/usr/lib/python2.7/dist-packages/preggy/assertions/length.py is in python-preggy 1.1.3-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | # -*- coding: utf-8 -*-
'''preggy length assertions. For use with `expect()` (see `preggy.core`).
'''
# preggy assertions
# https://github.com/heynemann/preggy
# Licensed under the MIT license:
# http://www.opensource.org/licenses/mit-license
# Copyright (c) 2013 Bernardo Heynemann heynemann@gmail.com
from __future__ import absolute_import
from preggy import assertion
#-------------------------------------------------------------------------------------------------
# Helpers
#-------------------------------------------------------------------------------------------------
def _get_length(topic, expected):
length = None
try:
length = len(topic)
except (AttributeError, TypeError):
if hasattr(topic, 'qsize'):
length = topic.qsize()
if length is None:
msg = "Could not determine \"{0}\"'s length.".format(topic)
raise AssertionError(msg)
return length
#-------------------------------------------------------------------------------------------------
# Assertions
#-------------------------------------------------------------------------------------------------
@assertion
def to_length(topic, expected):
'''Asserts that `len(topic)` == `expected`.'''
length = _get_length(topic, expected)
if length != expected:
msg = 'Expected topic({0!r}) to have {1} of length, but it has {2}'.format(topic, expected, length)
raise AssertionError(msg)
@assertion
def not_to_length(topic, expected):
'''Asserts that `len(topic)` != `expected`.'''
length = _get_length(topic, expected)
if length == expected:
msg = 'Expected topic({0!r}) not to have {1} of length'.format(topic, expected)
raise AssertionError(msg)
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