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  package org.eclipse.jgit.util;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  
  import java.io.UnsupportedEncodingException;
  
  import org.junit.Test;
  
  public class RawParseUtils_LineMapTest {
  	@Test
  	public void testEmpty() {
  		final IntList map = RawParseUtils.lineMap(new byte[] {}, 0, 0);
  		assertNotNull(map);
  		assertEquals(2, map.size());
  		assertEquals(Integer.MIN_VALUE, map.get(0));
  		assertEquals(0, map.get(1));
  	}
  
  	@Test
  	public void testOneBlankLine() {
  		final IntList map = RawParseUtils.lineMap(new byte[] { '\n' }, 0, 1);
  		assertEquals(3, map.size());
  		assertEquals(Integer.MIN_VALUE, map.get(0));
  		assertEquals(0, map.get(1));
  		assertEquals(1, map.get(2));
  	}
  
  	@Test
  	public void testTwoLineFooBar() throws UnsupportedEncodingException {
  		final byte[] buf = "foo\nbar\n".getBytes("ISO-8859-1");
  		final IntList map = RawParseUtils.lineMap(buf, 0, buf.length);
  		assertEquals(4, map.size());
  		assertEquals(Integer.MIN_VALUE, map.get(0));
  		assertEquals(0, map.get(1));
  		assertEquals(4, map.get(2));
  		assertEquals(buf.length, map.get(3));
  	}
  
  	@Test
  	public void testTwoLineNoLF() throws UnsupportedEncodingException {
  		final byte[] buf = "foo\nbar".getBytes("ISO-8859-1");
  		final IntList map = RawParseUtils.lineMap(buf, 0, buf.length);
  		assertEquals(4, map.size());
  		assertEquals(Integer.MIN_VALUE, map.get(0));
  		assertEquals(0, map.get(1));
  		assertEquals(4, map.get(2));
  		assertEquals(buf.length, map.get(3));
  	}
  
  	@Test
  	public void testFourLineBlanks() throws UnsupportedEncodingException {
  		final byte[] buf = "foo\n\n\nbar\n".getBytes("ISO-8859-1");
  		final IntList map = RawParseUtils.lineMap(buf, 0, buf.length);
  		assertEquals(6, map.size());
  		assertEquals(Integer.MIN_VALUE, map.get(0));
 		assertEquals(0, map.get(1));
 		assertEquals(4, map.get(2));
 		assertEquals(5, map.get(3));
 		assertEquals(6, map.get(4));
 		assertEquals(buf.length, map.get(5));
 	}
 }