/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.sanselan.common;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import org.apache.sanselan.SanselanTest;
import org.apache.sanselan.util.Debug;
public class RationalNumberTest extends SanselanTest
{
// public RationalNumberTest()
// {
// super("Rational Number Test");
// }
public void test()
{
double testValues[] = {
0, //
0.1, //
0.01, //
0.001, //
0.0001, //
0.00001, //
0.000001, //
0.0000001, //
0.123456789, //
1, //
0.9, //
1.1, //
2.0, //
123.123, //
123123123.123, //
(double) 123 / 45678, //
(double) 12 / 34, //
(double) 1 / 2, //
(double) 1 / 3, //
(double) 1 / 4, //
(double) 1 / 5, //
(double) 1 / 6, //
(double) 1 / 7, //
(double) 1 / 8, //
(double) 1 / 9, //
(double) 3 / 2, //
(double) 2 / 3, //
(double) 3 / 4, //
(double) 4 / 5, //
(double) 5 / 6, //
(double) 6 / 7, //
(double) 7 / 8, //
(double) 8 / 9, //
(double) 3 / 5, //
(double) 3 / 6, //
(double) 3 / 7, //
(double) 3 / 8, //
(double) 3 / 9, //
-0.1, //
-0.01, //
-0.001, //
-0.0001, //
-0.00001, //
-0.000001, //
-0.0000001, //
-0.123456789, //
-1, //
-0.9, //
-1.1, //
-2.0, //
-123.123, //
-123123123.123, //
34, //
Integer.MAX_VALUE, //
Integer.MAX_VALUE + 0.1, //
Integer.MAX_VALUE - 0.1, //
-(Integer.MAX_VALUE ), //
-(Integer.MAX_VALUE + 0.1), //
-(Integer.MAX_VALUE - 0.1), //
Long.MAX_VALUE, //
Long.MAX_VALUE + 0.1, //
Long.MAX_VALUE - 0.1, //
-(Long.MAX_VALUE ), //
-(Long.MAX_VALUE + 0.1), //
-(Long.MAX_VALUE - 0.1), //
};
for (int i = 0; i < testValues.length; i++)
{
double value = testValues[i];
RationalNumber rational = RationalNumberUtilities
.getRationalNumber(value);
double difference = Math.abs(value - rational.doubleValue());
NumberFormat nf = DecimalFormat.getInstance();
nf.setMaximumFractionDigits(15);
Debug.debug("value", nf.format(value));
Debug.debug("rational", rational);
Debug.debug("difference", difference);
Debug.debug();
}
}
}