python-escpos/test/test_function_cashdraw.py

16 lines
373 B
Python

#!/usr/bin/python
import escpos.printer as printer
from escpos.exceptions import CashDrawerError
import pytest
def test_raise_CashDrawerError():
"""should raise an error if the sequence is invalid.
"""
instance = printer.Dummy()
with pytest.raises(CashDrawerError):
# call with sequence that is too long
instance.cashdraw([1,1,1,1,1,1])