import org.junit.Test;

import static org.junit.Assert.assertEquals;

/**
 * Generic test class for implementing and testing a crude round function
 *                _ _   _               _
 * __      ___ __(_) |_| |_ ___ _ __   | |__  _   _
 * \ \ /\ / / '__| | __| __/ _ \ '_ \  | '_ \| | | |
 *  \ V  V /| |  | | |_| ||  __/ | | | | |_) | |_| |
 *   \_/\_/ |_|  |_|\__|\__\___|_| |_| |_.__/ \__, |
 *                                            |___/
 *  ____                  __     __               _
 * / ___|_   _____ _ __   \ \   / /__   __ _  ___| |
 * \___ \ \ / / _ \ '_ \   \ \ / / _ \ / _` |/ _ \ |
 *  ___) \ V /  __/ | | |   \ V / (_) | (_| |  __/ |
 * |____/ \_/ \___|_| |_|    \_/ \___/ \__, |\___|_|
 *                                     |___/
 * Licensed under the GPLv2 License, Version 2.0 (the "License");
 * Copyright (c) Sven Vogel
 */
public class Aufgabe3 {

    /**
     * Divides the numbers and returns the rounded result
     * @param numerator the numerator
     * @param denominator the denominator
     * @return the rounded result of numerator / denominator
     */
    private static double rounded(double numerator, double denominator) {
        return Math.floor(numerator / denominator + 0.5);
    }

    @Test
    public void testRoundUp() {
        assertEquals(3.0, Aufgabe3.rounded(14.0, 5.0), 0.0);
    }

    @Test
    public void testRoundDown() {
        assertEquals(3.0, Aufgabe3.rounded(16.0, 5.0), 0.0);
    }
    @Test
    public void testExact() {
        assertEquals(3.0, Aufgabe3.rounded(18.0, 6.0), 0.0);
    }
}