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/*
* DSI utilities
*
* Copyright (C) 2010-2023 Sebastiano Vigna
*
* This program and the accompanying materials are made available under the
* terms of the GNU Lesser General Public License v2.1 or later,
* which is available at
* http://www.gnu.org/licenses/old-licenses/lgpl-2.1-standalone.html,
* or the Apache Software License 2.0, which is available at
* https://www.apache.org/licenses/LICENSE-2.0.
*
* This program 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.
*
* SPDX-License-Identifier: LGPL-2.1-or-later OR Apache-2.0
*/
package it.unimi.dsi.lang;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import org.junit.Test;
import it.unimi.dsi.fastutil.io.FastByteArrayInputStream;
import it.unimi.dsi.fastutil.io.FastByteArrayOutputStream;
public class MutableStringTest {
@Test
public void testSqueezeSpace() {
final MutableString s = new MutableString(new char[] { 32, 13, 10, 32, 32, 32, 13, 10, 32, 32, 32, 13, 10, 32, 32, 32, 32, 32 });
assertEquals(new MutableString(" \r\n \r\n \r\n "), s.squeezeSpace());
assertEquals(new MutableString(" "), s.squeezeWhitespace());
}
@Test
public void testSubsequence() {
final MutableString s = new MutableString("abc");
final CharSequence ss = s.subSequence(1, 3);
assertEquals(new MutableString("bc"), ss);
assertEquals(1, ss.subSequence(1, 2).length());
}
@Test
public void testSkipSelfDelimUTF8() throws IOException {
final FastByteArrayOutputStream fastByteArrayOutputStream = new FastByteArrayOutputStream();
new MutableString("a").writeSelfDelimUTF8(fastByteArrayOutputStream);
new MutableString("b").writeSelfDelimUTF8(fastByteArrayOutputStream);
new MutableString("\u221E").writeSelfDelimUTF8(fastByteArrayOutputStream);
new MutableString("c").writeSelfDelimUTF8(fastByteArrayOutputStream);
fastByteArrayOutputStream.flush();
final FastByteArrayInputStream fastByteArrayInputStream = new FastByteArrayInputStream(fastByteArrayOutputStream.array);
assertEquals("a", new MutableString().readSelfDelimUTF8(fastByteArrayInputStream).toString());
assertEquals("b", new MutableString().readSelfDelimUTF8(fastByteArrayInputStream).toString());
assertEquals(1, MutableString.skipSelfDelimUTF8(fastByteArrayInputStream));
assertEquals("c", new MutableString().readSelfDelimUTF8(fastByteArrayInputStream).toString());
fastByteArrayInputStream.position(0);
assertEquals("a", new MutableString().readSelfDelimUTF8(fastByteArrayInputStream).toString());
assertEquals(1, MutableString.skipSelfDelimUTF8(fastByteArrayInputStream));
assertEquals("\uu221E", new MutableString().readSelfDelimUTF8(fastByteArrayInputStream).toString());
assertEquals("c", new MutableString().readSelfDelimUTF8(fastByteArrayInputStream).toString());
}
@Test
public void testIsEmpty() {
assertTrue(new MutableString().compact().isEmpty());
assertTrue(new MutableString().loose().isEmpty());
assertFalse(new MutableString(" ").compact().isEmpty());
assertFalse(new MutableString(" ").loose().isEmpty());
}
}
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