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// Test of the method BigDecimal.divideMathContext()
// Copyright 2012 Red Hat, Inc.
// Written by Pavel Tisnovsky <ptisnovs@redhat.com>
// This program 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 of the License, or
// (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software Foundation
// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA
//
// Tags: JDK1.5
package gnu.testlet.java.math.BigDecimal;
import java.math.BigDecimal;
import java.math.MathContext;
import gnu.testlet.Testlet;
import gnu.testlet.TestHarness;
/**
* Check for method BigDecimal.divideMathContext()
*/
public class divideMathContext implements Testlet
{
public void test (TestHarness harness)
{
BigDecimal a = new BigDecimal("0");
BigDecimal b = a;
BigDecimal result;
harness.checkPoint("basic tests");
a = new BigDecimal("10");
b = new BigDecimal("2");
result = new BigDecimal("5");
harness.check(a.divide(b, new MathContext(0)), result);
a = a.negate();
b = b.negate();
result = new BigDecimal("5");
harness.check(a.divide(b, new MathContext(0)), result);
b = b.negate();
result = new BigDecimal("-5");
harness.check(a.divide(b, new MathContext(0)), result);
harness.checkPoint("rounding to one");
a = new BigDecimal("1000000000000000000");
b = new BigDecimal("1000000000000000000");
result = new BigDecimal("1");
harness.check(a.divide(b, new MathContext(0)), result);
a = a.negate();
b = b.negate();
result = new BigDecimal("1");
harness.check(a.divide(b, new MathContext(0)), result);
b = b.negate();
result = new BigDecimal("-1");
harness.check(a.divide(b, new MathContext(0)), result);
harness.checkPoint("rounding to zero");
a = new BigDecimal("10");
b = new BigDecimal("20");
result = new BigDecimal("0.5");
harness.check(a.divide(b, new MathContext(0)), result);
a = a.negate();
b = b.negate();
result = new BigDecimal("0.5");
harness.check(a.divide(b, new MathContext(0)), result);
b = b.negate();
result = new BigDecimal("-0.5");
harness.check(a.divide(b, new MathContext(0)), result);
harness.checkPoint("rounding with division");
a = new BigDecimal("20.9");
b = new BigDecimal("10.1");
result = new BigDecimal("2");
try {
a.divide(b, new MathContext(0));
harness.fail("ArithmeticException not thrown as expected");
}
catch (ArithmeticException e) {
// ok
}
harness.checkPoint("rounding with division ");
a = new BigDecimal("20.1");
b = new BigDecimal("10.9");
result = new BigDecimal("2");
try {
a.divide(b, new MathContext(0));
harness.fail("ArithmeticException not thrown as expected");
}
catch (ArithmeticException e) {
// ok
}
harness.checkPoint("rounding with division ");
a = new BigDecimal("20.000000000000000000001");
b = new BigDecimal("10.000000000000000000001");
result = new BigDecimal("2");
try {
a.divide(b, new MathContext(0));
harness.fail("ArithmeticException not thrown as expected");
}
catch (ArithmeticException e) {
// ok
}
}
}
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