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/*
* Copyright (C) 2011, Robin Stocker <robin@nibor.org> 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.revwalk;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
public class RevWalkUtilsCountTest extends RevWalkTestCase {
@Test
public void shouldWorkForNormalCase() throws Exception {
final RevCommit a = commit();
final RevCommit b = commit(a);
assertEquals(1, count(b, a));
}
@Test
public void shouldReturnZeroOnSameCommit() throws Exception {
final RevCommit c1 = commit(commit(commit()));
assertEquals(0, count(c1, c1));
}
@Test
public void shouldReturnZeroWhenMergedInto() throws Exception {
final RevCommit a = commit();
final RevCommit b = commit(a);
assertEquals(0, count(a, b));
}
@Test
public void shouldWorkWithMerges() throws Exception {
final RevCommit a = commit();
final RevCommit b1 = commit(a);
final RevCommit b2 = commit(a);
final RevCommit c = commit(b1, b2);
assertEquals(3, count(c, a));
}
@Test
public void shouldWorkWithoutCommonAncestor() throws Exception {
final RevCommit a1 = commit();
final RevCommit a2 = commit();
final RevCommit b = commit(a1);
assertEquals(2, count(b, a2));
}
@Test
public void shouldWorkWithZeroAsEnd() throws Exception {
final RevCommit c = commit(commit());
assertEquals(2, count(c, null));
}
private int count(RevCommit start, RevCommit end) throws Exception {
return RevWalkUtils.count(rw, start, end);
}
}
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