File: toPattern.java

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// Tags: JDK1.2

// Copyright (c) 1999  Cygnus Solutions
// Written by Tom Tromey <tromey@cygnus.com>
// Copyright (C) 2005 David Gilbert <david.gilbert@object-refinery.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.

package gnu.testlet.java.text.DecimalFormat;

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

import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.util.Locale;

/**
 * Some checks for the toPattern() method in the {@link DecimalFormat} class.
 */
public class toPattern implements Testlet 
{

  /**
   * Runs the test using the specified harness.
   * 
   * @param harness  the test harness (<code>null</code> not permitted).
   */
  public void test(TestHarness harness) 
  {
    // we have two test methods now, following the merge of
    // topattern.java into this file
    test1(harness);
    test2(harness);
  }
  
  /**
   * This test was formerly in the file topattern.java.
   * 
   * @param harness  the test harness.
   */
  public void test1(TestHarness harness)
    {
      // Just to be explicit: we're only testing the US locale here.
      Locale loc = Locale.US;
      Locale.setDefault (loc);

      // There aren't really many tests we can do, since it doesn't
      // seem like any canonical output format is documented.

      DecimalFormat df = new DecimalFormat ("0.##");
      harness.check (df.toPattern (), "#0.##");
      harness.check (df.toLocalizedPattern (), "#0.##");
      
      DecimalFormatSymbols dfs = df.getDecimalFormatSymbols ();
      dfs.setDecimalSeparator (',');
      dfs.setZeroDigit ('1');
      dfs.setDigit ('X');
      dfs.setGroupingSeparator ('!');
      df.setDecimalFormatSymbols(dfs);   // dfs is only a copy of the internal 
                                         // symbols so pass symbols back to df
      harness.check (df.toLocalizedPattern (), "X1,XX");

      df.applyPattern ("Fr #,##0.##");
      String x1 = df.toPattern ();
      String x2 = df.toLocalizedPattern ();
      harness.check (x1.length (), x2.length ());
      boolean ok = x1.length () == x2.length ();
      for (int i = 0; i < x1.length (); ++i)
    {
      char c = x1.charAt(i);
      if (c == '0')
        c = '1';
      else if (c == '#')
        c = 'X';
      else if (c == '.')
        c = ',';
      else if (c == ',')
        c = '!';
      if (c != x2.charAt (i))
        {
          ok = false;
          harness.debug ("failure at char " + i);
          harness.debug ("x1 = " + x1 + "\nx2 = " + x2);
          break;
        }
    }
    harness.check (ok);
  }

  public void test2(TestHarness harness)  
  {
    DecimalFormat f1 = new DecimalFormat("#0.00;(#0.00)");
    harness.check(f1.toPattern(), "#0.00;(#0.00)");
  }

}