// Test simple forms of DecimalFormat.format.

// Copyright (c) 1999, 2003  Cygnus Solutions
// Written by Tom Tromey <tromey@cygnus.com>

// This file is part of Mauve.

// Mauve is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.

// Mauve 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 for more details.

// You should have received a copy of the GNU General Public License
// along with Mauve; see the file COPYING.  If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.

// Tags: JDK1.1

package gnu.testlet.java.text.DecimalFormat;

import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;

import java.math.BigInteger;
import java.text.DecimalFormat;
import java.util.Locale;

public class format
    implements Testlet
{
  public void test(TestHarness harness)
  {
    testGeneral(harness);
    testRounding(harness);
    testMiscellaneous(harness);
    testBigInteger(harness);
    testNaN(harness);
    testInfinity(harness);
    testMaximumDigits(harness);
    testLocale(harness);
  }

  public void apply(TestHarness harness, DecimalFormat df, String pattern)
  {
    harness.checkPoint("pattern " + pattern);
    boolean ok = true;
    try
      {
        df.applyPattern(pattern);
      }
    catch (IllegalArgumentException x)
      {
        ok = false;
      }
    harness.check(ok);
  }

  public void testGeneral(TestHarness harness)
  {
    // Just to be explicit: we're only testing the US locale here.
    Locale loc = Locale.US;
    Locale.setDefault(loc);

    // Some tests taken from JCL book.
    DecimalFormat df = new DecimalFormat("0.##;-0.##");
    harness.check(df.format(- 1234.56), "-1234.56");
    harness.check(df.format(1234.56), "1234.56");

    apply(harness, df, "0.#");
    harness.check(df.format(- 1234.56), "-1234.6");
    harness.check(df.format(1234.56), "1234.6");

    apply(harness, df, "#,##0.##;-#");
    harness.check(df.format(- 1234.56), "-1,234.56");
    harness.check(df.format(1234.56), "1,234.56");

    apply(harness, df, "#,##0.###");
    harness.check(df.format(Double.valueOf(80).doubleValue()), "80");
    
    apply(harness, df, "00,000.000;-00,000.000");
    harness.check(df.format(- 1234.56), "-01,234.560");
    harness.check(df.format(1234.56), "01,234.560");

    apply(harness, df, "##,###,####.");
    df.setDecimalSeparatorAlwaysShown(true);
    harness.check(df.format(- 1234.56), "-1235.");
    harness.check(df.format(1234.56), "1235.");
    harness.check(df.format(-1234567.890), "-123,4568.");
    
    apply(harness, df, "#,###,###");
    harness.check(df.format(-1234567.890), "-1,234,568");
    
    apply(harness, df, "0");
    harness.check(df.format(- 1234.56), "-1235");
    harness.check(df.format(1234.56), "1235");

    harness.check(df.format(Long.MIN_VALUE), "-9223372036854775808");

    apply(harness, df, "#");
    harness.check(df.format(0), "0");
    harness.check(df.format(0.0), "0");

    apply(harness, df, "###0.#;(###0.#)");
    harness.check(df.format(- 1234.56), "(1234.6)");
    harness.check(df.format(1234.56), "1234.6");

    apply(harness, df, "###0.#;###0.#-");
    harness.check(df.format(- 1234.56), "1234.6-");
    harness.check(df.format(1234.56), "1234.6");

    apply(harness, df, "#,##0%;-#,##0%");
    harness.check(df.format(- 1234.56), "-123,456%");
    harness.check(df.format(1234.56), "123,456%");

    apply(harness, df, "#.#");
    harness.check(df.format(0.2), "0.2");

    apply(harness, df, "'#'#.#");
    harness.check(df.format(30), "#30");

    apply(harness, df, "000000");
    harness.check(df.format(-1234.567), "-001235");
    
    apply(harness, df, "##");
    harness.check(df.format(-1234.567), "-1235");
    
    harness.check(df.format(0), "0");
    
