forked from python-escpos/python-escpos
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathtest_function_panel_button.py
More file actions
54 lines (41 loc) · 1.43 KB
/
test_function_panel_button.py
File metadata and controls
54 lines (41 loc) · 1.43 KB
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
51
52
53
54
#!/usr/bin/python
"""tests for panel button function
:author: `Patrick Kanzler <patrick.kanzler@fablab.fau.de>`_
:organization: `python-escpos <https://github.com/python-escpos>`_
:copyright: Copyright (c) 2016 `python-escpos <https://github.com/python-escpos>`_
:license: MIT
"""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals
from nose.tools import with_setup
import escpos.printer as printer
import os
devfile = 'testfile'
def setup_testfile():
"""create a testfile as devfile"""
fhandle = open(devfile, 'a')
try:
os.utime(devfile, None)
finally:
fhandle.close()
def teardown_testfile():
"""destroy testfile again"""
os.remove(devfile)
@with_setup(setup_testfile, teardown_testfile)
def test_function_panel_button_on():
"""test the panel button function (enabling) by comparing output"""
instance = printer.File(devfile=devfile)
instance.panel_buttons()
instance.flush()
with open(devfile, "rb") as f:
assert(f.read() == b'\x1B\x63\x35\x00')
@with_setup(setup_testfile, teardown_testfile)
def test_function_panel_button_off():
"""test the panel button function (disabling) by comparing output"""
instance = printer.File(devfile=devfile)
instance.panel_buttons(False)
instance.flush()
with open(devfile, "rb") as f:
assert(f.read() == b'\x1B\x63\x35\x01')