| /* |
| * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.util.List; |
| import java.util.stream.Collectors; |
| import java.util.stream.IntStream; |
| |
| /** |
| * @test |
| * @summary Basic strip, stripLeading, stripTrailing functionality |
| * @bug 8200377 |
| * @run main/othervm Strip |
| */ |
| |
| public class Strip { |
| public static void main(String... arg) { |
| testStrip(); |
| testWhitespace(); |
| } |
| |
| /* |
| * Test basic stripping routines |
| */ |
| static void testStrip() { |
| equal(" abc ".strip(), "abc"); |
| equal(" abc ".stripLeading(), "abc "); |
| equal(" abc ".stripTrailing(), " abc"); |
| equal(" abc\u2022 ".strip(), "abc\u2022"); |
| equal(" abc\u2022 ".stripLeading(), "abc\u2022 "); |
| equal(" abc\u2022 ".stripTrailing(), " abc\u2022"); |
| equal("".strip(), ""); |
| equal("".stripLeading(), ""); |
| equal("".stripTrailing(), ""); |
| equal("\b".strip(), "\b"); |
| equal("\b".stripLeading(), "\b"); |
| equal("\b".stripTrailing(), "\b"); |
| } |
| |
| /* |
| * Test full whitespace range |
| */ |
| static void testWhitespace() { |
| StringBuilder sb = new StringBuilder(64); |
| IntStream.range(1, 0xFFFF).filter(c -> Character.isWhitespace(c)) |
| .forEach(c -> sb.append((char)c)); |
| String whiteSpace = sb.toString(); |
| |
| String testString = whiteSpace + "abc" + whiteSpace; |
| equal(testString.strip(), "abc"); |
| equal(testString.stripLeading(), "abc" + whiteSpace); |
| equal(testString.stripTrailing(), whiteSpace + "abc"); |
| } |
| |
| /* |
| * Report difference in result. |
| */ |
| static void report(String message, String inputTag, String input, |
| String outputTag, String output) { |
| System.err.println(message); |
| System.err.println(); |
| System.err.println(inputTag); |
| System.err.println(input.codePoints() |
| .mapToObj(c -> (Integer)c) |
| .collect(Collectors.toList())); |
| System.err.println(); |
| System.err.println(outputTag); |
| System.err.println(output.codePoints() |
| .mapToObj(c -> (Integer)c) |
| .collect(Collectors.toList())); |
| throw new RuntimeException(); |
| } |
| |
| /* |
| * Raise an exception if the two inputs are not equivalent. |
| */ |
| static void equal(String input, String expected) { |
| if (input == null || expected == null || !expected.equals(input)) { |
| report("Failed equal", "Input:", input, "Expected:", expected); |
| } |
| } |
| } |