.writeSingleSetting(
SettingsState.SETTINGS_VERSION_NEW_ENCODING,
serializer, "1", key, value, "package");
}
/**
* Make sure settings can be written to a file and also can be read.
*/
public void testReadWrite() {
final File file = new File(getContext().getCacheDir(), "setting.xml");
file.delete();
final Object lock = new Object();
final SettingsState ssWriter = new SettingsState(lock, file, 1,
SettingsState.MAX_BYTES_PER_APP_PACKAGE_UNLIMITED, Looper.getMainLooper());
ssWriter.setVersionLocked(SettingsState.SETTINGS_VERSION_NEW_ENCODING);
ssWriter.insertSettingLocked("k1", "\u0000", "package");
ssWriter.insertSettingLocked("k2", "abc", "p2");
ssWriter.insertSettingLocked("k3", null, "p2");
ssWriter.insertSettingLocked("k4", CRAZY_STRING, "p3");
synchronized (lock) {
ssWriter.persistSyncLocked();
}
final SettingsState ssReader = new SettingsState(lock, file, 1,
SettingsState.MAX_BYTES_PER_APP_PACKAGE_UNLIMITED, Looper.getMainLooper());
synchronized (lock) {
assertEquals("\u0000", ssReader.getSettingLocked("k1").getValue());
assertEquals("abc", ssReader.getSettingLocked("k2").getValue());
assertEquals(null, ssReader.getSettingLocked("k3").getValue());
assertEquals(CRAZY_STRING, ssReader.getSettingLocked("k4").getValue());
}
}
/**
* In version 120, value "null" meant {code NULL}.
*/
public void testUpgrade() throws Exception {
final File file = new File(getContext().getCacheDir(), "setting.xml");
file.delete();
final Object lock = new Object();
final PrintStream os = new PrintStream(new FileOutputStream(file));
os.print(
"<?xml version='1.0' encoding='UTF-8' standalone='yes' ?>" +
"<settings version=\"120\">" +
" <setting id=\"0\" name=\"k0\" value=\"null\" package=\"null\" />" +
" <setting id=\"1\" name=\"k1\" value=\"\" package=\"\" />" +
" <setting id=\"2\" name=\"k2\" value=\"v2\" package=\"p2\" />" +
"</settings>");
os.close();
final SettingsState ss = new SettingsState(lock, file, 1,
SettingsState.MAX_BYTES_PER_APP_PACKAGE_UNLIMITED, Looper.getMainLooper());
synchronized (lock) {
SettingsState.Setting s;
s = ss.getSettingLocked("k0");
assertEquals(null, s.getValue());
assertEquals("null", s.getPackageName());
s = ss.getSettingLocked("k1");
assertEquals("", s.getValue());
assertEquals("", s.getPackageName());
s = ss.getSettingLocked("k2");
assertEquals("v2", s.getValue());
assertEquals("p2", s.getPackageName());
}
}
}