def test_iff(self): iffspec = iff(sptrue(), spfalse()) self.assertEqual(iffspec.type, parser.IFF) self.assertIsNotNone(iffspec.car) self.assertIsNotNone(iffspec.cdr) with self.assertRaises(ValueError): iffspec = iff(sptrue(), None)
def ast_to_spec(ast): """ Return a PyNuSMV specification representing `ast`. :param ast: an AST-based CTL formula :return: a PyNuSMV specification representing `ast` :rtype: :class:`pynusmv.prop.Spec` :raise: a :exc:`NotImplementedError` if an operator is not implemented """ if isinstance(ast, TrueExp): return true() elif isinstance(ast, FalseExp): return false() elif isinstance(ast, Atom): return atom(ast.value) elif isinstance(ast, Not): return not_(ast_to_spec(ast.child)) elif isinstance(ast, And): return and_(ast_to_spec(ast.left), ast_to_spec(ast.right)) elif isinstance(ast, Or): return or_(ast_to_spec(ast.left), ast_to_spec(ast.right)) elif isinstance(ast, Imply): return imply(ast_to_spec(ast.left), ast_to_spec(ast.right)) elif isinstance(ast, Iff): return iff(ast_to_spec(ast.left), ast_to_spec(ast.right)) elif isinstance(ast, AX): return ax(ast_to_spec(ast.child)) elif isinstance(ast, AF): return af(ast_to_spec(ast.child)) elif isinstance(ast, AG): return ag(ast_to_spec(ast.child)) elif isinstance(ast, AU): return au(ast_to_spec(ast.left), ast_to_spec(ast.right)) elif isinstance(ast, AW): return aw(ast_to_spec(ast.left), ast_to_spec(ast.right)) elif isinstance(ast, EX): return ex(ast_to_spec(ast.child)) elif isinstance(ast, EF): return ef(ast_to_spec(ast.child)) elif isinstance(ast, EG): return eg(ast_to_spec(ast.child)) elif isinstance(ast, EU): return eu(ast_to_spec(ast.left), ast_to_spec(ast.right)) elif isinstance(ast, EW): return ew(ast_to_spec(ast.left), ast_to_spec(ast.right)) # A(phi oU psi) <=> A(phi U (phi & psi)) elif isinstance(ast, AoU): return au(ast_to_spec(ast.left), and_(ast_to_spec(ast.left), ast_to_spec(ast.right))) # A(phi oW psi) <=> A(phi W (phi & psi)) elif isinstance(ast, AoW): return aw(ast_to_spec(ast.left), and_(ast_to_spec(ast.left), ast_to_spec(ast.right))) # A(phi dU psi) <=> A(phi U (!phi & psi)) elif isinstance(ast, AdU): return au(ast_to_spec(ast.left), and_(not_(ast_to_spec(ast.left)), ast_to_spec(ast.right))) # A(phi dW psi) <=> A(phi W (!phi & psi)) elif isinstance(ast, AdW): return aw(ast_to_spec(ast.left), and_(not_(ast_to_spec(ast.left)), ast_to_spec(ast.right))) # E(phi oU psi) <=> E(phi U (phi & psi)) elif isinstance(ast, EoU): return eu(ast_to_spec(ast.left), and_(ast_to_spec(ast.left), ast_to_spec(ast.right))) # E(phi oW psi) <=> E(phi W (phi & psi)) elif isinstance(ast, EoW): return ew(ast_to_spec(ast.left), and_(ast_to_spec(ast.left), ast_to_spec(ast.right))) # E(phi dU psi) <=> E(phi U (!phi & psi)) elif isinstance(ast, EdU): return eu(ast_to_spec(ast.left), and_(not_(ast_to_spec(ast.left)), ast_to_spec(ast.right))) # E(phi dW psi) <=> E(phi W (!phi & psi)) elif isinstance(ast, EdW): return ew(ast_to_spec(ast.left), and_(not_(ast_to_spec(ast.left)), ast_to_spec(ast.right))) else: raise NotImplementedError(NOT_IMPLEMENTED_MSG.format(op=type(ast)))
def test_iff(self): iffspec = iff(sptrue(), spfalse()) self.assertEqual(iffspec.type, parser.IFF) self.assertIsNotNone(iffspec.car) self.assertIsNotNone(iffspec.cdr)