31 lines
923 B
Python
31 lines
923 B
Python
|
#!/usr/bin/python
|
||
|
|
"""verifies that the metaclass abc is properly used by Escpos
|
||
|
|
|
||
|
|
:author: `Patrick Kanzler <patrick.kanzler@fablab.fau.de>`_
|
||
|
|
:organization: `python-escpos <https://github.com/python-escpos>`_
|
||
|
|
:copyright: Copyright (c) 2016 Patrick Kanzler
|
||
|
|
:license: GNU GPL v3
|
||
|
|
"""
|
||
|
|
|
||
|
|
from __future__ import absolute_import
|
||
|
|
from __future__ import division
|
||
|
|
from __future__ import print_function
|
||
|
|
from __future__ import unicode_literals
|
||
|
|
|
||
|
|
from nose.tools import raises
|
||
|
|
|
||
|
|
import escpos.escpos as escpos
|
||
|
|
from abc import ABCMeta
|
||
|
|
|
||
|
|
|
||
|
|
@raises(TypeError)
|
||
|
|
def test_abstract_base_class_raises():
|
||
|
|
"""test whether the abstract base class raises an exception for Escpos"""
|
||
|
|
escpos.Escpos() # This call should raise TypeError because of abstractmethod _raw()
|
||
|
|
|
||
|
|
|
||
|
|
def test_abstract_base_class():
|
||
|
|
""" test whether Escpos has the metaclass ABCMeta """
|
||
|
|
assert issubclass(escpos.Escpos, object)
|
||
|
|
assert type(escpos.Escpos) is ABCMeta
|