001/*
002 * $Id: RGroebnerBasePseudoSeqTest.java 5866 2018-07-20 15:02:16Z kredel $
003 */
004
005package edu.jas.gbufd;
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
018
019import edu.jas.arith.BigInteger;
020import edu.jas.arith.Product;
021import edu.jas.arith.ProductRing;
022import edu.jas.gb.GroebnerBase;
023import edu.jas.poly.GenPolynomial;
024import edu.jas.poly.GenPolynomialRing;
025import edu.jas.poly.GenPolynomialTokenizer;
026import edu.jas.poly.PolyUtil;
027import edu.jas.poly.PolynomialList;
028import edu.jas.structure.RingFactory;
029
030
031/**
032 * R-Groebner base sequential tests with JUnit.
033 * @author Heinz Kredel
034 */
035
036public class RGroebnerBasePseudoSeqTest extends TestCase {
037
038
039    // private static final Logger logger =
040
041    /**
042     * main
043     */
044    public static void main(String[] args) {
045        junit.textui.TestRunner.run(suite());
046        // ComputerThreads.terminate();
047    }
048
049
050    /**
051     * Constructs a <CODE>RGroebnerBasePseudoSeqTest</CODE> object.
052     * @param name String.
053     */
054    public RGroebnerBasePseudoSeqTest(String name) {
055        super(name);
056    }
057
058
059    /**
060     * suite.
061     */
062    public static Test suite() {
063        TestSuite suite = new TestSuite(RGroebnerBasePseudoSeqTest.class);
064        return suite;
065    }
066
067
068    ProductRing<BigInteger> pfac;
069
070
071    GenPolynomialRing<Product<BigInteger>> fac;
072
073
074    List<GenPolynomial<Product<BigInteger>>> L, G;
075
076
077    PolynomialList<Product<BigInteger>> F;
078
079
080    GroebnerBase<Product<BigInteger>> bb;
081
082
083    GenPolynomial<Product<BigInteger>> a, b, c, d, e;
084
085
086    int pl = 3;
087
088
089    int rl = 3; // 4; //3;
090
091
092    int kl = 7; // 10;
093
094
095    int ll = 7;
096
097
098    int el = 3;
099
100
101    float q = 0.3f; // 0.4f
102
103
104    @Override
105    protected void setUp() {
106        BigInteger coeff = new BigInteger(9);
107        pfac = new ProductRing<BigInteger>(coeff, pl);
108        fac = new GenPolynomialRing<Product<BigInteger>>(pfac, rl);
109        a = b = c = d = e = null;
110        bb = new RGroebnerBasePseudoSeq<Product<BigInteger>>(pfac);
111    }
112
113
114    @Override
115    protected void tearDown() {
116        a = b = c = d = e = null;
117        fac = null;
118        bb = null;
119    }
120
121
122    /**
123     * Test sequential GBase.
124     */
125    public void testSequentialGBase() {
126        L = new ArrayList<GenPolynomial<Product<BigInteger>>>();
127
128        a = fac.random(kl, ll, el, q);
129        b = fac.random(kl, ll, el, q);
130        c = fac.random(kl, ll, el, q);
131        d = fac.random(kl, ll, el, q);
132        e = d; // fac.random(kl, ll, el, q );
133
134        if (a.isZERO() || b.isZERO() /* || c.isZERO() || d.isZERO() */) {
135            return;
136        }
137
138        assertTrue("not isZERO( a )", !a.isZERO());
139        L.add(a);
140        // System.out.println("L = " + L );
141
142        L = bb.GB(L);
143        // System.out.println("L = " + L );
144        assertTrue("isGB( { a } )", bb.isGB(L));
145
146        assertTrue("not isZERO( b )", !b.isZERO());
147        L.add(b);
148        // System.out.println("L = " + L );
149
150        L = bb.GB(L);
151        // System.out.println("L = " + L );
152        assertTrue("isGB( { a, b } )", bb.isGB(L));
153
154        // assertTrue("not isZERO( c )", !c.isZERO() );
155        L.add(c);
156        // System.out.println("L = " + L );
157
158        L = bb.GB(L);
159        // System.out.println("L = " + L );
160        assertTrue("isGB( { a, b, c } )", bb.isGB(L));
161
162        // assertTrue("not isZERO( d )", !d.isZERO() );
163        L.add(d);
164        // System.out.println("L = " + L );
165
166        L = bb.GB(L);
167        // System.out.println("L = " + L );
168        assertTrue("isGB( { a, b, c, d } )", bb.isGB(L));
169
170        // assertTrue("not isZERO( e )", !e.isZERO() );
171        L.add(e);
172        // System.out.println("L = " + L );
173
174        L = bb.GB(L);
175        // System.out.println("L = " + L );
176        assertTrue("isGB( { a, b, c, d, e } )", bb.isGB(L));
177    }
178
179
180    /**
181     * Test Trinks7 GBase.
