def test_rpilcdmenu_pulseEnable_is_blinking_pin_e():
RPi_mock = Mock()
RPi_mock.GPIO = Mock()
RPi_mock.GPIO.output = Mock()
with patch.dict(sys.modules, {'RPi': RPi_mock, 'RPi.GPIO': Mock()}):
lcd = RpiLCDHwd(1, 2, [3, 4, 5, 6])
lcd.pulseEnable()
assert RPi_mock.GPIO.output.mock_calls == [
call(2, False), call(2, True),
call(2, False)
]
def test_rpilcdmenu_write4bits_transfers_data_through_GPIO():
RPi_mock = Mock()
RPi_mock.GPIO = Mock()
RPi_mock.GPIO.output = Mock()
with patch.dict(sys.modules, {'RPi': RPi_mock, 'RPi.GPIO': Mock()}):
lcd = RpiLCDHwd(1, 2, [3, 4, 5, 6])
lcd.delayMicroseconds = Mock()
lcd.pulseEnable = Mock()
lcd.write4bits(0x123)
assert RPi_mock.GPIO.output.mock_calls == [
call(1, False),
call(3, False),
call(4, False),
call(5, False),
call(6, False),
call(6, True),
call(3, True),
call(3, False),
call(4, False),
call(5, False),
call(6, False),
call(3, True)
]