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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.assertEquals;
import static org.junit.Assert.assertThrows;
import org.junit.Test;
public class CommitGraphBuilderTest {
@Test
public void testRepeatedChunk() throws Exception {
byte[] buffer = new byte[2048];
CommitGraphBuilder builder1 = CommitGraphBuilder.builder();
builder1.addOidFanout(buffer);
Exception e1 = assertThrows(CommitGraphFormatException.class, () -> {
builder1.addOidFanout(buffer);
});
assertEquals("commit-graph chunk id 0x4f494446 appears multiple times",
e1.getMessage());
CommitGraphBuilder builder2 = CommitGraphBuilder.builder();
builder2.addOidLookUp(buffer);
Exception e2 = assertThrows(CommitGraphFormatException.class, () -> {
builder2.addOidLookUp(buffer);
});
assertEquals("commit-graph chunk id 0x4f49444c appears multiple times",
e2.getMessage());
CommitGraphBuilder builder3 = CommitGraphBuilder.builder();
builder3.addCommitData(buffer);
Exception e3 = assertThrows(CommitGraphFormatException.class, () -> {
builder3.addCommitData(buffer);
});
assertEquals("commit-graph chunk id 0x43444154 appears multiple times",
e3.getMessage());
CommitGraphBuilder builder4 = CommitGraphBuilder.builder();
builder4.addExtraList(buffer);
Exception e4 = assertThrows(CommitGraphFormatException.class, () -> {
builder4.addExtraList(buffer);
});
assertEquals("commit-graph chunk id 0x45444745 appears multiple times",
e4.getMessage());
}
@Test
public void testNeededChunk() {
byte[] buffer = new byte[2048];
Exception e1 = assertThrows(CommitGraphFormatException.class, () -> {
CommitGraphBuilder.builder().addOidLookUp(buffer)
.addCommitData(buffer).build();
});
assertEquals("commit-graph 0x4f494446 chunk has not been loaded",
e1.getMessage());
Exception e2 = assertThrows(CommitGraphFormatException.class, () -> {
CommitGraphBuilder.builder().addOidFanout(buffer)
.addCommitData(buffer).build();
});
assertEquals("commit-graph 0x4f49444c chunk has not been loaded",
e2.getMessage());
Exception e3 = assertThrows(CommitGraphFormatException.class, () -> {
CommitGraphBuilder.builder().addOidFanout(buffer)
.addOidLookUp(buffer).build();
});
assertEquals("commit-graph 0x43444154 chunk has not been loaded",
e3.getMessage());
}
}
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