/*
 *******************************************************************************
 * Copyright (C) 1996-2000, International Business Machines Corporation and    *
 * others. All Rights Reserved.                                                *
 *******************************************************************************
 *
 * $Source: /xsrl/Nsvn/icu/icu4j/src/com/ibm/icu/dev/test/calendar/HebrewTest.java,v $ 
 * $Date: 2002/02/16 03:05:06 $ 
 * $Revision: 1.4 $
 *
 *****************************************************************************************
 */

package com.ibm.icu.dev.test.calendar;

import com.ibm.icu.dev.test.*;
import com.ibm.icu.util.*;
import java.util.Locale;

/**
 * Tests for the <code>HebrewCalendar</code> class.
 */
public class HebrewTest extends CalendarTest {
    public static void main(String args[]) throws Exception {
        new HebrewTest().run(args);
    }

    // Constants to save typing.
    public static final int TISHRI  = HebrewCalendar.TISHRI;
    public static final int HESHVAN = HebrewCalendar.HESHVAN;
    public static final int KISLEV  = HebrewCalendar.KISLEV;
    public static final int TEVET   = HebrewCalendar.TEVET;
    public static final int SHEVAT  = HebrewCalendar.SHEVAT;
    public static final int ADAR_1  = HebrewCalendar.ADAR_1;
    public static final int ADAR    = HebrewCalendar.ADAR;
    public static final int NISAN   = HebrewCalendar.NISAN;
    public static final int IYAR    = HebrewCalendar.IYAR;
    public static final int SIVAN   = HebrewCalendar.SIVAN;
    public static final int TAMUZ   = HebrewCalendar.TAMUZ;
    public static final int AV      = HebrewCalendar.AV;
    public static final int ELUL    = HebrewCalendar.ELUL;

    /**
     * Test the behavior of HebrewCalendar.roll
     * The only real nastiness with roll is the MONTH field, since a year can
     * have a variable number of months.
     */
    public void TestRoll() {
        int[][] tests = new int[][] {
            //       input                roll by          output
            //  year  month     day     field amount    year  month     day
    
            {   5759, HESHVAN,   2,     MONTH,   1,     5759, KISLEV,    2 },   // non-leap years
            {   5759, SHEVAT,    2,     MONTH,   1,     5759, ADAR,      2 },
            {   5759, SHEVAT,    2,     MONTH,   2,     5759, NISAN,     2 },
            {   5759, SHEVAT,    2,     MONTH,  12,     5759, SHEVAT,    2 },
            {   5759, AV,        1,     MONTH,  12,     5759, AV,        1 }, // Alan

            {   5757, HESHVAN,   2,     MONTH,   1,     5757, KISLEV,    2 },   // leap years
            {   5757, SHEVAT,    2,     MONTH,   1,     5757, ADAR_1,    2 },
            {   5757, SHEVAT,    2,     MONTH,   2,     5757, ADAR,      2 },
            {   5757, SHEVAT,    2,     MONTH,   3,     5757, NISAN,     2 },
            {   5757, SHEVAT,    2,     MONTH,  12,     5757, TEVET,     2 },
            {   5757, SHEVAT,    2,     MONTH,  13,     5757, SHEVAT,    2 },
            {   5757, AV,        1,     MONTH,  12,     5757, TAMUZ,     1 }, // Alan
            
            {   5757, KISLEV,    1,     DATE,   30,     5757, KISLEV,    2 },   // 29-day month
            {   5758, KISLEV,    1,     DATE,   31,     5758, KISLEV,    2 },   // 30-day month
            
            // Try some other fields too
            {   5757, TISHRI,    1,     YEAR,    1,     5758, TISHRI,    1 },
   

            // Try some rolls that require other fields to be adjusted
            {   5757, TISHRI,   30,     MONTH,   1,     5757, HESHVAN,  29 },
            {   5758, KISLEV,   30,     YEAR,   -1,     5757, KISLEV,   29 },
        };
       
        HebrewCalendar cal = new HebrewCalendar(UTC, Locale.getDefault());

        doRollAdd(ROLL, cal, tests);
    }
    
    /**
     * Test the behavior of HebrewCalendar.roll
     * The only real nastiness with roll is the MONTH field, since a year can
     * have a variable number of months.
     */
    public void TestAdd() {
        int[][] tests = new int[][] {
            //       input                add by          output
            //  year  month     day     field amount    year  month     day
            {   5759, HESHVAN,   2,     MONTH,   1,     5759, KISLEV,    2 },   // non-leap years
            {   5759, SHEVAT,    2,     MONTH,   1,     5759, ADAR,      2 },
            {   5759, SHEVAT,    2,     MONTH,   2,     5759, NISAN,     2 },
            {   5759, SHEVAT,    2,     MONTH,  12,     5760, SHEVAT,    2 },

