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Updated libraries and increased test coverage
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//JavaClasses/src/test/java/mattrixwv/TestSieveOfEratosthenesBig.java
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//Matthew Ellison
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// Created: 04-13-23
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//Modified: 04-13-23
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//This class uses to Sieve of Eratosthenes to generate an infinite number of primes
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/*
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Copyright (C) 2023 Matthew Ellison
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package com.mattrixwv.generators;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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import java.math.BigInteger;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.List;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Test;
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public class TestSieveOfEratostheneseBig{
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private SieveOfEratosthenesBig sieve;
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@BeforeEach
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public void setup(){
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sieve = new SieveOfEratosthenesBig();
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}
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@Test
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public void testConstructor(){
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assertEquals(BigInteger.TWO, sieve.possiblePrime);
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assertEquals(new HashMap<>(), sieve.dict);
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}
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@Test
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public void testHasNext(){
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assertTrue(sieve.hasNext());
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}
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@Test
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public void testNext(){
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List<BigInteger> correctAnswer = Arrays.asList(BigInteger.valueOf(2), BigInteger.valueOf(3), BigInteger.valueOf(5), BigInteger.valueOf(7), BigInteger.valueOf(11), BigInteger.valueOf(13), BigInteger.valueOf(17), BigInteger.valueOf(19), BigInteger.valueOf(23), BigInteger.valueOf(29), BigInteger.valueOf(31), BigInteger.valueOf(37), BigInteger.valueOf(41), BigInteger.valueOf(43), BigInteger.valueOf(47), BigInteger.valueOf(53), BigInteger.valueOf(59), BigInteger.valueOf(61), BigInteger.valueOf(67), BigInteger.valueOf(71), BigInteger.valueOf(73), BigInteger.valueOf(79), BigInteger.valueOf(83), BigInteger.valueOf(89), BigInteger.valueOf(97));
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ArrayList<BigInteger> answer = new ArrayList<>();
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for(int cnt = 0;cnt < 25;++cnt){
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BigInteger prime = sieve.next();
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answer.add(prime);
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}
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assertEquals(correctAnswer, answer);
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}
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}
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