def test_and(self):
expr = 'x and y'
postfix = list(expression.build_postfix_expression(expr))
assert postfix == ['x', 'y', 'and']
expr = 'x and y and z'
postfix = list(expression.build_postfix_expression(expr))
assert postfix == ['x', 'y', 'and', 'z', 'and']
def test_implicit_or(self):
expr = 'x y'
postfix = list(expression.build_postfix_expression(expr))
assert postfix == ['x', 'y', 'or']
expr = 'x y z'
postfix = list(expression.build_postfix_expression(expr))
assert postfix == ['x', 'y', 'or', 'z', 'or']
expr = '(x y) z'
postfix = list(expression.build_postfix_expression(expr))
assert postfix == ['x', 'y', 'or', 'z', 'or']
expr = 'x (y or z)'
postfix = list(expression.build_postfix_expression(expr))
assert postfix == ['x', 'y', 'z', 'or', 'or']
def test_parens(self):
expr = 'not (x and y)'
postfix = list(expression.build_postfix_expression(expr))
assert postfix == ['x', 'y', 'and', 'not']
def test_precedence(self):
expr = 'not x and y'
postfix = list(expression.build_postfix_expression(expr))
assert postfix == ['x', 'not', 'y', 'and']
def test_payee_at(self):
expr = '@x'
postfix = list(expression.build_postfix_expression(expr))
assert postfix == ['x', '@']
def test_unary_precedence(self):
expr = 'not payee x'
postfix = list(expression.build_postfix_expression(expr))
assert postfix == ['x', 'payee', 'not']
def test_payee(self):
expr = 'payee x'
postfix = list(expression.build_postfix_expression(expr))
assert postfix == ['x', 'payee']
def test_not(self):
expr = 'not x'
postfix = list(expression.build_postfix_expression(expr))
assert postfix == ['x', 'not']
def test_or(self):
expr = 'x or y or z'
postfix = list(expression.build_postfix_expression(expr))
assert postfix == ['x', 'y', 'or', 'z', 'or']