    apply(harness, df, "##00");
    harness.check(df.format(0), "00");
    
    apply(harness, df, ".00");
    harness.check(df.format(-.567), "-.57");
    
    apply(harness, df, "0.00");
    harness.check(df.format(-.567), "-0.57");
    
    apply(harness, df, ".######");
    harness.check(df.format(-1234.567), "-1234.567");
    
    apply(harness, df, "#.000000");
    harness.check(df.format(-1234.567), "-1234.567000");
    
    apply(harness, df, "'#'#");
    harness.check(df.format(-1234.567), "-#1235");
    
    apply(harness, df, "'abc'#");
    harness.check(df.format(-1234.567), "-abc1235");
    
    apply(harness, df, "'positive'#;'negative' -");
    harness.check(df.format(-1234.567), "negative -1235");
    harness.check(df.format(1234.567), "positive1235");
    
    apply(harness, df, "#,##0%");
    harness.check(df.format(10000000.1234d), "1,000,000,012%");
     
    apply(harness, df, "\u00A4#,##0.00;(\u00A4#,##0.00)");
    harness.check(df.format(10000), "$10,000.00");
    
    apply(harness, df, "$#,##0.00;($#,##0.00)");
    harness.check(df.format(10000), "$10,000.00");
    
    // grouping size of zero might cause a failure - see bug parade 4088503
    harness.checkPoint("regression tests for setGroupingSize");
    df = new DecimalFormat();
    df.setGroupingSize(0);
    harness.check(df.format(100000), "100000");
    harness.check(df.isGroupingUsed());
    harness.check(df.getGroupingSize(), 0);
    
    // FIXME: we don't actually know the right result here, because
    // neither the JCL book nor the JDK 1.2 docs explain what should
    // happen. The below represents how I think things ought to
    // work. However, Sun has a different (and more confusing)
    // idea. E.g., JDK1.1 prints "200000.0000E" in the first case.
    // apply (harness, df, "0.0000E#");
    // harness.check (df.format (200000), "2.0000E+5");
    // apply (harness, df, "00.00E00");
    // harness.check (df.format (200000), "20.00E+04");
  }

  /**
   * Checks that rounding behaviour follows "half-even" rounding. For example,
   * see bug parade 4763975.
   * 
   * @param harness the harness.
   */
  private void testRounding(TestHarness harness)
  {
    harness.checkPoint("DecimalFormat rounding");
    Locale original = Locale.getDefault();
    Locale.setDefault(Locale.UK);
    DecimalFormat f = new DecimalFormat("0.00");
    harness.check(f.format(1.225), "1.22");
    harness.check(f.format(1.235), "1.24");
    Locale.setDefault(original);
  }

  private void testMiscellaneous(TestHarness harness)
  {
    harness.checkPoint("DecimalFormat: misc");
    Locale original = Locale.getDefault();
    Locale.setDefault(Locale.UK);

    DecimalFormat f = new DecimalFormat("0");

    // try formatting a null object
    boolean pass = false;
    try
      {
        f.format(null);
      }
    catch (IllegalArgumentException e)
      {
        pass = true;
      }
    harness.check(pass);

    // try formatting an object that is not a Number
    pass = false;
    try
      {
        f.format("XYZ");
      }
    catch (IllegalArgumentException e)
      {
        pass = true;
      }
    harness.check(pass);

    // some implementations can't handle custom subclasses of Number
    pass = true;
    try
      {
        f.format(new Number()
        {
          public float floatValue()
          {
            return 0.0f;
          }

          public double doubleValue()
          {
            return 0.0f;
          }

          public long longValue()
          {
            return 0l;
          }

          public int intValue()
          {
            return 0;
          }
        });
      }
    catch (Exception e)
      {
        pass = false;
      }
    harness.check(pass);

