python-escpos/test/test_functions/test_function_buzzer.py

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import pytest
from escpos import printer
from escpos.constants import BUZZER
def test_buzzer_function_with_default_params() -> None:
instance = printer.Dummy()
instance.buzzer()
expected = BUZZER + bytes((2, 4))
assert instance.output == expected
@pytest.mark.parametrize(
"times, duration",
[
[1, 1],
[2, 2],
[3, 3],
[4, 4],
[5, 5],
[6, 6],
[7, 7],
[8, 8],
[9, 9],
],
)
def test_buzzer_function(times: int, duration: int) -> None:
instance = printer.Dummy()
instance.buzzer(times, duration)
expected = BUZZER + bytes((times, duration))
assert instance.output == expected
@pytest.mark.parametrize(
"times, duration, expected_message",
[
[0, 0, "times must be between 1 and 9"],
[-1, 0, "times must be between 1 and 9"],
[10, 0, "times must be between 1 and 9"],
[11, 0, "times must be between 1 and 9"],
[3, 0, "duration must be between 1 and 9"],
[3, -1, "duration must be between 1 and 9"],
[3, 10, "duration must be between 1 and 9"],
[3, 11, "duration must be between 1 and 9"],
],
)
def test_buzzer_fuction_with_outrange_values(
times: int, duration: int, expected_message: str
) -> None:
instance = printer.Dummy()
with pytest.raises(ValueError) as e:
instance.buzzer(times, duration)
assert str(e.value) == expected_message