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/*
* Copyright (C) 2022, Tencent.
*
* 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.internal.storage.commitgraph;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import org.eclipse.jgit.internal.storage.commitgraph.CommitGraph.CommitData;
import org.eclipse.jgit.junit.JGitTestUtil;
import org.eclipse.jgit.lib.ObjectId;
import org.junit.Test;
/**
* Test CommitGraphLoader by reading the commit-graph file generated by Cgit.
*/
public class CommitGraphLoaderTest {
private CommitGraph commitGraph;
@Test
public void readCommitGraphV1() throws Exception {
commitGraph = CommitGraphLoader
.open(JGitTestUtil.getTestResourceFile("commit-graph.v1"));
assertNotNull(commitGraph);
assertEquals(10, commitGraph.getCommitCnt());
verifyGraphObjectIndex();
assertCommitData("85b0176af27fa1640868f061f224d01e0b295f59",
new int[] { 5, 6 }, 1670570408L, 3, 0);
assertCommitData("d4f7c00aab3f0160168c9e5991abb6194a4e0d9e",
new int[] {}, 1670569901L, 1, 1);
assertCommitData("4d03aaf9c20c97d6ccdc05cb7f146b1deb6c01d5",
new int[] { 5 }, 1670570119L, 3, 2);
assertCommitData("a2f409b753880bf83b18bfb433dd340a6185e8be",
new int[] { 7 }, 1670569935L, 3, 3);
assertCommitData("431343847343979bbe31127ed905a24fed9a636c",
new int[] { 3, 2, 8 }, 1670570644L, 4, 4);
assertCommitData("c3f745ad8928ef56b5dbf33740fc8ede6b598290",
new int[] { 1 }, 1670570106L, 2, 5);
assertCommitData("95b12422c8ea4371e54cd58925eeed9d960ff1f0",
new int[] { 1 }, 1670570163L, 2, 6);
assertCommitData("de0ea882503cdd9c984c0a43238014569a123cac",
new int[] { 1 }, 1670569921L, 2, 7);
assertCommitData("102c9d6481559b1a113eb66bf55085903de6fb00",
new int[] { 6 }, 1670570616L, 3, 8);
assertCommitData("b5de2a84867f8ffc6321649dabf8c0680661ec03",
new int[] { 7, 5 }, 1670570364L, 3, 9);
}
private void verifyGraphObjectIndex() {
for (int i = 0; i < commitGraph.getCommitCnt(); i++) {
ObjectId id = commitGraph.getObjectId(i);
int pos = commitGraph.findGraphPosition(id);
assertEquals(i, pos);
}
}
private void assertCommitData(String expectedTree, int[] expectedParents,
long expectedCommitTime, int expectedGeneration, int graphPos) {
CommitData commitData = commitGraph.getCommitData(graphPos);
assertEquals(ObjectId.fromString(expectedTree), commitData.getTree());
assertArrayEquals(expectedParents, commitData.getParents());
assertEquals(expectedCommitTime, commitData.getCommitTime());
assertEquals(expectedGeneration, commitData.getGeneration());
}
}
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