def test_precedence(self):
# (False and False) or True == True <- we want this one, like Python
# False and (False or True) == False
self.assertCalcEqual(True, [False, 'and', False, 'or', True])
# True or (False and False) == True <- we want this one, like Python
# (True or False) and False == False
self.assertCalcEqual(True, [True, 'or', False, 'and', False])
# (1 or 1) == 2 -> False
# 1 or (1 == 2) -> True <- we want this one
self.assertCalcEqual(True, [1, 'or', 1, '==', 2])
self.assertCalcEqual(True, [True, '==', True, 'or', True, '==', False])
self.assertEqual("(or (and (== (literal 1) (literal 2)) (literal 3)) (literal 4))",
repr(IfParser([1, '==', 2, 'and', 3, 'or', 4]).parse()))
def test_or(self):
var = IfParser([True, "or", False]).parse()
self.assertEqual("(or (literal True) (literal False))", repr(var))
self.assert_(var.eval({}))
def test_not(self):
var = IfParser(["not", False]).parse()
self.assertEqual("(not (literal False))", repr(var))
self.assert_(var.eval({}))
self.assertFalse(IfParser(["not", True]).parse().eval({}))
def assertCalcEqual(self, expected, tokens):
self.assertEqual(expected, IfParser(tokens).parse().eval({}))
def test_or(self):
var = IfParser([True, "or", False]).parse()
self.assertEqual("(or (literal True) (literal False))", repr(var))
self.assert_(var.eval({}))
def test_not(self):
var = IfParser(["not", False]).parse()
self.assertEqual("(not (literal False))", repr(var))
self.assert_(var.eval({}))
self.assertFalse(IfParser(["not", True]).parse().eval({}))