def evaluate_weight(self, src_value: float) -> float:
"""
Evaluate weight of relation.
:param src_value: float-value of source attribute
:return: evaluated weight of relation
"""
return float(safe_eval(self.evaluation.replace('x', str(src_value))))
def test_full():
d = """[
'1',
b'b',
(1 + 2, 1 / 5, 3 ** 8),
{ 'help': {'1', 'x', 1 + 2}, 1 : 'yelp' }
]"""
assert seval.safe_eval(d) == eval(d)
def test_unsafe():
with pytest.raises(ValueError):
seval.safe_eval('pow(2,3)')
def test_sequence(seq):
for t in (list, set, tuple):
assert seval.safe_eval(repr(t(seq))) == eval(repr(t(seq)))
def test_dict():
d = {'a': 1, 'a b c': 2, 1: 'a'}
assert seval.safe_eval(repr(d)) == d
def test_literal(literal):
assert seval.safe_eval(literal) == eval(literal)
def test_expression(exp):
assert seval.safe_eval(exp) == eval(exp)
def test_binary(op):
l = _get_random_digit()
r = _get_random_digit(non_zero=True)
exp = _get_binary(op, l, r)
assert seval.safe_eval(exp) == eval(exp)
def test_unary(op):
d = _get_random_digit()
exp = _get_unary(op, d)
assert seval.safe_eval(exp) == eval(exp)
def test_num(number):
assert seval.safe_eval(str(number)) == eval(number)