001/* 002 * $Id: GBProxyTest.java 5104 2015-02-07 13:12:43Z kredel $ 003 */ 004 005package edu.jas.gb; 006 007 008import java.io.IOException; 009import java.io.Reader; 010import java.io.StringReader; 011import java.util.ArrayList; 012import java.util.List; 013 014import junit.framework.Test; 015import junit.framework.TestCase; 016import junit.framework.TestSuite; 017 018import org.apache.log4j.BasicConfigurator; 019import org.apache.log4j.Logger; 020 021import edu.jas.arith.BigRational; 022import edu.jas.kern.ComputerThreads; 023import edu.jas.poly.GenPolynomial; 024import edu.jas.poly.GenPolynomialRing; 025import edu.jas.poly.GenPolynomialTokenizer; 026import edu.jas.poly.PolynomialList; 027 028 029/** 030 * Groebner base proxy of sequential and parallel tests with JUnit. 031 * @author Heinz Kredel. 032 */ 033 034public class GBProxyTest extends TestCase { 035 036 037 private static final Logger logger = Logger.getLogger(GBProxyTest.class); 038 039 040 /** 041 * main 042 */ 043 public static void main(String[] args) { 044 BasicConfigurator.configure(); 045 junit.textui.TestRunner.run(suite()); 046 ComputerThreads.terminate(); 047 } 048 049 050 /** 051 * Constructs a <CODE>GBProxyTest</CODE> object. 052 * @param name String. 053 */ 054 public GBProxyTest(String name) { 055 super(name); 056 } 057 058 059 /** 060 * suite. 061 */ 062 public static Test suite() { 063 TestSuite suite = new TestSuite(GBProxyTest.class); 064 return suite; 065 } 066 067 068 GenPolynomialRing<BigRational> fac; 069 070 071 List<GenPolynomial<BigRational>> L; 072 073 074 PolynomialList<BigRational> F; 075 076 077 List<GenPolynomial<BigRational>> G; 078 079 080 GroebnerBaseAbstract<BigRational> bb; 081 082 083 GenPolynomial<BigRational> a, b, c, d, e; 084 085 086 int rl = 3; //4; //3; 087 088 089 int kl = 7; 090 091 092 int ll = 7; 093 094 095 int el = 3; 096 097 098 float q = 0.2f; //0.4f 099 100 101 @Override 102 protected void setUp() { 103 BigRational coeff = new BigRational(9); 104 fac = new GenPolynomialRing<BigRational>(coeff, rl); 105 a = b = c = d = e = null; 106 GroebnerBaseAbstract<BigRational> bbs = new GroebnerBaseSeq<BigRational>(); 107 //GroebnerBaseAbstract<BigRational> bbs = new GroebnerBaseSeqPairSeq<BigRational>(); 108 int nt = ComputerThreads.N_CPUS - 1; 109 //System.out.println("nt = " + nt); 110 GroebnerBaseAbstract<BigRational> bbp = new GroebnerBaseParallel<BigRational>(nt); 111 //GroebnerBaseAbstract<BigRational> bbp = new GroebnerBaseSeqPairParallel<BigRational>(nt); 112 bb = new GBProxy<BigRational>(bbs, bbp); 113 } 114 115 116 @Override 117 protected void tearDown() { 118 int s = bb.cancel(); 119 logger.info("canceled tasks: " + s); 120 //assertTrue("s >= 0 " + s, s >= 0); 121 bb.terminate(); 122 a = b = c = d = e = null; 123 fac = null; 124 bb = null; 125 } 126 127 128 /** 129 * Test GBase. 130 */ 131 public void testGBase() { 132 L = new ArrayList<GenPolynomial<BigRational>>(); 133 134 a = fac.random(kl, ll, el, q); 135 b = fac.random(kl, ll, el, q); 136 c = fac.random(kl, ll, el, q); 137 d = fac.random(kl, ll, el, q); 138 e = d; //fac.random(kl, ll, el, q ); 139 140 141 L.add(a); 142 L = bb.GB(L); 143 assertTrue("isGB( { a } )", bb.isGB(L)); 144 145 L.add(b); 146 //System.out.println("L = " + L.size() ); 147 L = bb.GB(L); 148 assertTrue("isGB( { a, b } )", bb.isGB(L)); 149 150 L.add(c); 151 L = bb.GB(L); 152 assertTrue("isGB( { a, b, c } )", bb.isGB(L)); 153 154 L.add(d); 155 L = bb.GB(L); 156 assertTrue("isGB( { a, b, c, d } )", bb.isGB(L)); 157 158 L.add(e); 159 L = bb.GB(L); 160 assertTrue("isGB( { a, b, c, d, e } )", bb.isGB(L)); 161 } 162 163 164 /** 165 * Test Trinks7 GBase. 166 */ 167 @SuppressWarnings({ "cast", "unchecked" }) 168 public void testTrinks7GBase() { 169 String exam = "(B,S,T,Z,P,W) L " + "( " + "( 45 P + 35 S - 165 B - 36 ), " 170 + "( 35 P + 40 Z + 25 T - 27 S ), " + "( 15 W + 25 S P + 30 Z - 18 T - 165 B**2 ), " 171 + "( - 9 W + 15 T P + 20 S Z ), " + "( P W + 2 T Z - 11 B**3 ), " 172 + "( 99 W - 11 B S + 3 B**2 ), " + "( B**2 + 33/50 B + 2673/10000 ) " + ") "; 173 Reader source = new StringReader(exam); 174 GenPolynomialTokenizer parser = new GenPolynomialTokenizer(source); 175 try { 176 F = (PolynomialList<BigRational>) parser.nextPolynomialSet(); 177 } catch (ClassCastException e) { 178 fail("" + e); 179 } catch (IOException e) { 180 fail("" + e); 181 } 182 //System.out.println("F = " + F); 183 184 G = bb.GB(F.list); 185 assertEquals("#GB(Trinks7) == 6", 6, G.size()); 186 assertTrue("isGB( GB(Trinks7) ) " + G, bb.isGB(G)); 187 //PolynomialList<BigRational> trinks = new PolynomialList<BigRational>(F.ring, G); 188 //System.out.println("G = " + trinks); 189 } 190 191}