| /* 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."); |
| } |
| } |
| } |
| } |