66 lines
2.4 KiB
Java
66 lines
2.4 KiB
Java
/*
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* Copyright (c) 2003, 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 4175312
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* @summary Test StringReader.skip with negative param
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*/
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import java.io.*;
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public class Skip {
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public static void main( String argv[] ) throws Exception {
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StringReader in = new StringReader("1234567");
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// Skip forward and read
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if (in.skip(3) != 3)
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throw new RuntimeException("skip(3) failed");
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if (in.read() != '4')
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throw new RuntimeException("post skip read failure");
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// Skip backward and read
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if (in.skip(-2) != -2)
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throw new RuntimeException("skip(-2) failed");
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if (in.read() != '3')
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throw new RuntimeException("read failed after negative skip");
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// Attempt to skip backward past the beginning and read
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if (in.skip(-6) != -3)
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throw new RuntimeException("skip(-6) failed");
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if (in.read() != '1')
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throw new RuntimeException("read after skip past beginning failed");
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// Skip beyond the end
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if (in.skip(30) != 6)
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throw new RuntimeException("skip(30) failed");
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if (in.read() != -1)
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throw new RuntimeException("read at EOF failed");
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// Test after reaching end of string
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if (in.skip(30) != 0)
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throw new RuntimeException("skip(30) failed");
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if (in.skip(-30) != 0)
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throw new RuntimeException("skip(30) failed");
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}
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}
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