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/*
* Copyright (C) 2010-2012 Christian Halstrick <christian.halstrick@sap.com> 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.lib;
import static java.nio.charset.StandardCharsets.UTF_8;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import org.eclipse.jgit.junit.RepositoryTestCase;
import org.junit.Test;
public class MergeHeadMsgTest extends RepositoryTestCase {
private static final String mergeMsg = "merge a and b";
private static final String sampleId = "1c6db447abdbb291b25f07be38ea0b1bf94947c5";
@Test
public void testReadWriteMergeHeads() throws IOException {
assertEquals(db.readMergeHeads(), null);
db.writeMergeHeads(Arrays.asList(ObjectId.zeroId(),
ObjectId.fromString(sampleId)));
assertEquals(read(new File(db.getDirectory(), "MERGE_HEAD")), "0000000000000000000000000000000000000000\n1c6db447abdbb291b25f07be38ea0b1bf94947c5\n");
assertEquals(db.readMergeHeads().size(), 2);
assertEquals(db.readMergeHeads().get(0), ObjectId.zeroId());
assertEquals(db.readMergeHeads().get(1), ObjectId.fromString(sampleId));
// same test again, this time with lower-level io
try (FileOutputStream fos = new FileOutputStream(
new File(db.getDirectory(), "MERGE_HEAD"));) {
fos.write(
"0000000000000000000000000000000000000000\n1c6db447abdbb291b25f07be38ea0b1bf94947c5\n"
.getBytes(UTF_8));
}
assertEquals(db.readMergeHeads().size(), 2);
assertEquals(db.readMergeHeads().get(0), ObjectId.zeroId());
assertEquals(db.readMergeHeads().get(1), ObjectId.fromString(sampleId));
db.writeMergeHeads(Collections.<ObjectId> emptyList());
assertEquals(read(new File(db.getDirectory(), "MERGE_HEAD")), "");
assertEquals(db.readMergeHeads(), null);
try (FileOutputStream fos = new FileOutputStream(
new File(db.getDirectory(), "MERGE_HEAD"))) {
fos.write(sampleId.getBytes(UTF_8));
}
assertEquals(db.readMergeHeads().size(), 1);
assertEquals(db.readMergeHeads().get(0), ObjectId.fromString(sampleId));
}
@Test
public void testReadWriteMergeMsg() throws IOException {
assertEquals(db.readMergeCommitMsg(), null);
assertFalse(new File(db.getDirectory(), "MERGE_MSG").exists());
db.writeMergeCommitMsg(mergeMsg);
assertEquals(db.readMergeCommitMsg(), mergeMsg);
assertEquals(read(new File(db.getDirectory(), "MERGE_MSG")), mergeMsg);
db.writeMergeCommitMsg(null);
assertEquals(db.readMergeCommitMsg(), null);
assertFalse(new File(db.getDirectory(), "MERGE_MSG").exists());
try (FileOutputStream fos = new FileOutputStream(
new File(db.getDirectory(), Constants.MERGE_MSG))) {
fos.write(mergeMsg.getBytes(UTF_8));
}
assertEquals(db.readMergeCommitMsg(), mergeMsg);
}
}
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