def testPrefixMinusLowPrecedence(self):
query = "-5 * 5"
expected = expression.Product(
expression.Literal(-1),
expression.Product(expression.Literal(5), expression.Literal(5)))
self.assertQueryMatches(query, expected)
def testParens(self):
query = "(3 + 2) * 5"
expected = expression.Product(
expression.Sum(expression.Literal(3), expression.Literal(2)),
expression.Literal(5))
self.assertQueryMatches(query, expected)
def testPrefixMinus(self):
query = "-(5 + 5)"
expected = expression.Product(
expression.Literal(-1),
expression.Sum(expression.Literal(5), expression.Literal(5)))
self.assertQueryMatches(query, expected)
def testPrecedence(self):
query = "5 == 1 * 5 and Process/name is 'init'"
expected = expression.Intersection(
expression.Equivalence(
expression.Literal(5),
expression.Product(expression.Literal(1),
expression.Literal(5))),
expression.Equivalence(expression.Binding("Process/name"),
expression.Literal("init")))
self.assertQueryMatches(query, expected)
def NegateValue(*args, **kwargs):
return expression.Product(
expression.Literal(-1),
*args,
**kwargs)
