/*
* Copyright (C) 2011 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 libcore.java.util.prefs;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileWriter;
import java.util.prefs.Preferences;
import junit.framework.TestCase;
public final class PreferencesTest extends TestCase {
/**
* The preferences API is designed to be hostile towards files that exist
* where it wants to store its XML data. http://b/3431233
*/
public void testPreferencesClobbersExistingFiles() throws Exception {
File userPrefs = new File(System.getProperty("user.home") + "/.java/.userPrefs/prefs.xml");
FileWriter writer = new FileWriter(userPrefs);
writer.write("lamb");
writer.close();
userPrefs.setReadable(false);
userPrefs.setWritable(false);
long oldLength = userPrefs.length();
Preferences userPreferences = Preferences.userRoot();
userPreferences.sync();
userPreferences.put("a", "lion");
userPreferences.flush();
assertTrue("Expected to exist " + userPrefs, userPrefs.exists());
assertTrue("Expected file to be clobbered", oldLength != userPrefs.length());
}
public void testHtmlEncoding() throws Exception {
Preferences parent = Preferences.userNodeForPackage(this.getClass());
Preferences p = parent.node("testHtmlEncoding");
p.put("key", "a<>&'\"\\b");
p.flush();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
p.exportNode(baos);
String s = new String(baos.toByteArray(), "UTF-8");
assertTrue(s, s.contains("value=\"a<>&'"\\b\""));
}
}