| /* |
| * 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.commons.math4.legacy.ode.nonstiff; |
| |
| import org.apache.commons.math4.legacy.field.ExtendedFieldElementAbstractTest; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class Decimal64Test extends ExtendedFieldElementAbstractTest<Decimal64> { |
| public static final double X = 1.2345; |
| |
| public static final Decimal64 PLUS_X = new Decimal64(X); |
| |
| public static final Decimal64 MINUS_X = new Decimal64(-X); |
| |
| public static final double Y = 6.789; |
| |
| public static final Decimal64 PLUS_Y = new Decimal64(Y); |
| |
| public static final Decimal64 MINUS_Y = new Decimal64(-Y); |
| |
| public static final Decimal64 PLUS_ZERO = new Decimal64(0.0); |
| |
| public static final Decimal64 MINUS_ZERO = new Decimal64(-0.0); |
| |
| @Override |
| protected Decimal64 build(final double x) { |
| return new Decimal64(x); |
| } |
| |
| @Test |
| public void testAdd() { |
| Decimal64 expected; |
| Decimal64 actual; |
| |
| expected = new Decimal64(X + Y); |
| actual = PLUS_X.add(PLUS_Y); |
| Assert.assertEquals(expected, actual); |
| actual = PLUS_Y.add(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| |
| expected = new Decimal64(X + (-Y)); |
| actual = PLUS_X.add(MINUS_Y); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_Y.add(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| |
| expected = new Decimal64((-X) + (-Y)); |
| actual = MINUS_X.add(MINUS_Y); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_Y.add(MINUS_X); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.POSITIVE_INFINITY; |
| actual = PLUS_X.add(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.POSITIVE_INFINITY.add(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_X.add(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.POSITIVE_INFINITY.add(MINUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.POSITIVE_INFINITY.add(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.NEGATIVE_INFINITY; |
| actual = PLUS_X.add(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY.add(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY.add(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_X.add(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY.add(MINUS_X); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.NAN; |
| actual = Decimal64.POSITIVE_INFINITY.add(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY.add(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = PLUS_X.add(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.add(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_X.add(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.add(MINUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.POSITIVE_INFINITY.add(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.add(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY.add(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.add(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.add(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| } |
| |
| @Test |
| public void testSubtract() { |
| Decimal64 expected; |
| Decimal64 actual; |
| |
| expected = new Decimal64(X - Y); |
| actual = PLUS_X.subtract(PLUS_Y); |
| Assert.assertEquals(expected, actual); |
| |
| expected = new Decimal64(X - (-Y)); |
| actual = PLUS_X.subtract(MINUS_Y); |
| Assert.assertEquals(expected, actual); |
| |
| expected = new Decimal64((-X) - Y); |
| actual = MINUS_X.subtract(PLUS_Y); |
| Assert.assertEquals(expected, actual); |
| |
| expected = new Decimal64((-X) - (-Y)); |
| actual = MINUS_X.subtract(MINUS_Y); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.NEGATIVE_INFINITY; |
| actual = PLUS_X.subtract(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_X.subtract(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY |
| .subtract(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.POSITIVE_INFINITY; |
| actual = PLUS_X.subtract(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_X.subtract(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.POSITIVE_INFINITY |
| .subtract(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.NAN; |
| actual = Decimal64.POSITIVE_INFINITY |
| .subtract(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY |
| .subtract(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = PLUS_X.subtract(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.subtract(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_X.subtract(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.subtract(MINUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.POSITIVE_INFINITY.subtract(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.subtract(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY.subtract(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.subtract(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.subtract(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| } |
| |
| @Test |
| public void testNegate() { |
| Decimal64 expected; |
| Decimal64 actual; |
| |
| expected = MINUS_X; |
| actual = PLUS_X.negate(); |
| Assert.assertEquals(expected, actual); |
| |
| expected = PLUS_X; |
| actual = MINUS_X.negate(); |
| Assert.assertEquals(expected, actual); |
| |
| expected = MINUS_ZERO; |
| actual = PLUS_ZERO.negate(); |
| Assert.assertEquals(expected, actual); |
| |
| expected = PLUS_ZERO; |
| actual = MINUS_ZERO.negate(); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.POSITIVE_INFINITY; |
| actual = Decimal64.NEGATIVE_INFINITY.negate(); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.NEGATIVE_INFINITY; |
| actual = Decimal64.POSITIVE_INFINITY.negate(); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.NAN; |
| actual = Decimal64.NAN.negate(); |
| Assert.assertEquals(expected, actual); |
| } |
| |
| @Test |
| public void testMultiply() { |
| Decimal64 expected; |
| Decimal64 actual; |
| |
| expected = new Decimal64(X * Y); |
| actual = PLUS_X.multiply(PLUS_Y); |
| Assert.assertEquals(expected, actual); |
| actual = PLUS_Y.multiply(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| |
| expected = new Decimal64(X * (-Y)); |
| actual = PLUS_X.multiply(MINUS_Y); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_Y.multiply(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| |
