105 lines
3.4 KiB
Java
105 lines
3.4 KiB
Java
/*
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* Copyright (c) 1998, 2021, 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 4134311 8247918
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* @summary Test if skip works correctly
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* @run testng Skip
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*/
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import java.io.CharArrayReader;
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import java.io.File;
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import java.io.FileReader;
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import java.io.IOException;
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import java.io.LineNumberReader;
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import java.io.PushbackReader;
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import java.io.RandomAccessFile;
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import java.io.Reader;
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import java.io.StringReader;
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import org.testng.Assert;
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import org.testng.annotations.DataProvider;
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import org.testng.annotations.Test;
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public class Skip {
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private static String FILENAME =
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System.getProperty("test.src", ".") + File.separator + "SkipInput.txt";
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private static File file = new File(FILENAME);
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@Test
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public void skip() throws IOException {
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try (FileReader fr = new FileReader(file)) {
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long nchars = 8200;
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long actual = fr.skip(nchars);
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Assert.assertFalse(actual > nchars,
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"Should skip " + nchars + ", but skipped " +actual+" chars");
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}
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}
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@DataProvider(name = "readers")
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public Object[][] getReaders() throws IOException {
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return new Object[][] {
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{new LineNumberReader(new FileReader(file))},
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{new CharArrayReader(new char[] {27})},
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{new PushbackReader(new FileReader(file))},
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{new FileReader(file)},
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{new StringReader(new String(new byte[] {(byte)42}))}
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};
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}
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@Test(dataProvider = "readers")
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public void eof(Reader r) throws IOException {
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r.skip(Long.MAX_VALUE);
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Assert.assertEquals(r.skip(1), 0);
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Assert.assertEquals(r.read(), -1);
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}
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@DataProvider(name = "skipIAE")
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public Object[][] getSkipIAEs() throws IOException {
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return new Object[][] {
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{new LineNumberReader(new FileReader(file))},
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{new PushbackReader(new FileReader(file))},
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{new FileReader(file)}
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};
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}
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@Test(dataProvider = "skipIAE", expectedExceptions = IllegalArgumentException.class)
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public void testThrowsIAE(Reader r) throws IOException {
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r.skip(-1);
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}
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@DataProvider(name = "skipNoIAE")
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public Object[][] getSkipNoIAEs() throws IOException {
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return new Object[][] {
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{new CharArrayReader(new char[] {27})},
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{new StringReader(new String(new byte[] {(byte)42}))}
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};
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}
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@Test(dataProvider = "skipNoIAE")
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public void testNoIAE(Reader r) throws IOException {
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r.skip(-1);
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}
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}
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