def testAddOperands(self):
"""Tests the AddOperands function."""
expression = expressions.BinaryExpression(operator='and')
left_hand_expression = expressions.Expression()
right_hand_expression = expressions.Expression()
expression.AddOperands(left_hand_expression, right_hand_expression)
with self.assertRaises(errors.ParseError):
expression.AddOperands(None, right_hand_expression)
with self.assertRaises(errors.ParseError):
expression.AddOperands(left_hand_expression, None)
def testAddArgument(self):
"""Tests the AddArgument function."""
expression = expressions.Expression()
expression.AddArgument('argument1')
with self.assertRaises(errors.ParseError):
expression.AddArgument('argument2')
def testSetOperator(self):
"""Tests the SetOperator function."""
expression = expressions.Expression()
expression.SetOperator('==')
def testSetAttribute(self):
"""Tests the SetAttribute function."""
expression = expressions.Expression()
expression.SetAttribute('attribute')