def test_display():
"""
UC1701X LCD screen can draw and display an image.
"""
device = uc1701x(serial, gpio=Mock())
serial.reset_mock()
recordings = []
def data(data):
recordings.append({'data': data})
def command(*cmd):
recordings.append({'command': list(cmd)})
serial.command = Mock(side_effect=command, unsafe=True)
serial.data = Mock(side_effect=data, unsafe=True)
# Use the same drawing primitives as the demo
with canvas(device) as draw:
primitives(device, draw)
serial.data.assert_called()
serial.command.assert_called()
assert recordings == get_reference_data('demo_uc1701x')
def test_display():
"""
UC1701X LCD screen can draw and display an image.
"""
device = uc1701x(serial, gpio=Mock())
serial.reset_mock()
recordings = []
def data(data):
recordings.append({'data': data})
def command(*cmd):
recordings.append({'command': list(cmd)})
serial.command = Mock(side_effect=command, unsafe=True)
serial.data = Mock(side_effect=data, unsafe=True)
# Use the same drawing primitives as the demo
with canvas(device) as draw:
primitives(device, draw)
serial.data.assert_called()
serial.command.assert_called()
# To regenerate test data, uncomment the following (remember not to commit though)
# ================================================================================
# from baseline_data import save_reference_data
# save_reference_data("demo_uc1701x", recordings)
assert recordings == get_reference_data('demo_uc1701x')
def test_init_128x64():
"""
UC1701X LCD with a 128 x 64 resolution works correctly.
"""
uc1701x(serial, gpio=Mock())
serial.command.assert_has_calls([
# Initial burst are initialization commands
call(226),
call(44),
call(46),
call(47),
call(248, 0),
call(35),
call(162),
call(192),
call(161),
call(172),
call(166),
call(165),
call(164),
# set contrast
call(129, 44),
# reset the display
call(176, 4, 16),
call(177, 4, 16),
call(178, 4, 16),
call(179, 4, 16),
call(180, 4, 16),
call(181, 4, 16),
call(182, 4, 16),
call(183, 4, 16),
call(175)
])
# Next 1024 are all data: zero's to clear the RAM
# (1024 = 128 * 64 / 8)
serial.data.assert_has_calls([call([0] * 128)] * 8)