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test_function_text.py
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65 lines (48 loc) · 1.58 KB
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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>`_
: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
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'