/** Test factory and toString. */
public void testFactory() {
RingFactory<BigRational> z = new BigRational(0);
JLAdapterFactory<BigRational> fac = new JLAdapterFactory<BigRational>(z);
// System.out.println("fac = " + fac);
JLAdapter<BigRational> a = fac.zero();
// System.out.println("a = " + a);
assertTrue("isZero( a )", a.isZero());
JLAdapter<BigRational> b = fac.one();
// System.out.println("b = " + b);
assertTrue("isOne( b )", b.isOne());
}
/** Test constructor and toString. */
public void testConstruction() {
BigRational z = new BigRational(0);
JLAdapter<BigRational> a = new JLAdapter<BigRational>(z);
// System.out.println("a = " + a);
assertTrue("isZero( a )", a.isZero());
BigRational o = new BigRational(1);
JLAdapter<BigRational> b = new JLAdapter<BigRational>(o);
// System.out.println("b = " + b);
assertTrue("isOne( b )", b.isOne());
JLAdapter<BigRational> c = b.subtract(b);
// System.out.println("c = " + c);
assertTrue("isZero( c )", c.isZero());
assertEquals("a == c ", a, c);
c = new JLAdapter<BigRational>(new BigRational(1, 2));
// System.out.println("c = " + c);
assertTrue("!isZero( c )", !c.isZero());
JLAdapter<BigRational> d = c.invert();
// System.out.println("d = " + d);
assertTrue("!isZero( d )", !d.isZero());
assertTrue("isOne( 1/2 * 2 ) ", d.multiply(c).isOne());
JLAdapter<BigRational> e = b.divide(d);
// System.out.println("e = " + e);
assertEquals("1/2 == 1 / (2) ", c, e);
}
