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/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.util.prefs.Preferences;
import junit.framework.TestCase;
public final class OldFilePreferencesImplTest extends TestCase {
// AndroidOnly: the RI can't remove nodes created in the system root.
public void testSystemChildNodes() throws Exception {
Preferences sroot = Preferences.systemRoot().node("test");
Preferences child1 = sroot.node("child1");
Preferences child2 = sroot.node("child2");
Preferences grandchild = child1.node("grand");
String[] childNames = sroot.childrenNames();
assertContains(childNames, "child1");
assertContains(childNames, "child2");
assertNotContains(childNames, "grand");
childNames = child1.childrenNames();
assertEquals(1, childNames.length);
childNames = child2.childrenNames();
assertEquals(0, childNames.length);
child1.removeNode();
childNames = sroot.childrenNames();
assertNotContains(childNames, "child1");
assertContains(childNames, "child2");
assertNotContains(childNames, "grand");
child2.removeNode();
childNames = sroot.childrenNames();
assertNotContains(childNames, "child1");
assertNotContains(childNames, "child2");
assertNotContains(childNames, "grand");
sroot.removeNode();
}
private void assertContains(String[] childNames, String name) {
for (String childName : childNames) {
if (childName == name) {
return;
}
}
fail("No child with name " + name + " was found. It was expected to exist.");
}
private void assertNotContains(String[] childNames, String name) {
for (String childName : childNames) {
if (childName == name) {
fail("Child with name " + name + " was found. This was unexpected.");
}
}
}
}
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