/*
 * DSI utilities
 *
 * Copyright (C) 2010-2020 Sebastiano Vigna
 *
 *  This library is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU Lesser General Public License as published by the Free
 *  Software Foundation; either version 3 of the License, or (at your option)
 *  any later version.
 *
 *  This library is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 *  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 *  for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 */

package it.unimi.dsi.util;

import static org.junit.Assert.assertEquals;

import java.io.StringReader;

import org.junit.Test;

import it.unimi.dsi.io.FastBufferedReader;
import it.unimi.dsi.io.LineIterator;
import it.unimi.dsi.logging.ProgressLogger;


public class LineIteratorTest {

	private static final String TEXT = "0\n1\n2\n3";
	private static final CharSequence[] LINES = TEXT.split("\n");

	@Test
	public void testLineIteratorProgressLogger() {
		testLineIterator(new ProgressLogger());
	}

	@Test
	public void testLineIterator() {
		testLineIterator(null);
	}

	public void testLineIterator(final ProgressLogger pl) {
		final LineIterator lineIterator = new LineIterator(new FastBufferedReader(new StringReader(TEXT)), pl);
		int i = 0;
		while(lineIterator.hasNext())
			assertEquals(LINES[i++].toString(), lineIterator.next().toString());

		assertEquals(i, LINES.length);
	}

}
