1/* 2 * Copyright (c) 1997, 1998, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* @test 25 @bug 4027914 26 @summary Check getParent's handling of root directories 27 */ 28 29import java.io.File; 30 31 32public class GetParent { 33 34 static void check(String path, String[] parents) throws Exception { 35 File f = new File(path); 36 String p; 37 System.err.print(path + ":"); 38 for (int i = 0; i < parents.length; i++) { 39 p = f.getParent(); 40 System.err.print(" (" + p + ")"); 41 if (p == null) 42 throw new Exception("No parent for " + f); 43 if (! p.equals(parents[i])) 44 throw new Exception("Wrong parent for " + f 45 + ": Expected " + parents[i] 46 + ", got " + p); 47 f = new File(p); 48 } 49 if (f.getParent() != null) 50 throw new Exception("Too many parents for " + path); 51 System.err.println(); 52 } 53 54 static void testUnix() throws Exception { 55 check("foo", new String[] { }); 56 check("./foo", new String[] { "." }); 57 check("foo/bar/baz", new String[] { "foo/bar", "foo" }); 58 check("../../foo", new String[] { "../..", ".." }); 59 check("foo//bar", new String[] { "foo" }); 60 check("/foo/bar/baz.gorp", 61 new String[] { "/foo/bar", "/foo", "/" }); 62 } 63 64 static void testWin32() throws Exception { 65 System.err.println("Win32"); 66 check("foo", new String[] { }); 67 check(".\\foo", new String[] { "." }); 68 check("foo\\bar\\baz", new String[] { "foo\\bar", "foo" }); 69 check("..\\..\\foo", new String[] { "..\\..", ".." }); 70 check("c:\\foo\\bar\\baz.xxx", 71 new String[] { "c:\\foo\\bar", "c:\\foo", "c:\\" }); 72 } 73 74 public static void main(String[] args) throws Exception { 75 if (File.separatorChar == '/') testUnix(); 76 if (File.separatorChar == '\\') testWin32(); 77 } 78 79} 80