/*

 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

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 */

/*

 * @test

 * @library /java/text/testlib

 * @summary test for Character Iterator

 */

/*

 *

 *

 * (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved

 * (C) Copyright IBM Corp. 1996 - 1998 - All Rights Reserved

 *

 * Portions copyright (c) 2007 Sun Microsystems, Inc.

 * All Rights Reserved.

 *

 * The original version of this source code and documentation

 * is copyrighted and owned by Taligent, Inc., a wholly-owned

 * subsidiary of IBM. These materials are provided under terms

 * of a License Agreement between Taligent and Sun. This technology

 * is protected by multiple US and International patents.

 *

 * This notice and attribution to Taligent may not be removed.

 * Taligent is a registered trademark of Taligent, Inc.

 *

 * Permission to use, copy, modify, and distribute this software

 * and its documentation for NON-COMMERCIAL purposes and without

 * fee is hereby granted provided that this copyright notice

 * appears in all copies. Please refer to the file "copyright.html"

 * for further important copyright and licensing information.

 *

 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF

 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED

 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A

 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR

 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR

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 *

 */

import java.text.*;

public class CharacterIteratorTest extends IntlTest {

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

        new CharacterIteratorTest().run(args);

    }

    public CharacterIteratorTest() {

    }

    public void TestConstructionAndEquality() {

        String  testText = "Now is the time for all good men to come to the aid of their country.";

        String  testText2 = "Don't bother using this string.";

        CharacterIterator test1 = new StringCharacterIterator(testText);

        CharacterIterator test2 = new StringCharacterIterator(testText, 5);

        CharacterIterator test3 = new StringCharacterIterator(testText, 2, 20, 5);

        CharacterIterator test4 = new StringCharacterIterator(testText2);

        CharacterIterator test5 = (CharacterIterator)test1.clone();

        if (test1.equals(test2) || test1.equals(test3) || test1.equals(test4))

            errln("Construation or equals() failed: Two unequal iterators tested equal");

        if (!test1.equals(test5))

            errln("clone() or equals() failed: Two clones tested unequal");

        if (test1.hashCode() == test2.hashCode() || test1.hashCode() == test3.hashCode()

                        || test1.hashCode() == test4.hashCode())

            errln("hash() failed:  different objects have same hash code");

        if (test1.hashCode() != test5.hashCode())

            errln("hash() failed:  identical objects have different hash codes");

        test1.setIndex(5);

        if (!test1.equals(test2) || test1.equals(test5))

            errln("setIndex() failed");

    }

    public void TestIteration() {

        String text = "Now is the time for all good men to come to the aid of their country.";

        CharacterIterator   iter = new StringCharacterIterator(text, 5);

        if (iter.current() != text.charAt(5))

            errln("Iterator didn't start out in the right place.");

        char c = iter.first();

        int     i = 0;

        if (iter.getBeginIndex() != 0 || iter.getEndIndex() != text.length())

            errln("getBeginIndex() or getEndIndex() failed");

        logln("Testing forward iteration...");

        do {

            if (c == CharacterIterator.DONE && i != text.length())

                errln("Iterator reached end prematurely");

            else if (c != text.charAt(i))

                errln("Character mismatch at position " + i + ", iterator has " + c +

                                    ", string has " + text.charAt(c));

            if (iter.current() != c)

                errln("current() isn't working right");

            if (iter.getIndex() != i)

                errln("getIndex() isn't working right");

            if (c != CharacterIterator.DONE) {

                c = iter.next();

                i++;

            }

        } while (c != CharacterIterator.DONE);

        c = iter.last();

        i = text.length() - 1;

        logln("Testing backward iteration...");

        do {

            if (c == CharacterIterator.DONE && i >= 0)

                errln("Iterator reached end prematurely");

            else if (c != text.charAt(i))

                errln("Character mismatch at position " + i + ", iterator has " + c +

                                    ", string has " + text.charAt(c));

            if (iter.current() != c)

                errln("current() isn't working right");

            if (iter.getIndex() != i)

                errln("getIndex() isn't working right");

            if (c != CharacterIterator.DONE) {

                c = iter.previous();

                i--;

