105 lines
4.0 KiB
Java
105 lines
4.0 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package ch.usi.inf.sdm.sdm04.math;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertThrows;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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import org.junit.jupiter.api.Test;
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/**
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* Unit tests {@link org.apache.commons.lang3.math.IEEE754rUtils}.
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*/
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public class IEEE754rUtilsTest {
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@Test
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public void testConstructorExists() {
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new IEEE754rUtils();
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}
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@Test
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public void testEnforceExceptions() {
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assertThrows(
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NullPointerException.class,
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() -> IEEE754rUtils.min( (float[]) null),
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"IllegalArgumentException expected for null input");
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assertThrows(
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IllegalArgumentException.class,
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IEEE754rUtils::min,
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"IllegalArgumentException expected for empty input");
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assertThrows(
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NullPointerException.class,
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() -> IEEE754rUtils.max( (float[]) null),
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"IllegalArgumentException expected for null input");
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assertThrows(
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IllegalArgumentException.class,
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IEEE754rUtils::max,
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"IllegalArgumentException expected for empty input");
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assertThrows(
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NullPointerException.class,
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() -> IEEE754rUtils.min( (double[]) null),
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"IllegalArgumentException expected for null input");
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assertThrows(
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IllegalArgumentException.class,
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IEEE754rUtils::min,
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"IllegalArgumentException expected for empty input");
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assertThrows(
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NullPointerException.class,
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() -> IEEE754rUtils.max( (double[]) null),
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"IllegalArgumentException expected for null input");
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assertThrows(
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IllegalArgumentException.class,
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IEEE754rUtils::max,
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"IllegalArgumentException expected for empty input");
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}
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@Test
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public void testLang381() {
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assertEquals(1.2, IEEE754rUtils.min(1.2, 2.5, Double.NaN), 0.01);
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assertEquals(2.5, IEEE754rUtils.max(1.2, 2.5, Double.NaN), 0.01);
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assertTrue(Double.isNaN(IEEE754rUtils.max(Double.NaN, Double.NaN, Double.NaN)));
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assertEquals(1.2f, IEEE754rUtils.min(1.2f, 2.5f, Float.NaN), 0.01);
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assertEquals(2.5f, IEEE754rUtils.max(1.2f, 2.5f, Float.NaN), 0.01);
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assertTrue(Float.isNaN(IEEE754rUtils.max(Float.NaN, Float.NaN, Float.NaN)));
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final double[] a = { 1.2, Double.NaN, 3.7, 27.0, 42.0, Double.NaN };
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assertEquals(42.0, IEEE754rUtils.max(a), 0.01);
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assertEquals(1.2, IEEE754rUtils.min(a), 0.01);
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final double[] b = { Double.NaN, 1.2, Double.NaN, 3.7, 27.0, 42.0, Double.NaN };
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assertEquals(42.0, IEEE754rUtils.max(b), 0.01);
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assertEquals(1.2, IEEE754rUtils.min(b), 0.01);
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final float[] aF = { 1.2f, Float.NaN, 3.7f, 27.0f, 42.0f, Float.NaN };
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assertEquals(1.2f, IEEE754rUtils.min(aF), 0.01);
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assertEquals(42.0f, IEEE754rUtils.max(aF), 0.01);
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final float[] bF = { Float.NaN, 1.2f, Float.NaN, 3.7f, 27.0f, 42.0f, Float.NaN };
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assertEquals(1.2f, IEEE754rUtils.min(bF), 0.01);
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assertEquals(42.0f, IEEE754rUtils.max(bF), 0.01);
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}
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}
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