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/*
* Copyright (C) 2008-2009, Google Inc. 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.util;
import static java.nio.charset.StandardCharsets.ISO_8859_1;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertThrows;
import org.eclipse.jgit.errors.BinaryBlobException;
import org.junit.Test;
public class RawParseUtils_LineMapTest {
@Test
public void testEmpty() throws Exception {
final IntList map = RawParseUtils.lineMap(new byte[] {}, 0, 0);
assertNotNull(map);
assertArrayEquals(new int[]{Integer.MIN_VALUE, 0}, asInts(map));
}
@Test
public void testOneBlankLine() throws Exception {
final IntList map = RawParseUtils.lineMap(new byte[] { '\n' }, 0, 1);
assertArrayEquals(new int[]{Integer.MIN_VALUE, 0, 1}, asInts(map));
}
@Test
public void testTwoLineFooBar() {
final byte[] buf = "foo\nbar\n".getBytes(ISO_8859_1);
final IntList map = RawParseUtils.lineMap(buf, 0, buf.length);
assertArrayEquals(new int[]{Integer.MIN_VALUE, 0, 4, buf.length}, asInts(map));
}
@Test
public void testTwoLineNoLF() {
final byte[] buf = "foo\nbar".getBytes(ISO_8859_1);
final IntList map = RawParseUtils.lineMap(buf, 0, buf.length);
assertArrayEquals(new int[]{Integer.MIN_VALUE, 0, 4, buf.length}, asInts(map));
}
@Test
public void testNulByte() {
final byte[] buf = "xxxfoo\nb\0ar".getBytes(ISO_8859_1);
final IntList map = RawParseUtils.lineMap(buf, 3, buf.length);
assertArrayEquals(new int[] { Integer.MIN_VALUE, 3, 7, buf.length },
asInts(map));
}
@Test
public void testLineMapOrBinary() throws Exception {
final byte[] buf = "xxxfoo\nb\0ar".getBytes(ISO_8859_1);
assertThrows(BinaryBlobException.class,
() -> RawParseUtils.lineMapOrBinary(buf, 3, buf.length));
}
@Test
public void testFourLineBlanks() {
final byte[] buf = "foo\n\n\nbar\n".getBytes(ISO_8859_1);
final IntList map = RawParseUtils.lineMap(buf, 0, buf.length);
assertArrayEquals(new int[]{
Integer.MIN_VALUE, 0, 4, 5, 6, buf.length
}, asInts(map));
}
private int[] asInts(IntList l) {
int[] result = new int[l.size()];
for (int i = 0; i < l.size(); i++) {
result[i] = l.get(i);
}
return result;
}
}
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