author | herrick |
Mon, 14 Oct 2019 14:36:45 -0400 | |
branch | JDK-8200758-branch |
changeset 58584 | 910b14f4fe3a |
parent 50098 | 92560438d306 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2018, 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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import java.util.List; |
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import java.util.stream.Collectors; |
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import java.util.stream.IntStream; |
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/** |
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* @test |
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* @summary Basic strip, stripLeading, stripTrailing functionality |
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* @bug 8200377 |
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* @run main/othervm Strip |
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*/ |
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public class Strip { |
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public static void main(String... arg) { |
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testStrip(); |
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testWhitespace(); |
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} |
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/* |
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* Test basic stripping routines |
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*/ |
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static void testStrip() { |
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equal(" abc ".strip(), "abc"); |
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equal(" abc ".stripLeading(), "abc "); |
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equal(" abc ".stripTrailing(), " abc"); |
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equal(" abc\u2022 ".strip(), "abc\u2022"); |
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equal(" abc\u2022 ".stripLeading(), "abc\u2022 "); |
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equal(" abc\u2022 ".stripTrailing(), " abc\u2022"); |
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equal("".strip(), ""); |
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equal("".stripLeading(), ""); |
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equal("".stripTrailing(), ""); |
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equal("\b".strip(), "\b"); |
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equal("\b".stripLeading(), "\b"); |
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equal("\b".stripTrailing(), "\b"); |
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} |
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/* |
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* Test full whitespace range |
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*/ |
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static void testWhitespace() { |
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StringBuilder sb = new StringBuilder(64); |
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IntStream.range(1, 0xFFFF).filter(c -> Character.isWhitespace(c)) |
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.forEach(c -> sb.append((char)c)); |
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String whiteSpace = sb.toString(); |
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String testString = whiteSpace + "abc" + whiteSpace; |
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equal(testString.strip(), "abc"); |
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equal(testString.stripLeading(), "abc" + whiteSpace); |
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equal(testString.stripTrailing(), whiteSpace + "abc"); |
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} |
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/* |
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* Report difference in result. |
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*/ |
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static void report(String message, String inputTag, String input, |
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String outputTag, String output) { |
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System.err.println(message); |
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System.err.println(); |
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System.err.println(inputTag); |
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System.err.println(input.codePoints() |
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.mapToObj(c -> (Integer)c) |
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.collect(Collectors.toList())); |
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System.err.println(); |
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System.err.println(outputTag); |
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System.err.println(output.codePoints() |
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.mapToObj(c -> (Integer)c) |
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.collect(Collectors.toList())); |
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throw new RuntimeException(); |
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} |
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/* |
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* Raise an exception if the two inputs are not equivalent. |
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*/ |
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static void equal(String input, String expected) { |
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if (input == null || expected == null || !expected.equals(input)) { |
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report("Failed equal", "Input:", input, "Expected:", expected); |
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} |
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} |
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} |