            {   5757, HESHVAN,   2,     MONTH,   1,     5757, KISLEV,    2 },   // leap years
            {   5757, SHEVAT,    2,     MONTH,   1,     5757, ADAR_1,    2 },
            {   5757, SHEVAT,    2,     MONTH,   2,     5757, ADAR,      2 },
            {   5757, SHEVAT,    2,     MONTH,   3,     5757, NISAN,     2 },
            {   5757, SHEVAT,    2,     MONTH,  12,     5758, TEVET,     2 },
            {   5757, SHEVAT,    2,     MONTH,  13,     5758, SHEVAT,    2 },
            
            {   5757, KISLEV,    1,     DATE,   30,     5757, TEVET,     2 },   // 29-day month
            {   5758, KISLEV,    1,     DATE,   31,     5758, TEVET,     2 },   // 30-day month
        };
       
        HebrewCalendar cal = new HebrewCalendar(UTC, Locale.getDefault());

        doRollAdd(ADD, cal, tests);
    }

    /**
     * A huge list of test cases to make sure that computeTime and computeFields
     * work properly for a wide range of data.
     */
    public void TestCases() {
        doTestCases(testCases, new HebrewCalendar());
    }

    static final TestCase[] testCases = {
        //
        // Most of these test cases were taken from the back of
        // "Calendrical Calculations", with some extras added to help
        // debug a few of the problems that cropped up in development.
        //
        // The months in this table are 1-based rather than 0-based,
        // because it's easier to edit that way.
        //
        //         Julian Day  Era  Year  Month Day  WkDay Hour Min Sec
        new TestCase(1507231.5,  0,  3174,   12,  10,  SUN,   0,  0,  0),
        new TestCase(1660037.5,  0,  3593,    3,  25,  WED,   0,  0,  0),
        new TestCase(1746893.5,  0,  3831,    1,   3,  WED,   0,  0,  0),
        new TestCase(1770641.5,  0,  3896,    1,   9,  SUN,   0,  0,  0),
        new TestCase(1892731.5,  0,  4230,    4,  18,  WED,   0,  0,  0),
        new TestCase(1931579.5,  0,  4336,   10,   4,  MON,   0,  0,  0),
        new TestCase(1974851.5,  0,  4455,    2,  13,  SAT,   0,  0,  0),
        new TestCase(2091164.5,  0,  4773,    9,   6,  SUN,   0,  0,  0),
        new TestCase(2121509.5,  0,  4856,    9,  23,  SUN,   0,  0,  0),
        new TestCase(2155779.5,  0,  4950,    8,   7,  FRI,   0,  0,  0),
        new TestCase(2174029.5,  0,  5000,    7,   8,  SAT,   0,  0,  0),
        new TestCase(2191584.5,  0,  5048,    8,  21,  FRI,   0,  0,  0),
        new TestCase(2195261.5,  0,  5058,    9,   7,  SUN,   0,  0,  0),
        new TestCase(2229274.5,  0,  5151,   11,   1,  SUN,   0,  0,  0),
        new TestCase(2245580.5,  0,  5196,    5,   7,  WED,   0,  0,  0),
        new TestCase(2266100.5,  0,  5252,    8,   3,  SAT,   0,  0,  0),
        new TestCase(2288542.5,  0,  5314,    1,   1,  SAT,   0,  0,  0),
        new TestCase(2290901.5,  0,  5320,    6,  27,  SAT,   0,  0,  0),
        new TestCase(2323140.5,  0,  5408,   10,  20,  WED,   0,  0,  0),
        new TestCase(2334551.5,  0,  5440,    1,   1,  THU,   0,  0,  0),
        new TestCase(2334581.5,  0,  5440,    2,   1,  SAT,   0,  0,  0),
        new TestCase(2334610.5,  0,  5440,    3,   1,  SUN,   0,  0,  0),
        new TestCase(2334639.5,  0,  5440,    4,   1,  MON,   0,  0,  0),
        new TestCase(2334668.5,  0,  5440,    5,   1,  TUE,   0,  0,  0),
        new TestCase(2334698.5,  0,  5440,    6,   1,  THU,   0,  0,  0),
        new TestCase(2334728.5,  0,  5440,    7,   1,  SAT,   0,  0,  0),
        new TestCase(2334757.5,  0,  5440,    8,   1,  SUN,   0,  0,  0),
        new TestCase(2334787.5,  0,  5440,    9,   1,  TUE,   0,  0,  0),
        new TestCase(2334816.5,  0,  5440,   10,   1,  WED,   0,  0,  0),
        new TestCase(2334846.5,  0,  5440,   11,   1,  FRI,   0,  0,  0),
        new TestCase(2334848.5,  0,  5440,   11,   3,  SUN,   0,  0,  0),
        new TestCase(2334934.5,  0,  5441,    1,   1,  TUE,   0,  0,  0),
        new TestCase(2348020.5,  0,  5476,   12,   5,  FRI,   0,  0,  0),
        new TestCase(2366978.5,  0,  5528,   11,   4,  SUN,   0,  0,  0),
        new TestCase(2385648.5,  0,  5579,   12,  11,  MON,   0,  0,  0),
        new TestCase(2392825.5,  0,  5599,    8,  12,  WED,   0,  0,  0),
        new TestCase(2416223.5,  0,  5663,    8,  22,  SUN,   0,  0,  0),
        new TestCase(2425848.5,  0,  5689,   12,  19,  SUN,   0,  0,  0),
        new TestCase(2430266.5,  0,  5702,    1,   8,  MON,   0,  0,  0),
        new TestCase(2430833.5,  0,  5703,    8,  14,  MON,   0,  0,  0),
        new TestCase(2431004.5,  0,  5704,    1,   8,  THU,   0,  0,  0),
        new TestCase(2448698.5,  0,  5752,    7,  12,  TUE,   0,  0,  0),
        new TestCase(2450138.5,  0,  5756,    7,   5,  SUN,   0,  0,  0),
        new TestCase(2465737.5,  0,  5799,    2,  12,  WED,   0,  0,  0),
        new TestCase(2486076.5,  0,  5854,   12,   5,  SUN,   0,  0,  0),

