1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.os; 18 19 import junit.framework.TestCase; 20 21 import android.os.SystemProperties; 22 import android.test.suitebuilder.annotation.SmallTest; 23 24 public class SystemPropertiesTest extends TestCase { 25 private static final String KEY = "sys.testkey"; 26 private static final String PERSIST_KEY = "persist.sys.testkey"; 27 28 @SmallTest 29 public void testStressPersistPropertyConsistency() throws Exception { 30 for (int i = 0; i < 100; ++i) { 31 SystemProperties.set(PERSIST_KEY, Long.toString(i)); 32 long ret = SystemProperties.getLong(PERSIST_KEY, -1); 33 assertEquals(i, ret); 34 } 35 } 36 37 @SmallTest 38 public void testStressMemoryPropertyConsistency() throws Exception { 39 for (int i = 0; i < 100; ++i) { 40 SystemProperties.set(KEY, Long.toString(i)); 41 long ret = SystemProperties.getLong(KEY, -1); 42 assertEquals(i, ret); 43 } 44 } 45 46 @SmallTest 47 public void testProperties() throws Exception { 48 String value; 49 50 SystemProperties.set(KEY, ""); 51 value = SystemProperties.get(KEY, "default"); 52 assertEquals("default", value); 53 54 SystemProperties.set(KEY, "SA"); 55 value = SystemProperties.get(KEY, "default"); 56 assertEquals("SA", value); 57 58 value = SystemProperties.get(KEY); 59 assertEquals("SA", value); 60 61 SystemProperties.set(KEY, ""); 62 value = SystemProperties.get(KEY, "default"); 63 assertEquals("default", value); 64 65 value = SystemProperties.get(KEY); 66 assertEquals("", value); 67 } 68 } 69
