SystemPropertiesTest.java revision c91437d38ae14a20046de47831eb0f9bfd329af7 
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
17package android.os;
18
19import junit.framework.TestCase;
20
21import android.os.SystemProperties;
22import android.test.suitebuilder.annotation.SmallTest;
23
24public class SystemPropertiesTest extends TestCase {
25    private static final String KEY = "sys.testkey";
26    @SmallTest
27    public void testLongSequencialProperties() throws Exception {
28        for (int i = 0; i < 100; ++i) {
29            SystemProperties.set(KEY, Long.toString(i));
30            long ret = SystemProperties.getLong(KEY, -1);
31            assertEquals(i, ret);
32        }
33    }
34
35    @SmallTest
36    public void testProperties() throws Exception {
37        String value;
38
39        SystemProperties.set(KEY, "");
40        value = SystemProperties.get(KEY, "default");
41        assertEquals("default", value);
42
43        SystemProperties.set(KEY, "SA");
44        value = SystemProperties.get(KEY, "default");
45        assertEquals("SA", value);
46
47        value = SystemProperties.get(KEY);
48        assertEquals("SA", value);
49
50        SystemProperties.set(KEY, "");
51        value = SystemProperties.get(KEY, "default");
52        assertEquals("default", value);
53
54        value = SystemProperties.get(KEY);
55        assertEquals("", value);
56    }
57}
58