1/*
2 * Copyright (C) 2016 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.documentsui;
18
19import static org.junit.Assert.assertFalse;
20import static org.junit.Assert.assertTrue;
21
22import android.support.test.filters.SmallTest;
23import android.support.test.runner.AndroidJUnit4;
24
25import org.junit.Before;
26import org.junit.Test;
27import org.junit.runner.RunWith;
28
29@RunWith(AndroidJUnit4.class)
30@SmallTest
31public class DirectoryReloadLockTest {
32
33    private DirectoryReloadLock lock = new DirectoryReloadLock();
34    private boolean called;
35    private Runnable callback = () -> {
36        called = true;
37    };
38
39    @Before
40    public void setUp() {
41        called = false;
42    }
43
44    @Test
45    public void testNotBlocking_callbackNotBlocked() {
46        lock.tryUpdate(callback);
47        assertTrue(called);
48    }
49
50    @Test
51    public void testToggleBlocking_callbackNotBlocked() {
52        lock.block();
53        lock.unblock();
54        lock.tryUpdate(callback);
55        assertTrue(called);
56    }
57
58    @Test
59    public void testBlocking_callbackBlocked() {
60        lock.block();
61        lock.tryUpdate(callback);
62        assertFalse(called);
63    }
64
65    @Test
66    public void testBlockthenUnblock_callbackNotBlocked() {
67        lock.block();
68        lock.tryUpdate(callback);
69        lock.unblock();
70        assertTrue(called);
71    }
72}
73