            }

        } while (c != CharacterIterator.DONE);

        iter = new StringCharacterIterator(text, 5, 15, 10);

        if (iter.getBeginIndex() != 5 || iter.getEndIndex() != 15)

            errln("creation of a restricted-range iterator failed");

        if (iter.getIndex() != 10 || iter.current() != text.charAt(10))

            errln("starting the iterator in the middle didn't work");

        c = iter.first();

        i = 5;

        logln("Testing forward iteration over a range...");

        do {

            if (c == CharacterIterator.DONE && i != 15)

                errln("Iterator reached end prematurely");

            else if (c != text.charAt(i))

                errln("Character mismatch at position " + i + ", iterator has " + c +

                                    ", string has " + text.charAt(c));

            if (iter.current() != c)

                errln("current() isn't working right");

            if (iter.getIndex() != i)

                errln("getIndex() isn't working right");

            if (c != CharacterIterator.DONE) {

                c = iter.next();

                i++;

            }

        } while (c != CharacterIterator.DONE);

        c = iter.last();

        i = 14;

        logln("Testing backward iteration over a range...");

        do {

            if (c == CharacterIterator.DONE && i >= 5)

                errln("Iterator reached end prematurely");

            else if (c != text.charAt(i))

                errln("Character mismatch at position " + i + ", iterator has " + c +

                                    ", string has " + text.charAt(c));

            if (iter.current() != c)

                errln("current() isn't working right");

            if (iter.getIndex() != i)

                errln("getIndex() isn't working right");

            if (c != CharacterIterator.DONE) {

                c = iter.previous();

                i--;

            }

        } while (c != CharacterIterator.DONE);

    }

    /**

     * @bug 4082050 4078261 4078255

     */

    public void TestPathologicalCases() {

        String text = "This is only a test.";

/*

This test is commented out until API-change approval for bug #4082050 goes through.

        // test for bug #4082050 (don't get an error if begin == end, even though all

        // operations on the iterator will cause exceptions)

        // [I actually fixed this so that you CAN create an iterator with begin == end,

        // but all operations on it return DONE.]

        CharacterIterator iter = new StringCharacterIterator(text, 5, 5, 5);

        if (iter.first() != CharacterIterator.DONE

            || iter.next() != CharacterIterator.DONE

            || iter.last() != CharacterIterator.DONE

            || iter.previous() != CharacterIterator.DONE

            || iter.current() != CharacterIterator.DONE

            || iter.getIndex() != 5)

            errln("Got something other than DONE when performing operations on an empty StringCharacterIterator");

*/

CharacterIterator iter = null;

        // if we try to construct a StringCharacterIterator with an endIndex that's off

        // the end of the String under iterator, we're supposed to get an

        // IllegalArgumentException

        boolean gotException = false;

        try {

            iter = new StringCharacterIterator(text, 5, 100, 5);

        }

        catch (IllegalArgumentException e) {

            gotException = true;

        }

        if (!gotException)

            errln("StringCharacterIterator didn't throw an exception when given an invalid substring range.");

        // test for bug #4078255 (getting wrong value from next() when we're at the end

        // of the string)

        iter = new StringCharacterIterator(text);

        int expectedIndex = iter.getEndIndex();

        int actualIndex;

        iter.last();

        actualIndex = iter.getIndex();

        if (actualIndex != expectedIndex - 1)

            errln("last() failed: expected " + (expectedIndex - 1) + ", got " + actualIndex);

        iter.next();

        actualIndex = iter.getIndex();

        if (actualIndex != expectedIndex)

            errln("next() after last() failed: expected " + expectedIndex + ", got " + actualIndex);

        iter.next();

        actualIndex = iter.getIndex();

        if (actualIndex != expectedIndex)

            errln("second next() after last() failed: expected " + expectedIndex + ", got " + actualIndex);

    }

    /*

     * @bug 4123771 4051073

     * #4123771 is actually a duplicate of bug #4051073, which was fixed some time ago, but

     * no one ever added a regression test for it.

     */

    public void TestBug4123771() {

        String text = "Some string for testing";

        StringCharacterIterator iter = new StringCharacterIterator(text);

        int index = iter.getEndIndex();

        try {

            char c = iter.setIndex(index);

        }

        catch (Exception e) {

            System.out.println("method setIndex(int position) throws unexpected exception " + e);

            System.out.println(" position: " + index);

            System.out.println(" getEndIndex(): " + iter.getEndIndex());

            System.out.println(" text.length(): " + text.length());

            errln(""); // re-throw the exception through our test framework

        }

    }

}