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test_function_barcode.py
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52 lines (43 loc) · 1.52 KB
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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''