public void testItShouldReportValenceTwoForAPrimaryDoubleBondTerminal() {
Molecule molecule = new DefaultMolecule();
Atom c1 = molecule.addAtom("C");
Atom c2 = molecule.addAtom("C");
molecule.connect(c1, c2, 2);
assertEquals(2, c1.getValence());
}
public void testItShouldReportValenceFourForAQuaternaryCarbon() {
Molecule molecule = new DefaultMolecule();
Atom c1 = molecule.addAtom("C");
Atom c2 = molecule.addAtom("C");
Atom c3 = molecule.addAtom("C");
Atom c4 = molecule.addAtom("C");
Atom c5 = molecule.addAtom("C");
molecule.connect(c1, c2, 1);
molecule.connect(c1, c3, 1);
molecule.connect(c1, c4, 1);
molecule.connect(c1, c5, 1);
assertEquals(4, c1.getValence());
}
