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import pytest
from wtforms.validators import NoneOf
def test_none_of_passes(dummy_form, dummy_field):
"""
it should pass if the value is not present in list
"""
dummy_field.data = "d"
validator = NoneOf(["a", "b", "c"])
validator(dummy_form, dummy_field)
def test_none_of_raises(dummy_form, dummy_field):
"""
it should raise ValueError if the value is present in list
"""
dummy_field.data = "a"
validator = NoneOf(["a", "b", "c"])
with pytest.raises(ValueError):
validator(dummy_form, dummy_field)
def test_none_of_multiple_values(dummy_form, dummy_field):
"""
the validator should work with multiple values like produced
by SelectMultiple fields
"""
dummy_field.data = ["d", "e"]
validator = NoneOf(["a", "b", "c"])
validator(dummy_form, dummy_field)
dummy_field.data = ["a", "e"]
validator = NoneOf(["a", "b", "c"])
with pytest.raises(ValueError):
validator(dummy_form, dummy_field)
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