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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# pyvows testing engine
# https://github.com/heynemann/pyvows
# Licensed under the MIT license:
# http://www.opensource.org/licenses/mit-license
# Copyright (c) 2011 Bernardo Heynemann heynemann@gmail.com
from pyvows import Vows, expect
class SomeClass(object):
pass
class OtherClass(object):
pass
@Vows.batch
class AssertionIsInstance(Vows.Context):
def topic(self):
return SomeClass()
class WhenIsInstance(Vows.Context):
def we_get_an_instance_of_someclass(self, topic):
expect(topic).to_be_instance_of(SomeClass)
class WhenWeGetAnError(Vows.Context):
@Vows.capture_error
def topic(self, last):
expect(2).to_be_instance_of(str)
def we_get_an_understandable_message(self, topic):
msg = 'Expected topic(2) to be an instance of {0!r}, but it was a {1!r}'.format(str, int)
expect(topic).to_have_an_error_message_of(msg)
class WhenIsNotInstance(Vows.Context):
def we_do_not_get_an_instance_of_otherclass(self, topic):
expect(topic).Not.to_be_instance_of(OtherClass)
class WhenWeGetAnError(Vows.Context):
@Vows.capture_error
def topic(self, last):
expect(2).not_to_be_instance_of(int)
def we_get_an_understandable_message(self, topic):
expect(topic).to_have_an_error_message_of(
'Expected topic(2) not to be an instance of {0!s}'.format(int))
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