1 /**
2 * Copyright (c) 2013-2023, jcabi.com
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met: 1) Redistributions of source code must retain the above
8 * copyright notice, this list of conditions and the following
9 * disclaimer. 2) Redistributions in binary form must reproduce the above
10 * copyright notice, this list of conditions and the following
11 * disclaimer in the documentation and/or other materials provided
12 * with the distribution. 3) Neither the name of the jcabi.com nor
13 * the names of its contributors may be used to endorse or promote
14 * products derived from this software without specific prior written
15 * permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
19 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
28 * OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30 package com.jcabi.github.mock;
31
32 import java.util.concurrent.ExecutorService;
33 import java.util.concurrent.Executors;
34 import java.util.concurrent.Future;
35 import java.util.concurrent.TimeUnit;
36 import java.util.concurrent.TimeoutException;
37 import org.hamcrest.MatcherAssert;
38 import org.hamcrest.Matchers;
39 import org.junit.Test;
40 import org.xembly.Directives;
41
42 /**
43 * Test case for {@link MkStorage}.
44 * @author Yegor Bugayenko (yegor256@gmail.com)
45 * @version $Id: 68af2fcec4e7af74a427af60ba2f9a2d299ce841 $
46 * @checkstyle MultipleStringLiteralsCheck (200 lines)
47 */
48 @SuppressWarnings("PMD.DoNotUseThreads")
49 public final class MkStorageTest {
50
51 /**
52 * MkStorage can text and write.
53 * @throws Exception If some problem inside
54 */
55 @Test
56 public void readsAndWrites() throws Exception {
57 final MkStorage storage = new MkStorage.InFile();
58 storage.lock();
59 try {
60 storage.apply(
61 new Directives().xpath("/github").add("test")
62 .set("hello, world")
63 );
64 MatcherAssert.assertThat(
65 storage.xml().xpath("/github/test/text()").get(0),
66 Matchers.endsWith(", world")
67 );
68 } finally {
69 storage.unlock();
70 }
71 }
72
73 /**
74 * MkStorage can lock and unlock files.
75 * @throws Exception If some problem inside
76 */
77 @Test
78 public void locksAndUnlocks() throws Exception {
79 final MkStorage storage = new MkStorage.Synced(new MkStorage.InFile());
80 final ExecutorService executor = Executors.newSingleThreadExecutor();
81 final Runnable second = () -> storage.lock();
82 storage.lock();
83 Future<?> future = executor.submit(second);
84 try {
85 future.get(1L, TimeUnit.SECONDS);
86 MatcherAssert.assertThat("timeout SHOULD happen", false);
87 } catch (final TimeoutException ex) {
88 future.cancel(true);
89 } finally {
90 storage.unlock();
91 }
92 future = executor.submit(second);
93 try {
94 future.get(1L, TimeUnit.SECONDS);
95 } catch (final TimeoutException ex) {
96 MatcherAssert.assertThat("timeout SHOULD NOT happen", false);
97 future.cancel(true);
98 }
99 executor.shutdown();
100 }
101
102 }