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from .between import between
from .utils import validator
@validator
def length(value, min=None, max=None):
"""
Return whether or not the length of given string is within a specified
range.
Examples::
>>> length('something', min=2)
True
>>> length('something', min=9, max=9)
True
>>> length('something', max=5)
ValidationFailure(func=length, ...)
:param value:
The string to validate.
:param min:
The minimum required length of the string. If not provided, minimum
length will not be checked.
:param max:
The maximum length of the string. If not provided, maximum length
will not be checked.
.. versionadded:: 0.2
"""
if (min is not None and min < 0) or (max is not None and max < 0):
raise AssertionError(
'`min` and `max` need to be greater than zero.'
)
return between(len(value), min=min, max=max)
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