TestVectorUtil.java

/*
 * Artificial Intelligence for Humans
 * Volume 1: Fundamental Algorithms
 * Java Version
 * http://www.aifh.org
 * http://www.jeffheaton.com
 *
 * Code repository:
 * https://github.com/jeffheaton/aifh

 * Copyright 2013 by Jeff Heaton
 *
 * Licensed 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.
 *
 * For more information on Heaton Research copyrights, licenses
 * and trademarks visit:
 * http://www.heatonresearch.com/copyright
 */

package com.heatonresearch.aifh.general;

import com.heatonresearch.aifh.AIFH;
import org.junit.Test;

import java.lang.reflect.Constructor;
import java.lang.reflect.Modifier;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

/**
 * Test the vector utility.
 */
public class TestVectorUtil {
    @Test
    public void testMaxIndex() {
        final double[] a = {2, 4, 10, 8};
        assertEquals(2, VectorUtil.maxIndex(a), AIFH.DEFAULT_PRECISION);
    }

    @Test
    public void testConstructorIsPrivate() throws Exception {
        final Constructor constructor = VectorUtil.class.getDeclaredConstructor();
        assertTrue(Modifier.isPrivate(constructor.getModifiers()));
        constructor.setAccessible(true);
        constructor.newInstance();
    }
}