60 lines
2.7 KiB
Java
60 lines
2.7 KiB
Java
/*
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* Copyright (c) 1998, 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 4130097
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@summary toUpperCase and toLowerCase always return a new String,
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whereas if there is no conversion that needs to be done,
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they should be returning the same instance.
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@author James Bond/007
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*/
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public class CaseConvertSameInstance {
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public static void main(String[] args) throws Exception {
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/* these two are the real tests for this bug. */
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if ("foobar".toLowerCase() != "foobar")
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throw new Exception("toLowerCase returned different object");
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if ("FOOBAR".toUpperCase() != "FOOBAR")
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throw new Exception("toUpperCase returned different object");
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/* sanity test toLowerCase with some border conditions. */
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if (!("FooBar".toLowerCase().equals("foobar")))
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throw new Exception("toLowerCase broken");
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if (!("fooBar".toLowerCase().equals("foobar")))
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throw new Exception("toLowerCase broken");
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if (!("foobaR".toLowerCase().equals("foobar")))
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throw new Exception("toLowerCase broken");
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if (!("FOOBAR".toLowerCase().equals("foobar")))
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throw new Exception("toLowerCase broken");
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/* sanity test toUpperCase with some border conditions. */
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if (!("FooBar".toUpperCase().equals("FOOBAR")))
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throw new Exception("toUpperCase broken");
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if (!("fooBar".toUpperCase().equals("FOOBAR")))
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throw new Exception("toUpperCase broken");
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if (!("foobaR".toUpperCase().equals("FOOBAR")))
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throw new Exception("toUpperCase broken");
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if (!("foobar".toUpperCase().equals("FOOBAR")))
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throw new Exception("toUpperCase broken");
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}
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}
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