1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (c) 2013-17 Richard Hull and contributors
# See LICENSE.rst for details.
"""
Tests for the :py:class:`luma.lcd.device.st7567` device.
"""
import pytest
from luma.lcd.device import st7567
from luma.core.render import canvas
from baseline_data import get_reference_data, primitives
from helpers import serial, setup_function, assert_invalid_dimensions # noqa: F401
from unittest.mock import Mock, call
def test_init_128x64():
st7567(serial, gpio=Mock())
serial.command.assert_has_calls([
call(0xA3),
call(0xA1),
call(0xC0),
call(0xA6),
call(0x40),
call(0x2F),
call(0x22),
call(0xAF),
call(0x81, 57)
])
# Next 1024 are all data: zeros to clear the RAM
# (1024 = 128 * 64 / 8)
serial.data.assert_has_calls([call([0] * 128)] * 8)
def test_contrast():
device = st7567(serial, gpio=Mock())
serial.reset_mock()
with pytest.raises(AssertionError):
device.contrast(300)
def test_display():
pytest.skip("This test is skipped.")
device = st7567(serial, gpio=Mock())
serial.reset_mock()
recordings = []
def data(data):
recordings.append({'data': data})
def command(*cmd):
recordings.append({'command': list(cmd)})
serial.command.side_effect = command
serial.data.side_effect = data
# Use the same drawing primitives as the demo
with canvas(device) as draw:
primitives(device, draw)
assert serial.data.called
assert serial.command.called
# To regenerate test data, uncomment the following (remember not to commit though)
# ================================================================================
# from baseline_data import save_reference_data
# save_reference_data("demo_st7567", recordings)
assert recordings == get_reference_data('demo_st7567')
|
