/*

 * Copyright (c) 1998, 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 4131169 4168988

   @summary Basic File constructor tests

 */

import java.io.*;

import java.util.ArrayList;

public class Cons {

    private static boolean debug = false;

    private static boolean old = false;

    private static boolean win32 = (File.separatorChar == '\\');

    private static String cvt(String s) {

        if (s == null) return s;

        if (win32) return s.replace('/', '\\');

        return s;

    }

    private static String[] slashPerms(String s) {

        if (!win32) return new String[] { s };

        if (s == null) return new String[] { s };

        int i = s.indexOf('/');

        if (i < 0) return new String[] { s };

        ArrayList a = new ArrayList();

        String p1 = s.substring(0, i);

        String[] p2 = slashPerms(s.substring(i + 1));

        for (int j = 0; j < p2.length; j++)

            a.add(p1 + '/' + p2[j]);

        for (int j = 0; j < p2.length; j++)

            a.add(p1 + '\\' + p2[j]);

        return (String[])(a.toArray(new String[a.size()]));

    }

    static class F extends File {

        String exp;

        public F(String path) {

            super(path);

            this.exp = cons(path);

        }

        public F(String parent, String child) {

            super(parent, child);

            this.exp = cons(parent, child);

        }

        public F(F parent, String child) {

            super(parent, child);

            if (parent == null) this.exp = cons((String)null, child);

            else this.exp = cons(parent, child);

        }

    }

    private static String nos(String s) {

        if (s == null) return "null";

        else return "\"" + s + "\"";

    }

    private static void ok(String ans, String exp) {

        System.err.println(nos(ans) + " <== " + exp);

    }

    private static void err(String ans, String exp, String got) throws Exception {

        System.err.println(nos(ans) + " <-- " + exp + " ==> " + nos(got));

        if (!debug) {

            throw new Exception("Mismatch: " + exp + " ==> " + nos(got)

                                + ", should be " + nos(ans));

        }

    }

    private static void ck(String ans, String exp, String got)

        throws Exception

    {

        if ((got == ans) || ((got != null) && got.equals(ans))) ok(ans, exp);

        else err(ans, exp, got);

    }

    private static String cons(String arg) {

        return "new File(" + nos(arg) + ")";

    }

    private static String cons(String arg1, String arg2) {

        return "new File(" + nos(arg1) + ", " + nos(arg2) + ")";

    }

    private static String cons(F arg1, String arg2) {

        return "new File(" + arg1.exp + ", " + nos(arg2) + ")";

    }

    private static String op(String exp, String opname) {

        return exp + "." + opname + "()";

    }

    private static void ckpnp(F f,

                              String parent, String name, String path)

        throws Exception

    {

        ck(cvt(path), op(f.exp, "getPath"), f.getPath());

        ck(cvt(parent), op(f.exp, "getParent"), f.getParent());

        ck(cvt(name), op(f.exp, "getName"), f.getName());

    }

    private static void ck1(String arg,

                            String parent, String name, String path)

        throws Exception

    {

        String[] parg = slashPerms(arg);

        for (int i = 0; i < parg.length; i++)

            ckpnp(new F(parg[i]), parent, name, path);

    }

    private static void ck2(String arg1, String arg2,

                            String parent, String name, String path)

        throws Exception

    {

        String[] parg1 = slashPerms(arg1);

        String[] parg2 = slashPerms(arg2);

        for (int i = 0; i < parg1.length; i++)

            for (int j = 0; j < parg2.length; j++)

                ckpnp(new F(parg1[i], parg2[j]), parent, name, path);

    }

    private static void ck2f(String arg1, String arg2,

                             String parent, String name, String path)

        throws Exception

    {

        String[] parg1 = slashPerms(arg1);

        String[] parg2 = slashPerms(arg2);

        for (int i = 0; i < parg1.length; i++)

            for (int j = 0; j < parg2.length; j++) {

                F p = (parg1[i] == null) ? null : new F(parg1[i]);

                ckpnp(new F(p, parg2[j]), parent, name, path);

            }

    }

    static void testBoth() throws Exception {

        /* Null/empty constructor cases */

        ck1("", null, "", "");

        ck2(null, "", null, "", "");

        ck2("", "", null, "", "/"); /* ugh */

        ck2f("", "", null, "", "/");

        if (!old) {

            /* throws NullPointerException */

            ck2f(null, "", null, "", "");

        }

        /* Separators-in-pathnames cases */

        ck1("/", null, "", "/");

        ck2f("/", "", null, "", "/");

        /* One-arg constructor cases */

        ck1("foo", null, "foo", "foo");

        ck1("/foo", "/", "foo", "/foo");

        ck1("/foo/bar", "/foo", "bar", "/foo/bar");

        ck1("foo/bar", "foo", "bar", "foo/bar");

        if (!old) {

            ck1("foo/", null, "foo", "foo");

            ck1("/foo/", "/", "foo", "/foo");

            ck1("/foo//", "/", "foo", "/foo");

            ck1("/foo///", "/", "foo", "/foo");

            ck1("/foo//bar", "/foo", "bar", "/foo/bar");

            ck1("/foo/bar//", "/foo", "bar", "/foo/bar");

            ck1("foo//bar", "foo", "bar", "foo/bar");

            ck1("foo/bar/", "foo", "bar", "foo/bar");

            ck1("foo/bar//", "foo", "bar", "foo/bar");

