python-escpos/test/test_function_text.py

63 lines
1.4 KiB
Python

#!/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
"""
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"