1 /**
2 * Copyright (c) 2013-2022, 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.io.IOException;
33 import java.util.concurrent.ExecutorService;
34 import java.util.concurrent.Executors;
35 import java.util.concurrent.Future;
36 import java.util.concurrent.TimeUnit;
37 import java.util.concurrent.TimeoutException;
38 import org.hamcrest.MatcherAssert;
39 import org.hamcrest.Matchers;
40 import org.junit.Test;
41 import org.xembly.Directives;
42
43 /**
44 * Test case for {@link MkStorage}.
45 * @author Yegor Bugayenko (yegor256@gmail.com)
46 * @version $Id: b0a83e3eb3f9ffb7e61948eeaa3941966c230be1 $
47 * @checkstyle MultipleStringLiteralsCheck (200 lines)
48 */
49 @SuppressWarnings("PMD.DoNotUseThreads")
50 public final class MkStorageTest {
51
52 /**
53 * MkStorage can text and write.
54 * @throws Exception If some problem inside
55 */
56 @Test
57 public void readsAndWrites() throws Exception {
58 final MkStorage storage = new MkStorage.InFile();
59 storage.lock();
60 try {
61 storage.apply(
62 new Directives().xpath("/github").add("test")
63 .set("hello, world")
64 );
65 MatcherAssert.assertThat(
66 storage.xml().xpath("/github/test/text()").get(0),
67 Matchers.endsWith(", world")
68 );
69 } finally {
70 storage.unlock();
71 }
72 }
73
74 /**
75 * MkStorage can lock and unlock files.
76 * @throws Exception If some problem inside
77 */
78 @Test
79 public void locksAndUnlocks() throws Exception {
80 final MkStorage storage = new MkStorage.Synced(new MkStorage.InFile());
81 final ExecutorService executor = Executors.newSingleThreadExecutor();
82 final Runnable second = new Runnable() {
83 @Override
84 public void run() {
85 try {
86 storage.lock();
87 } catch (final IOException ex) {
88 throw new IllegalStateException(ex);
89 }
90 }
91 };
92 storage.lock();
93 Future<?> future = executor.submit(second);
94 try {
95 future.get(1L, TimeUnit.SECONDS);
96 MatcherAssert.assertThat("timeout SHOULD happen", false);
97 } catch (final TimeoutException ex) {
98 future.cancel(true);
99 } finally {
100 storage.unlock();
101 }
102 future = executor.submit(second);
103 try {
104 future.get(1L, TimeUnit.SECONDS);
105 } catch (final TimeoutException ex) {
106 MatcherAssert.assertThat("timeout SHOULD NOT happen", false);
107 future.cancel(true);
108 }
109 executor.shutdown();
110 }
111
112 }