python-escpos/test/test_function_text.py at development · python-escpos/python-escpos · GitHub

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#!/usr/bin/python

"""tests for the text printing function

:author: `Patrick Kanzler <patrick.kanzler@fablab.fau.de>`_

:organization: `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

import pytest

import mock

from hypothesis import given, assume

import hypothesis.strategies as st

from escpos.printer import Dummy

def get_printer():

return Dummy(magic_encode_args={'disabled': True, 'encoding': 'CP437'})

@given(text=st.text())

def test_text(text):

"""Test that text() calls the MagicEncode object.

"""

instance = get_printer()

instance.magic.write = mock.Mock()

instance.text(text)

instance.magic.write.assert_called_with(text)

def test_block_text():

printer = get_printer()

printer.block_text(

"All the presidents men were eating falafel for breakfast.", font='a')

assert printer.output == \

b'All the presidents men were eating falafel\nfor breakfast.'

def test_textln():

printer = get_printer()

printer.textln('hello, world')

assert printer.output == b'hello, world\n'

def test_textln_empty():

printer = get_printer()

printer.textln()

assert printer.output == b'\n'

def test_ln():

printer = get_printer()

printer.ln()

assert printer.output == b'\n'

def test_multiple_ln():

printer = get_printer()

printer.ln(3)

assert printer.output == b'\n\n\n'

python-escpos/test/test_function_text.py at development · python-escpos/python-escpos · GitHub

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