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

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#!/usr/bin/python

from __future__ import absolute_import

from __future__ import division

from __future__ import print_function

from __future__ import unicode_literals

import escpos.printer as printer

from escpos.constants import BARCODE_TYPE_A, BARCODE_TYPE_B

from escpos.capabilities import Profile, BARCODE_B

from escpos.exceptions import BarcodeTypeError, BarcodeCodeError

import pytest

@pytest.mark.parametrize("bctype,data,expected", [

('EAN13', '4006381333931',

b'\x1ba\x01\x1dh@\x1dw\x03\x1df\x00\x1dH\x02\x1dk\x024006381333931\x00')

])

def test_barcode(bctype, data, expected):

"""should generate different barcode types correctly.

"""

instance = printer.Dummy()

instance.barcode(data, bctype)

assert instance.output == expected

@pytest.mark.parametrize("bctype,supports_b", [

('invalid', True),

('CODE128', False),

])

def test_lacks_support(bctype, supports_b):

"""should raise an error if the barcode type is not supported.

"""

profile = Profile(features={BARCODE_B: supports_b})

instance = printer.Dummy(profile=profile)

with pytest.raises(BarcodeTypeError):

instance.barcode('test', bctype)

assert instance.output == b''

@pytest.mark.parametrize("bctype,data", [

('EAN13', 'AA'),

('CODE128', '{D2354AA'),

])

def test_code_check(bctype, data):

"""should raise an error if the barcode code is invalid.

"""

instance = printer.Dummy()

with pytest.raises(BarcodeCodeError):

instance.barcode(data, bctype)

assert instance.output == b''

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

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