        }

        /* Two-arg constructor cases, string parent */

        ck2("foo", "bar", "foo", "bar", "foo/bar");

        ck2("foo/", "bar", "foo", "bar", "foo/bar");

        ck2("/foo", "bar", "/foo", "bar", "/foo/bar");

        ck2("/foo/", "bar", "/foo", "bar", "/foo/bar");

        if (!old) {

            ck2("foo//", "bar", "foo", "bar", "foo/bar");

            ck2("foo", "bar/", "foo", "bar", "foo/bar");

            ck2("foo", "bar//", "foo", "bar", "foo/bar");

            ck2("/foo//", "bar", "/foo", "bar", "/foo/bar");

            ck2("/foo", "bar/", "/foo", "bar", "/foo/bar");

            ck2("/foo", "bar//", "/foo", "bar", "/foo/bar");

            ck2("foo", "/bar", "foo", "bar", "foo/bar");

            ck2("foo", "//bar", "foo", "bar", "foo/bar");

            ck2("/", "bar", "/", "bar", "/bar");

            ck2("/", "/bar", "/", "bar", "/bar");

        }

        /* Two-arg constructor cases, File parent */

        ck2f("foo", "bar", "foo", "bar", "foo/bar");

        ck2f("foo/", "bar", "foo", "bar", "foo/bar");

        ck2f("/foo", "bar", "/foo", "bar", "/foo/bar");

        ck2f("/foo/", "bar", "/foo", "bar", "/foo/bar");

        if (!old) {

            ck2f("foo//", "bar", "foo", "bar", "foo/bar");

            ck2f("foo", "bar/", "foo", "bar", "foo/bar");

            ck2f("foo", "bar//", "foo", "bar", "foo/bar");

            ck2f("/foo//", "bar", "/foo", "bar", "/foo/bar");

            ck2f("/foo", "bar/", "/foo", "bar", "/foo/bar");

            ck2f("/foo", "bar//", "/foo", "bar", "/foo/bar");

            ck2f("foo", "/bar", "foo", "bar", "foo/bar");

            ck2f("foo", "//bar", "foo", "bar", "foo/bar");

        }

    }

    static void testUnix() throws Exception {

        /* Separators-in-pathnames cases */

        if (!old) {

            ck1("//", null, "", "/");

        }

        /* One-arg constructor cases */

        if (!old) {

            ck1("//foo", "/", "foo", "/foo");

            ck1("///foo", "/", "foo", "/foo");

            ck1("//foo/bar", "/foo", "bar", "/foo/bar");

        }

        /* Two-arg constructors cases, string parent */

        if (!old) {

            ck2("//foo", "bar", "/foo", "bar", "/foo/bar");

        }

        /* Two-arg constructor cases, File parent */

        if (!old) {

            ck2f("//foo", "bar", "/foo", "bar", "/foo/bar");

        }

        File f = new File("/foo");

        if (! f.isAbsolute()) throw new Exception(f + " should be absolute");

        f = new File("foo");

        if (f.isAbsolute()) throw new Exception(f + " should not be absolute");

    }

    static void testWin32() throws Exception {

        if (!old) {

            /* Separators-in-pathnames cases */

            ck1("//", null, "", "//");

            /* One-arg constructor cases */

            ck1("//foo", "//", "foo", "//foo");

            ck1("///foo", "//", "foo", "//foo");

            ck1("//foo/bar", "//foo", "bar", "//foo/bar");

            ck1("z:", null, "", "z:");

            ck1("z:/", null, "", "z:/");

            ck1("z://", null, "", "z:/");

            ck1("z:/foo", "z:/", "foo", "z:/foo");

            ck1("z:/foo/", "z:/", "foo", "z:/foo");

            ck1("/z:/foo", "z:/", "foo", "z:/foo");

            ck1("//z:/foo", "z:/", "foo", "z:/foo");

            ck1("z:/foo/bar", "z:/foo", "bar", "z:/foo/bar");

            ck1("z:foo", "z:", "foo", "z:foo");

            /* Two-arg constructors cases, string parent */

            ck2("z:", "/", null, "", "z:/");    /* ## ? */

            ck2("z:", "/foo", "z:/", "foo", "z:/foo");

            ck2("z:/", "foo", "z:/", "foo", "z:/foo");

            ck2("z://", "foo", "z:/", "foo", "z:/foo");

            ck2("z:/", "/foo", "z:/", "foo", "z:/foo");

            ck2("z:/", "//foo", "z:/", "foo", "z:/foo");

            ck2("z:/", "foo/", "z:/", "foo", "z:/foo");

            ck2("//foo", "bar", "//foo", "bar", "//foo/bar");

            /* Two-arg constructor cases, File parent */

            ck2f("//foo", "bar", "//foo", "bar", "//foo/bar");

        }

    }

    public static void main(String[] args) throws Exception {

        old = new File("foo/").getPath().equals("foo/");

        if (old) System.err.println("** Testing old java.io.File class");

        testBoth();

        if (win32) testWin32();

        else testUnix();

    }

}