author | bchristi |
Tue, 27 Oct 2015 09:20:24 -0700 | |
changeset 33314 | 777bf87e5050 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 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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|
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/* @test |
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* @bug 8138824 |
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* @summary Test expected equalsIgnoreCase behavior for some known asymmetric case mappings |
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*/ |
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public class EqualsIgnoreCase { |
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private static final String SMALL_I = "i"; |
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private static final String CAPITAL_I = "I"; |
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// Characters that do not map symmetrically between upper/lower case |
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private static final String SMALL_DOTLESS_I = "\u0131"; |
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private static final String CAPITAL_I_WITH_DOT = "\u0130"; |
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private static final String LOWER_GREEK_THETA = "\u03D1"; |
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private static final String CAPITAL_GREEK_THETA = "\u03F4"; |
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public static void main(String[] args) { |
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compareFuncs(SMALL_I, CAPITAL_I, true, true); |
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compareFuncs(CAPITAL_I_WITH_DOT, SMALL_DOTLESS_I, true, false); |
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compareFuncs(LOWER_GREEK_THETA, CAPITAL_GREEK_THETA, true, false); |
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} |
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|
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/** |
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* Compare the actual results of equalsIgnoreCase(): |
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* toUpperCase(toLowerCase(eachChar)) |
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* to the behavior described in the equalsIgnoreCase() spec prior to 8138824: |
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* toUpperCase(eachChar) |
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* toLowerCase(eachChar) |
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* |
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* @param s1 A string |
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* @param s2 Another string |
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* @param expectEquals Expected result of equalsIgnoreCase() |
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* @param expectTuTl Expected result of toUpperToLowerOriginals() |
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*/ |
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private static void compareFuncs(String s1, String s2, boolean expectEquals, boolean expectTuTl) { |
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System.out.println(s1 + ", " + s2); |
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boolean equalsResult = s1.equalsIgnoreCase(s2); |
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System.out.println("equalsIgnoreCase:" + equalsResult); |
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boolean tuTlResult = toUpperToLowerOriginals(s1, s2); |
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System.out.println("tUtLO:" + tuTlResult); |
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boolean failed = false; |
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if (equalsResult != expectEquals) { |
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System.out.println("Expected " + expectEquals + " from equalsIgnoreCase() but got " + equalsResult); |
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failed = true; |
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} |
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if (tuTlResult != expectTuTl) { |
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System.out.println("Expected " + expectTuTl + " from toUpperToLowerOriginals() but got " + tuTlResult); |
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failed = true; |
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} |
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if (failed) { throw new RuntimeException("Test Failed"); } |
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} |
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/** |
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* Apply toUpperCase() and toLowerCase() to corresponding chars of both |
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* Strings. Returns true if each pair of corresponding chars are either: |
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* 1. == after both are converted to upper case |
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* or |
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* 2. == after both are converted to lower case |
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* and the String lengths are equal. |
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*/ |
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private static boolean toUpperToLowerOriginals(String str1, String str2) { |
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if (str1.length() != str2.length()) { return false; } |
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for (int i = 0; i < str1.length(); i++) { |
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char c1 = str1.charAt(i); |
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char c2 = str2.charAt(i); |
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char uc1 = Character.toUpperCase(c1); |
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char uc2 = Character.toUpperCase(c2); |
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boolean upperMatch = uc1 == uc2; |
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char lc1 = Character.toLowerCase(c1); |
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char lc2 = Character.toLowerCase(c2); |
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boolean lowerMatch = lc1 == lc2; |
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if (!(upperMatch || lowerMatch)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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} |