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/*
* Copyright (C) 2018, Google LLC. and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.transport;
import java.util.Collection;
import java.util.Set;
import java.util.stream.Collectors;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Sets;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.hamcrest.TypeSafeMatcher;
/**
* Multiple tests check that a collection of ObjectIds contain certain SHA1
* (written as strings). This matcher hides the ObjectId to string conversion to
* make the assertion more readable:
*
* assertThat(req.getWantsIds(), hasOnlyObjectIds("123123", "234234"));
*/
class ObjectIdMatcher extends TypeSafeMatcher<Collection<ObjectId>> {
private final Set<ObjectId> expectedOids;
private ObjectIdMatcher(Set<String> oids) {
this.expectedOids = oids.stream().map(ObjectId::fromString)
.collect(Collectors.toSet());
}
@Override
public void describeTo(Description desc) {
desc.appendText("Object ids:");
desc.appendValueList("<", ",", ">", expectedOids);
}
@Override
protected boolean matchesSafely(Collection<ObjectId> resultOids) {
return resultOids.containsAll(expectedOids)
&& expectedOids.containsAll(resultOids);
}
/**
* Assert that all and only the received {@link ObjectId object ids} are in
* the expected set.
* <p>
* ObjectIds are compared by SHA1.
*
* @param oids
* Object ids to examine.
* @return true if examined and specified sets contains exactly the same
* elements.
*/
static Matcher<Collection<ObjectId>> hasOnlyObjectIds(
String... oids) {
return new ObjectIdMatcher(Sets.of(oids));
}
}
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