TEST_EQUAL(ef1, "H2");
END_SECTION
START_SECTION(EmpiricalFormula operator - (const EmpiricalFormula& rhs) const)
EmpiricalFormula ef1("C5H12"), ef2("CH12");
EmpiricalFormula ef3, ef4;
ef3 = ef1 - ef2;
cerr << *e_ptr << " " << ef3 << endl;
TEST_EQUAL(*e_ptr == ef3, true)
ef3 = ef3 - EmpiricalFormula("C4H-2");
TEST_EQUAL(ef3, "H2");
END_SECTION
START_SECTION(bool isEmpty() const)
EmpiricalFormula ef;
TEST_EQUAL(ef.isEmpty(), true)
TEST_EQUAL(e_ptr->isEmpty(), false)
END_SECTION
START_SECTION(bool hasElement(const Element* element) const)
const Element* e = db->getElement(6);
TEST_EQUAL(e_ptr->hasElement(e), true)
e = db->getElement(1);
TEST_EQUAL(e_ptr->hasElement(e), false)
END_SECTION
START_SECTION(bool contains(const EmpiricalFormula& ef))
EmpiricalFormula metabolite("C12H36N2");
TEST_EQUAL(metabolite.contains(metabolite), true) // contains itself?
