ActivityStackSupervisorTests.java revision 18498714fe22c62de461179aba3f08195db17e5f 
1/*
2 * Copyright (C) 2017 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.server.am;
18
19import static org.junit.Assert.assertNull;
20
21import android.platform.test.annotations.Presubmit;
22import android.support.test.filters.MediumTest;
23import android.support.test.runner.AndroidJUnit4;
24
25import org.junit.runner.RunWith;
26import org.junit.Test;
27
28import static com.android.server.am.ActivityStackSupervisor.MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE;
29
30/**
31 * Tests for the {@link ActivityStackSupervisor} class.
32 *
33 * Build/Install/Run:
34 *  bit FrameworksServicesTests:com.android.server.am.ActivityStackSupervisorTests
35 */
36@MediumTest
37@Presubmit
38@RunWith(AndroidJUnit4.class)
39public class ActivityStackSupervisorTests extends ActivityTestsBase {
40    /**
41     * This test ensures that we do not try to restore a task based off an invalid task id. The
42     * stack supervisor is a test version so there will be no tasks present. We should expect
43     * {@code null} to be returned in this case.
44     */
45    @Test
46    public void testRestoringInvalidTask() throws Exception {
47        final ActivityManagerService service = createActivityManagerService();
48        TaskRecord task = service.mStackSupervisor.anyTaskForIdLocked(0 /*taskId*/,
49                MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE, 0 /*stackId*/);
50        assertNull(task);
51    }
52}
53