        // Additional test cases for bugs found during development
        //           G.YY/MM/DD  Era  Year  Month Day  WkDay Hour Min Sec
        new TestCase(1013, 9, 8, 0,  4774,    1,   1,  TUE,   0,  0,  0),
        new TestCase(1239, 9, 1, 0,  5000,    1,   1,  THU,   0,  0,  0),
        new TestCase(1240, 9,18, 0,  5001,    1,   1,  TUE,   0,  0,  0),

        // Test cases taken from a table of 14 "year types" in the Help file
        // of the application "Hebrew Calendar"
        new TestCase(2456187.5,  0,  5773,    1,   1,  MON,   0,  0,  0),
        new TestCase(2459111.5,  0,  5781,    1,   1,  SAT,   0,  0,  0),
        new TestCase(2453647.5,  0,  5766,    1,   1,  TUE,   0,  0,  0),
        new TestCase(2462035.5,  0,  5789,    1,   1,  THU,   0,  0,  0),
        new TestCase(2458756.5,  0,  5780,    1,   1,  MON,   0,  0,  0),
        new TestCase(2460586.5,  0,  5785,    1,   1,  THU,   0,  0,  0),
        new TestCase(2463864.5,  0,  5794,    1,   1,  SAT,   0,  0,  0),
        new TestCase(2463481.5,  0,  5793,    1,   1,  MON,   0,  0,  0),
        new TestCase(2470421.5,  0,  5812,    1,   1,  THU,   0,  0,  0),
        new TestCase(2460203.5,  0,  5784,    1,   1,  SAT,   0,  0,  0),
        new TestCase(2459464.5,  0,  5782,    1,   1,  TUE,   0,  0,  0),
        new TestCase(2467142.5,  0,  5803,    1,   1,  MON,   0,  0,  0),
        new TestCase(2455448.5,  0,  5771,    1,   1,  THU,   0,  0,  0),
        new TestCase(2487223.5,  0,  5858,    1,   1,  SAT,   0,  0,  0),
    };
    
    /**
     * Problem reported by Armand Bendanan in which setting of the MONTH
     * field in a Hebrew calendar causes the time fields to go negative.
     */
    public void TestTimeFields() {
        HebrewCalendar calendar = new HebrewCalendar(5761, 0, 11, 12, 28, 15);
		calendar.set(Calendar.YEAR, 5717);
		calendar.set(Calendar.MONTH, 2);
		calendar.set(Calendar.DAY_OF_MONTH, 23);
        if (calendar.get(Calendar.HOUR_OF_DAY) != 12) {
            errln("Fail: HebrewCalendar HOUR_OF_DAY = " + calendar.get(Calendar.HOUR_OF_DAY));
        }
    }

