1 /*
2 * Copyright (C) 2018, Google LLC.
3 * and other copyright owners as documented in the project's IP log.
4 *
5 * This program and the accompanying materials are made available
6 * under the terms of the Eclipse Distribution License v1.0 which
7 * accompanies this distribution, is reproduced below, and is
8 * available at http://www.eclipse.org/org/documents/edl-v10.php
9 *
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials provided
22 * with the distribution.
23 *
24 * - Neither the name of the Eclipse Foundation, Inc. nor the
25 * names of its contributors may be used to endorse or promote
26 * products derived from this software without specific prior
27 * written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 */
43 package org.eclipse.jgit.transport;
44
45 import java.util.Collection;
46 import java.util.Set;
47 import java.util.stream.Collectors;
48
49 import org.eclipse.jgit.lib.ObjectId;
50 import org.eclipse.jgit.lib.Sets;
51 import org.hamcrest.Description;
52 import org.hamcrest.Factory;
53 import org.hamcrest.Matcher;
54 import org.hamcrest.TypeSafeMatcher;
55
56 /**
57 * Multiple tests check that a collection of ObjectIds contain certain SHA1
58 * (written as strings). This matcher hides the ObjectId to string conversion to
59 * make the assertion more readable:
60 *
61 * assertThat(req.getWantsIds(), hasOnlyObjectIds("123123", "234234"));
62 */
63 class ObjectIdMatcher extends TypeSafeMatcher<Collection<ObjectId>> {
64
65 private final Set<ObjectId> expectedOids;
66
67 private ObjectIdMatcher(Set<String> oids) {
68 this.expectedOids = oids.stream().map(ObjectId::fromString)
69 .collect(Collectors.toSet());
70 }
71
72 @Override
73 public void describeTo(Description desc) {
74 desc.appendText("Object ids:");
75 desc.appendValueList("<", ",", ">", expectedOids);
76 }
77
78 @Override
79 protected boolean matchesSafely(Collection<ObjectId> resultOids) {
80 return resultOids.containsAll(expectedOids)
81 && expectedOids.containsAll(resultOids);
82 }
83
84 /**
85 * Assert that all and only the received {@link ObjectId object ids} are in
86 * the expected set.
87 * <p>
88 * ObjectIds are compared by SHA1.
89 *
90 * @param oids
91 * Object ids to examine.
92 * @return true if examined and specified sets contains exactly the same
93 * elements.
94 */
95 @Factory
96 static Matcher<Collection<ObjectId>> hasOnlyObjectIds(
97 String... oids) {
98 return new ObjectIdMatcher(Sets.of(oids));
99 }
100 }