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