55 lines
1.4 KiB
Python
55 lines
1.4 KiB
Python
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#!/usr/bin/python
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"""tests for panel button function
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:author: `Patrick Kanzler <patrick.kanzler@fablab.fau.de>`_
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:organization: `python-escpos <https://github.com/python-escpos>`_
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:copyright: Copyright (c) 2016 `python-escpos <https://github.com/python-escpos>`_
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:license: GNU GPL v3
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"""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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from __future__ import unicode_literals
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from nose.tools import with_setup
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import escpos.printer as printer
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import os
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devfile = 'testfile'
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def setup_testfile():
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"""create a testfile as devfile"""
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fhandle = open(devfile, 'a')
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try:
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os.utime(devfile, None)
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finally:
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fhandle.close()
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def teardown_testfile():
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"""destroy testfile again"""
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os.remove(devfile)
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@with_setup(setup_testfile, teardown_testfile)
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def test_function_panel_button_on():
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"""test the panel button function (enabling) by comparing output"""
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instance = printer.File(devfile=devfile)
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instance.panel_buttons()
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instance.flush()
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with open(devfile, "rb") as f:
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assert(f.read() == b'\x1B\x63\x35\x00')
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@with_setup(setup_testfile, teardown_testfile)
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def test_function_panel_button_off():
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"""test the panel button function (disabling) by comparing output"""
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instance = printer.File(devfile=devfile)
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instance.panel_buttons(False)
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instance.flush()
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with open(devfile, "rb") as f:
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assert(f.read() == b'\x1B\x63\x35\x01')
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