| expected = new Decimal64((-X) * (-Y)); |
| actual = MINUS_X.multiply(MINUS_Y); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_Y.multiply(MINUS_X); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.POSITIVE_INFINITY; |
| actual = PLUS_X.multiply(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.POSITIVE_INFINITY.multiply(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_X.multiply(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY.multiply(MINUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.POSITIVE_INFINITY |
| .multiply(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY |
| .multiply(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.NEGATIVE_INFINITY; |
| actual = PLUS_X.multiply(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY.multiply(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_X.multiply(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.POSITIVE_INFINITY.multiply(MINUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.POSITIVE_INFINITY |
| .multiply(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY |
| .multiply(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.NAN; |
| actual = PLUS_X.multiply(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.multiply(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_X.multiply(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.multiply(MINUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.POSITIVE_INFINITY.multiply(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.multiply(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY.multiply(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.multiply(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.multiply(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| } |
| |
| @Test |
| public void testDivide() { |
| Decimal64 expected; |
| Decimal64 actual; |
| |
| expected = new Decimal64(X / Y); |
| actual = PLUS_X.divide(PLUS_Y); |
| Assert.assertEquals(expected, actual); |
| |
| expected = new Decimal64(X / (-Y)); |
| actual = PLUS_X.divide(MINUS_Y); |
| Assert.assertEquals(expected, actual); |
| |
| expected = new Decimal64((-X) / Y); |
| actual = MINUS_X.divide(PLUS_Y); |
| Assert.assertEquals(expected, actual); |
| |
| expected = new Decimal64((-X) / (-Y)); |
| actual = MINUS_X.divide(MINUS_Y); |
| Assert.assertEquals(expected, actual); |
| |
| expected = PLUS_ZERO; |
| actual = PLUS_X.divide(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_X.divide(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| |
| expected = MINUS_ZERO; |
| actual = MINUS_X.divide(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = PLUS_X.divide(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.POSITIVE_INFINITY; |
| actual = Decimal64.POSITIVE_INFINITY.divide(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY.divide(MINUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = PLUS_X.divide(PLUS_ZERO); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_X.divide(MINUS_ZERO); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.NEGATIVE_INFINITY; |
| actual = Decimal64.POSITIVE_INFINITY.divide(MINUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY.divide(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = PLUS_X.divide(MINUS_ZERO); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_X.divide(PLUS_ZERO); |
| Assert.assertEquals(expected, actual); |
| |
| expected = Decimal64.NAN; |
| actual = Decimal64.POSITIVE_INFINITY |
| .divide(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.POSITIVE_INFINITY |
| .divide(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY |
| .divide(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY |
| .divide(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = PLUS_X.divide(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.divide(PLUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_X.divide(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.divide(MINUS_X); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.POSITIVE_INFINITY.divide(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.divide(Decimal64.POSITIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NEGATIVE_INFINITY.divide(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.divide(Decimal64.NEGATIVE_INFINITY); |
| Assert.assertEquals(expected, actual); |
| actual = Decimal64.NAN.divide(Decimal64.NAN); |
| Assert.assertEquals(expected, actual); |
| actual = PLUS_ZERO.divide(PLUS_ZERO); |
| Assert.assertEquals(expected, actual); |
| actual = PLUS_ZERO.divide(MINUS_ZERO); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_ZERO.divide(PLUS_ZERO); |
| Assert.assertEquals(expected, actual); |
| actual = MINUS_ZERO.divide(MINUS_ZERO); |
| Assert.assertEquals(expected, actual); |
| } |
| |
| @Test |
| public void testReciprocal() { |
| Decimal64 expected; |
| Decimal64 actual; |
| |
| expected = new Decimal64(1.0 / X); |
| actual = PLUS_X.reciprocal(); |
| Assert.assertEquals(expected, actual); |
| |
| expected = new Decimal64(1.0 / (-X)); |
| actual = MINUS_X.reciprocal(); |
| Assert.assertEquals(expected, actual); |
| |
| expected = PLUS_ZERO; |
| actual = Decimal64.POSITIVE_INFINITY.reciprocal(); |
| Assert.assertEquals(expected, actual); |
| |
| expected = MINUS_ZERO; |
| actual = Decimal64.NEGATIVE_INFINITY.reciprocal(); |
| Assert.assertEquals(expected, actual); |
| } |
| |
| @Test |
| public void testIsInfinite() { |
| Assert.assertFalse(MINUS_X.isInfinite()); |
| Assert.assertFalse(PLUS_X.isInfinite()); |
| Assert.assertFalse(MINUS_Y.isInfinite()); |
| Assert.assertFalse(PLUS_Y.isInfinite()); |
| Assert.assertFalse(Decimal64.NAN.isInfinite()); |
| |
| Assert.assertTrue(Decimal64.NEGATIVE_INFINITY.isInfinite()); |
| Assert.assertTrue(Decimal64.POSITIVE_INFINITY.isInfinite()); |
| } |
| |
| @Test |
| public void testIsNaN() { |
| Assert.assertFalse(MINUS_X.isNaN()); |
| Assert.assertFalse(PLUS_X.isNaN()); |
| Assert.assertFalse(MINUS_Y.isNaN()); |
| Assert.assertFalse(PLUS_Y.isNaN()); |
| Assert.assertFalse(Decimal64.NEGATIVE_INFINITY.isNaN()); |
| Assert.assertFalse(Decimal64.POSITIVE_INFINITY.isNaN()); |
| |
| Assert.assertTrue(Decimal64.NAN.isNaN()); |
| } |
| } |