182     */
183    @SuppressWarnings("unchecked")
184    public void testTrinks7() {
185        String exam = "Z(B,S,T,Z,P,W) L " + "( " + "( 45 P + 35 S - 165 B - 36 ), "
186                        + "( 35 P + 40 Z + 25 T - 27 S ), " + "( 15 W + 25 S P + 30 Z - 18 T - 165 B**2 ), "
187                        + "( - 9 W + 15 T P + 20 S Z ), " + "( P W + 2 T Z - 11 B**3 ), "
188                        + "( 99 W - 11 B S + 3 B**2 ), " + "( 10000 B**2 + 6600 B + 2673 ) " + ") ";
189        Reader source = new StringReader(exam);
190        GenPolynomialTokenizer parser = new GenPolynomialTokenizer(source);
191
192        PolynomialList<BigInteger> F = null;
193
194        try {
195            F = (PolynomialList<BigInteger>) parser.nextPolynomialSet();
196        } catch (ClassCastException e) {
197            fail("" + e);
198        } catch (IOException e) {
199            fail("" + e);
200        }
201        // System.out.println("F = " + F);
202        PolynomialList<Product<BigInteger>> trinks;
203
204        List<RingFactory<BigInteger>> colist;
205        colist = new ArrayList<RingFactory<BigInteger>>();
206
207        // colist.add( new BigInteger() );
208        // colist.add( new BigInteger() );
209        // colist.add( new BigInteger() );
210        // colist.add( new BigInteger() );
211        colist.add(new BigInteger());
212        colist.add(new BigInteger());
213        // colist.add( new BigInteger() );
214        // System.out.println("colist = " + colist);
215
216        ProductRing<BigInteger> pfac;
217        pfac = new ProductRing<BigInteger>(colist);
218        // System.out.println("pfac = " + pfac);
219
220        GenPolynomialRing<Product<BigInteger>> fac;
221        fac = new GenPolynomialRing<Product<BigInteger>>(pfac, F.ring);
222        // System.out.println("fac = " + fac);
223
224        List<GenPolynomial<Product<BigInteger>>> Fp = null;
225        Fp = PolyUtil.<BigInteger> toProductGen(fac, F.list);
226
227
228        List<GenPolynomial<Product<BigInteger>>> Fpp;
229        Fpp = new ArrayList<GenPolynomial<Product<BigInteger>>>();
230        for (GenPolynomial<Product<BigInteger>> a : Fp) {
231            Fpp.add(a.multiply(pfac.getAtomic(0)));
232            Fpp.add(a.multiply(pfac.getAtomic(1)));
233            // Fpp.add( a );
234        }
235        Fp = Fpp;
236
237        //trinks = new PolynomialList<Product<BigInteger>>(fac, Fp);
238        // System.out.println("Fp = " + trinks);
239        GroebnerBase<Product<BigInteger>> bbri = new RGroebnerBasePseudoSeq<Product<BigInteger>>(pfac);
240
241        List<GenPolynomial<Product<BigInteger>>> G;
242        G = bbri.GB(Fp);
243        // System.out.println("gb = " + G );
244
245        // assertEquals("#GB(Trinks7) == 6", 6, G.size() );
246        // System.out.println("Fp = " + trinks);
247        trinks = new PolynomialList<Product<BigInteger>>(fac, G);
248        // System.out.println("G = " + trinks);
249        assertFalse("trinks != null", trinks == null);
250
251        assertTrue("isGB( GB(Trinks7) )", bbri.isGB(G));
252    }
253
254
255}