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// Tags: JDK1.1
// Copyright (C) 2004 David Gilbert <david.gilbert@object-refinery.com>
// 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.math.BigInteger;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
import java.math.BigInteger;
/**
* Some checks for the compareTo() method in the {@link BigInteger} class.
*/
public class compareTo implements Testlet
{
/**
* Runs the test using the specified harness.
*
* @param harness the test harness (<code>null</code> not permitted).
*/
public void test(TestHarness harness)
{
BigInteger a = new BigInteger("-987654321098765432109876543210");
BigInteger b = new BigInteger("-1");
BigInteger c = new BigInteger("0");
BigInteger d = new BigInteger("1");
BigInteger e = new BigInteger("987654321098765432109876543210");
harness.check(a.compareTo(a) == 0);
harness.check(a.compareTo(b) < 0);
harness.check(a.compareTo(c) < 0);
harness.check(a.compareTo(d) < 0);
harness.check(a.compareTo(e) < 0);
harness.check(b.compareTo(a) > 0);
harness.check(b.compareTo(b) == 0);
harness.check(b.compareTo(c) < 0);
harness.check(b.compareTo(d) < 0);
harness.check(b.compareTo(e) < 0);
harness.check(c.compareTo(a) > 0);
harness.check(c.compareTo(b) > 0);
harness.check(c.compareTo(c) == 0);
harness.check(c.compareTo(d) < 0);
harness.check(c.compareTo(e) < 0);
harness.check(d.compareTo(a) > 0);
harness.check(d.compareTo(b) > 0);
harness.check(d.compareTo(c) > 0);
harness.check(d.compareTo(d) == 0);
harness.check(d.compareTo(e) < 0);
harness.check(e.compareTo(a) > 0);
harness.check(e.compareTo(b) > 0);
harness.check(e.compareTo(c) > 0);
harness.check(e.compareTo(d) > 0);
harness.check(e.compareTo(e) == 0);
// try the compareTo(Object) method
boolean pass = false;
try
{
((Comparable)a).compareTo(new Integer(1));
}
catch (ClassCastException ee)
{
pass = true;
}
harness.check(pass);
// try a null argument
pass = false;
try
{
a.compareTo(null);
}
catch (NullPointerException ee)
{
pass = true;
}
harness.check(pass);
}
}
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