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/*

 * @test

 * @bug 8193444

 * @summary Checks SimpleDateFormat.format/parse for the AIOOB exception when

 *          formatting/parsing dates through a pattern string that contains a

 *          sequence of 256 or more non-ASCII unicode characters.

 * @run testng/othervm Bug8193444

 */

import org.testng.annotations.DataProvider;

import org.testng.annotations.Test;

import java.text.DateFormat;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Date;

import static org.testng.Assert.assertEquals;

public class Bug8193444 {

    private static final String NON_ASCII_CHAR = "\u263A";

    @DataProvider(name = "dateFormat")

    Object[][] dateFormatData() {

        return new Object[][]{

            // short_length (between 0 and 254)

            {250},

            // boundary

            {254},

            // long_length

            {257},};

    }

    @Test(dataProvider = "dateFormat")

    public void testDateFormatAndParse(int length)

            throws ParseException {

        String pattern = NON_ASCII_CHAR.repeat(length);

        DateFormat df = new SimpleDateFormat(pattern);

        // format() should not throw AIOOB exception

        String result = df.format(new Date());

        // Since the tested format patterns do not contain any character

        // representing date/time field, those characters are not interpreted,

        // they are simply copied into the output string during formatting

        assertEquals(result, pattern, "Failed to format the date using"

                + " pattern of length: " + length);

        // The format pattern used by this SimpleDateFormat

        // contains a sequence of non-ASCII characters, which does not

        // represent any date/time field. The same sequence is given

        // for parsing, just to check that the parsing does

        // not throw any AIOOB exception.

        // Although as per the parse() specification, the calendar's default

        // values of the date-time fields are used for any missing

        // date-time information, but checking that is not the intention of

        // this test.

        df.parse(pattern);

    }

}