    /**
     * Test of the behavior of the month field.  This requires special
     * handling in the Hebrew calendar because of the pattern of leap
     * years.
     */
    public void TestMonthMovement() {
        HebrewCalendar cal = new HebrewCalendar();
        // Leap years are:
        // 3 6 8 11 14 17 19 (and so on - 19-year cycle)
        // We can't test complete() on some lines below because of ADAR_1 -- if
        // the calendar is set to ADAR_1 on a non-leap year, the result is undefined.
        int[] DATA = {
            // c     - test complete() or not
            // m/y   - before and after month/year
            // delta - amount to add to month field
            //c m1  y1 delta  m2  y2
            1,  10,  2,  +24,  9,  4, // (year 2, month 10) + 24 months -> (y 4, m 9)
            1,  10,  2,  +60,  8,  7, // (y 2, m 10) + 60 months -> (y 7, m 8)
            1,   1,  2,  +12,  1,  3, // (y 2, m 1) + 12 months -> (y 3, m 1)
            1,   3, 18,  -24,  4, 16, // (y 18, m 3) - 24 months -> (y 16, m 4)
            1,   1,  6,  -24,  1,  4,
            1,   4,  3,   +2,  6,  3, // Leap year - no skip 4,5,6,7,8
            1,   8,  3,   -2,  6,  3, // Leap year - no skip
            0,   4,  2,   +2,  7,  2, // Skip over leap month 4,5,(6),7,8
            0,   8,  2,   -2,  5,  2, // Skip over leap month going backward
        };
        for (int i=0; i<DATA.length; ) {
            boolean testComplete = DATA[i++] != 0;
            int m = DATA[i++], y = DATA[i++];
            int monthDelta = DATA[i++];
            int m2 = DATA[i++], y2 = DATA[i++];
            int mact, yact;

            cal.clear();
            cal.set(Calendar.YEAR, y);
            cal.set(Calendar.MONTH, m-1);
            cal.add(Calendar.MONTH, monthDelta);
            yact = cal.get(Calendar.YEAR); mact = cal.get(Calendar.MONTH) + 1;
            if (y2 != yact || m2 != mact) {
                errln("Fail: " + m + "/" + y +
                      " -> add(MONTH, " + monthDelta + ") -> " +
                      mact + "/" + yact + ", expected " +
                      m2 + "/" + y2);
                cal.clear();
                cal.set(Calendar.YEAR, y);
                cal.set(Calendar.MONTH, m-1);
                logln("Start: " + m + "/" + y);
                int delta = monthDelta > 0 ? 1 : -1;
                for (int c=0; c!=monthDelta; c+=delta) {
                    cal.add(Calendar.MONTH, delta);
                    logln("+ " + delta + " MONTH -> " +
                          (cal.get(Calendar.MONTH) + 1) + "/" + cal.get(Calendar.YEAR));
                }
            }
            
            if (testComplete) {
                cal.clear();
                cal.set(Calendar.YEAR, y);
                cal.set(Calendar.MONTH, m + monthDelta - 1);
                yact = cal.get(Calendar.YEAR); mact = cal.get(Calendar.MONTH) + 1;
                if (y2 != yact || m2 != mact) {
                    errln("Fail: " + (m+monthDelta) + "/" + y +
                          " -> complete() -> " +
                          mact + "/" + yact + ", expected " +
                          m2 + "/" + y2);
                }
            }
        }
    }

    /**
     * Test handling of ADAR_1.
     */
    /*
    public void TestAdar1() {
        HebrewCalendar cal = new HebrewCalendar();
        cal.clear();
        cal.set(Calendar.YEAR, 1903); // leap
        cal.set(Calendar.MONTH, HebrewCalendar.ADAR_1);
        logln("1903(leap)/ADAR_1 => " +
              cal.get(Calendar.YEAR) + "/" + (cal.get(Calendar.MONTH)+1));

        cal.clear();
        cal.set(Calendar.YEAR, 1904); // non-leap
        cal.set(Calendar.MONTH, HebrewCalendar.ADAR_1);
        logln("1904(non-leap)/ADAR_1 => " +
              cal.get(Calendar.YEAR) + "/" + (cal.get(Calendar.MONTH)+1));
    }
    */

    /**
     * With no fields set, the calendar should use default values.
     */
    public void TestDefaultFieldValues() {
        HebrewCalendar cal = new HebrewCalendar();
        cal.clear();
        logln("cal.clear() -> " + cal.getTime());
    }
};