134 lines
5.4 KiB
Java
134 lines
5.4 KiB
Java
/*
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* Copyright (c) 2000, 2013, 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 6840246 6559590
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* @summary test String.split()
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* @key randomness
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*/
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import java.util.Arrays;
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import java.util.Random;
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import java.util.regex.*;
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public class Split {
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public static void main(String[] args) throws Exception {
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String source = "0123456789";
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for (int limit=-2; limit<3; limit++) {
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for (int x=0; x<10; x++) {
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String[] result = source.split(Integer.toString(x), limit);
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int expectedLength = limit < 1 ? 2 : limit;
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if ((limit == 0) && (x == 9)) {
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// expected dropping of ""
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if (result.length != 1)
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throw new RuntimeException("String.split failure 1");
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if (!result[0].equals("012345678")) {
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throw new RuntimeException("String.split failure 2");
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}
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} else {
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if (result.length != expectedLength) {
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throw new RuntimeException("String.split failure 3");
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}
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if (!result[0].equals(source.substring(0,x))) {
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if (limit != 1) {
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throw new RuntimeException(
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"String.split failure 4");
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} else {
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if (!result[0].equals(source.substring(0,10))) {
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throw new RuntimeException(
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"String.split failure 10");
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}
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}
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}
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if (expectedLength > 1) { // Check segment 2
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if (!result[1].equals(source.substring(x+1,10)))
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throw new RuntimeException("String.split failure 5");
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}
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}
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}
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}
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// Check the case for no match found
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for (int limit=-2; limit<3; limit++) {
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String[] result = source.split("e", limit);
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if (result.length != 1)
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throw new RuntimeException("String.split failure 6");
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if (!result[0].equals(source))
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throw new RuntimeException("String.split failure 7");
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}
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// Check the case for limit == 0, source = "";
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// split() now returns 0-length for empty source "" see #6559590
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source = "";
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String[] result = source.split("e", 0);
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if (result.length != 1)
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throw new RuntimeException("String.split failure 8");
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if (!result[0].equals(source))
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throw new RuntimeException("String.split failure 9");
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// check fastpath of String.split()
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source = "0123456789abcdefgABCDEFG";
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Random r = new Random();
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for (boolean doEscape: new boolean[] {false, true}) {
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for (int cp = 0; cp < 0x11000; cp++) {
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Pattern p = null;
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String regex = new String(Character.toChars(cp));
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if (doEscape)
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regex = "\\" + regex;
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try {
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p = Pattern.compile(regex);
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} catch (PatternSyntaxException pse) {
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// illegal syntax
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try {
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"abc".split(regex);
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} catch (PatternSyntaxException pse0) {
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continue;
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}
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throw new RuntimeException("String.split failure 11");
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}
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int off = r.nextInt(source.length());
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String[] srcStrs = new String[] {
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"",
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source,
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regex + source,
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source + regex,
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source.substring(0, 3)
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+ regex + source.substring(3, 9)
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+ regex + source.substring(9, 15)
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+ regex + source.substring(15),
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source.substring(0, off) + regex + source.substring(off)
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};
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for (String src: srcStrs) {
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for (int limit=-2; limit<3; limit++) {
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if (!Arrays.equals(src.split(regex, limit),
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p.split(src, limit)))
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throw new RuntimeException("String.split failure 12");
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}
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}
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}
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}
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}
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}
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