1/*
2 * Copyright (C) 2012 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 com.android.internal.os;
18
19import android.os.Debug;
20
21import android.test.suitebuilder.annotation.SmallTest;
22import junit.framework.TestCase;
23
24@SmallTest
25public class DebugTest extends TestCase {
26
27    private final static String EXPECTED_GET_CALLER =
28            "com\\.android\\.internal\\.os\\.DebugTest\\.testGetCaller:\\d\\d";
29    private final static String EXPECTED_GET_CALLERS =
30            "com\\.android\\.internal\\.os\\.DebugTest.callDepth3:\\d\\d " +
31            "com\\.android\\.internal\\.os\\.DebugTest.callDepth2:\\d\\d " +
32            "com\\.android\\.internal\\.os\\.DebugTest.callDepth1:\\d\\d ";
33
34    /**
35     * @return String consisting of the caller to this method.
36     */
37    private String callDepth0() {
38        return Debug.getCaller();
39    }
40
41    public void testGetCaller() {
42        assertTrue(callDepth0().matches(EXPECTED_GET_CALLER));
43    }
44
45    /**
46     * @return String consisting of the callers to this method.
47     */
48    private String callDepth4() {
49        return Debug.getCallers(3);
50    }
51
52    private String callDepth3() {
53        return callDepth4();
54    }
55
56    private String callDepth2() {
57        return callDepth3();
58    }
59
60    private String callDepth1() {
61        return callDepth2();
62    }
63
64    public void testGetCallers() {
65        assertTrue(callDepth1().matches(EXPECTED_GET_CALLERS));
66    }
67}
68