100 lines
3.4 KiB
Java
100 lines
3.4 KiB
Java
/*
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* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @bug 8218280
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* @summary Make sure marking a line feed within a CRLF sequence works correctly
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* @run testng MarkSplitCRLF
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*/
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import java.io.IOException;
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import java.io.LineNumberReader;
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import java.io.Reader;
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import java.io.StringReader;
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import org.testng.annotations.Test;
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import static org.testng.Assert.*;
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public class MarkSplitCRLF {
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@Test
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public static void testSpecifiedBufferSize() throws IOException {
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final String string = "foo\r\nbar";
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try (Reader reader =
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new LineNumberReader(new StringReader(string), 5)) {
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reader.read(); // 'f'
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reader.read(); // 'o'
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reader.read(); // 'o'
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reader.read(); // '\r' -> '\n'
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reader.mark(1); // mark position of '\n'
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reader.read(); // 'b'
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reader.reset(); // reset to '\n' position
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assertEquals(reader.read(), 'b');
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assertEquals(reader.read(), 'a');
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assertEquals(reader.read(), 'r');
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}
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}
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@Test
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public static void testCRNotFollowedByLF() throws IOException {
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final String string = "foo\rbar";
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try (Reader reader =
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new LineNumberReader(new StringReader(string), 5)) {
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reader.read(); // 'f'
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reader.read(); // 'o'
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reader.read(); // 'o'
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reader.read(); // '\r'
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reader.mark(1); // mark position of next character
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reader.read(); // 'b'
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reader.reset(); // reset to position after '\r'
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assertEquals(reader.read(), 'b');
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assertEquals(reader.read(), 'a');
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assertEquals(reader.read(), 'r');
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}
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}
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@Test
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public static void testDefaultBufferSize() throws IOException {
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StringBuilder sb = new StringBuilder(8195);
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for (int i = 0; i < 8190; i++) {
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char c = (char)i;
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sb.append(c);
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}
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sb.append('\r');
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sb.append('\n');
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sb.append('X');
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sb.append('Y');
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sb.append('Z');
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final String string = sb.toString();
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try (Reader reader = new LineNumberReader(new StringReader(string))) {
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for (int i = 0; i < 8191; i++) reader.read();
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reader.mark(1);
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reader.read();
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reader.reset();
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assertEquals(reader.read(), 'X');
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assertEquals(reader.read(), 'Y');
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assertEquals(reader.read(), 'Z');
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}
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}
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}
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