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    * Copyright (C) 2015, Google Inc.
    * and other copyright owners as documented in the project's IP log.
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    * This program and the accompanying materials are made available
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    * accompanies this distribution, is reproduced below, and is
    * available at http://www.eclipse.org/org/documents/edl-v10.php
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  package org.eclipse.jgit.util;
  
  import static java.nio.charset.StandardCharsets.UTF_8;
  import static org.junit.Assert.assertEquals;
  
  import java.io.BufferedReader;
  import java.io.ByteArrayInputStream;
  import java.io.InputStreamReader;
  import java.io.Reader;
  import java.util.ArrayList;
  import java.util.Collection;
  
  import org.eclipse.jgit.lib.Constants;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.Parameterized;
  import org.junit.runners.Parameterized.Parameter;
  import org.junit.runners.Parameterized.Parameters;
  
  @RunWith(Parameterized.class)
  public class IOReadLineTest {
  	@Parameter(0)
  	public boolean buffered;
  
  	@Parameter(1)
  	public int sizeHint;
  
  	@SuppressWarnings("boxing")
  	@Parameters(name="buffered={0}, sizeHint={1}")
  	public static Collection<Object[]> getParameters() {
  		Boolean[] bv = {false, true};
  		Integer[] sv = {-1, 0, 1, 2, 3, 4, 64};
  		Collection<Object[]> params = new ArrayList<>(bv.length * sv.length);
  		for (boolean b : bv) {
  			for (Integer s : sv) {
  				params.add(new Object[]{b, s});
  			}
  		}
  		return params;
  	}
  
  	@Test
  	public void testReadLine() throws Exception {
  		Reader r = newReader("foo\nbar\nbaz\n");
  		assertEquals("foo\n", readLine(r));
  		assertEquals("bar\n", readLine(r));
  		assertEquals("baz\n", readLine(r));
  		assertEquals("", readLine(r));
  	}
  
  	@Test
  	public void testReadLineNoTrailingNewline() throws Exception {
  		Reader r = newReader("foo\nbar\nbaz");
  		assertEquals("foo\n", readLine(r));
  		assertEquals("bar\n", readLine(r));
  		assertEquals("baz", readLine(r));
 		assertEquals("", readLine(r));
 	}
 
 	private String readLine(Reader r) throws Exception {
 		return IO.readLine(r, sizeHint);
 	}
 
 	private Reader newReader(String in) {
 		Reader r = new InputStreamReader(
 				new ByteArrayInputStream(Constants.encode(in)), UTF_8);
 		if (buffered) {
 			r = new BufferedReader(r);
 		}
 		assertEquals(Boolean.valueOf(buffered),
 				Boolean.valueOf(r.markSupported()));
 		return r;
 	}
 }