    Locale.setDefault(original);
  }

  /**
   * See PR 28462.
   */
  private void testBigInteger(TestHarness harness)
  {
    Locale orig = Locale.getDefault();
    Locale.setDefault(Locale.US);
    harness.checkPoint("BigInteger format");
    String expect = "123,456,789,012,345,678,901,234,567,890";
    BigInteger bi = new BigInteger("123456789012345678901234567890", 10);

    DecimalFormat df = new DecimalFormat();
    harness.check(df.format(bi), expect);
    Locale.setDefault(orig);
  }
  
  /**
   * @param harness
   */
  private void testInfinity(TestHarness harness)
  {
    Locale orig = Locale.getDefault();
    Locale.setDefault(Locale.US);
    
    harness.checkPoint("testInfinity");
    String expectPositive = "\u221E";
    String expectNegative = "-\u221E";
    
    double positiveInf = Double.longBitsToDouble(0x7ff0000000000000L);
    double negativeInf = Double.longBitsToDouble(0xfff0000000000000L);
    
    DecimalFormat df = new DecimalFormat();
    harness.check(df.format(positiveInf), expectPositive, "positive inf.");
    harness.check(df.format(negativeInf), expectNegative, "negative inf.");
    
    Locale.setDefault(orig);
  }

  /**
   * @param harness
   */
  private void testNaN(TestHarness harness)
  {
    Locale orig = Locale.getDefault();
    Locale.setDefault(Locale.US);
    
    harness.checkPoint("testNaN");
    String expect = "\uFFFD";
    
    double nan = Double.longBitsToDouble(0x7ff8000000000000L);
    
    DecimalFormat df = new DecimalFormat();
    
    // NaN does not have prefixes and suffixes
    harness.check(df.format(nan), expect);
    harness.check(df.format(-nan), expect, "NaN with a negative sign as pefix");
    
    Locale.setDefault(orig);
  }
  
  private void testMaximumDigits(TestHarness harness)
  {
    Locale orig = Locale.getDefault();
    Locale.setDefault(Locale.US);
    
    harness.checkPoint("testMaxAndMinDigits");

    double number = 123456789.987654321;
    
    DecimalFormat df = new DecimalFormat();
    
    df.setGroupingUsed(false);
    df.setGroupingSize(3);
    
    df.setMaximumIntegerDigits(2);
    df.setMaximumFractionDigits(4);
          
    // NaN does not have prefixes and suffixes
    harness.check(df.format(number), "89.9877");
    
    df.setMaximumIntegerDigits(5);
    df.setMaximumFractionDigits(0);

    harness.check(df.format(number), "56790");
    
    df.setMaximumIntegerDigits(0);
    df.setMaximumFractionDigits(5);

    harness.check(df.format(number), ".98765");
    
    df.setMaximumIntegerDigits(-1);
    df.setMaximumFractionDigits(-1);
    
    harness.check(df.format(number), "0");
    
    df.setMaximumIntegerDigits(390);
    df.setMaximumFractionDigits(340);
    
    harness.check(df.format(number), "123456789.98765433");
    
    Locale.setDefault(orig);
  }
  
  private void testLocale(TestHarness harness)
  {
    // just two tests, other are in gnu.testlet.locales.LocaleTest
    
    harness.checkPoint("locale: GERMANY");
    
    // by default, calls DecimalFormat
    java.text.NumberFormat nf
      = java.text.NumberFormat.getCurrencyInstance(Locale.GERMANY);
    
    harness.check(nf.format(5000.25), "5.000,25 €");
    
    harness.checkPoint("locale: ITALY");
      
    nf = java.text.NumberFormat.getCurrencyInstance(Locale.ITALY);
    harness.check(nf.format(5000.25), "€ 5.000,25");
	  
    java.text.DecimalFormatSymbols symbols
      = ((DecimalFormat)nf).getDecimalFormatSymbols();
    
    harness.check(',', symbols.getDecimalSeparator());
    harness.check(',', symbols.getMonetaryDecimalSeparator());
    harness.check('.', symbols.getGroupingSeparator());
  }
}