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import pytest
from wtforms.validators import length
from wtforms.validators import ValidationError
@pytest.mark.parametrize("min_v, max_v", [(2, 6), (6, -1), (-1, 6), (6, 6)])
def test_correct_length_passes(min_v, max_v, dummy_form, dummy_field):
"""
It should pass for the string with correct length
"""
dummy_field.data = "foobar"
validator = length(min_v, max_v)
validator(dummy_form, dummy_field)
@pytest.mark.parametrize("min_v, max_v", [(7, -1), (-1, 5)])
def test_bad_length_raises(min_v, max_v, dummy_form, dummy_field):
"""
It should raise ValidationError for string with incorrect length
"""
dummy_field.data = "foobar"
validator = length(min_v, max_v)
with pytest.raises(ValidationError):
validator(dummy_form, dummy_field)
@pytest.mark.parametrize(
"min_v, max_v",
[(-1, -1), (5, 2)], # none of the values is specified # max should be gt min
)
def test_bad_length_init_raises(min_v, max_v):
"""
It should raise AssertionError if the validator constructor got wrong values
"""
with pytest.raises(AssertionError):
length(min_v, max_v)
@pytest.mark.parametrize(
("validator", "message"),
(
(length(2, 5, "%(min)d and %(max)d"), "2 and 5"),
(length(8, -1), "at least 8"),
(length(-1, 5), "longer than 5"),
(length(2, 5), "between 2 and 5"),
(length(5, 5), "exactly 5"),
),
)
def test_length_messages(dummy_form, dummy_field, validator, message):
"""
It should raise ValidationError for string with incorrect length
"""
dummy_field.data = "foobar"
with pytest.raises(ValidationError) as e:
validator(dummy_form, dummy_field)
assert message in str(e.value)
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