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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (c) 2021 Richard Hull and contributors
# See LICENSE.rst for details.
"""
Tests for the :py:class:`luma.lcd.device.st7789` device.
"""
import pytest
from luma.lcd.device import st7789
from luma.core.render import canvas
from luma.core.framebuffer import full_frame
from baseline_data import get_reference_data, primitives
from helpers import serial
from unittest.mock import Mock
def test_init_240x240():
recordings = []
def data(data):
recordings.extend(data)
def command(*cmd):
recordings.extend(['command', list(cmd)[0], 'data', *list(cmd)[1:]])
serial.command.side_effect = command
serial.data.side_effect = data
st7789(serial, gpio=Mock(), framebuffer=full_frame())
assert serial.data.called
assert serial.command.called
assert recordings == [
'command', 54, 'data', 112,
'command', 58, 'data', 6,
'command', 178, 'data', 12, 12, 0, 51, 51,
'command', 183, 'data', 53,
'command', 187, 'data', 25,
'command', 192, 'data', 44,
'command', 194, 'data', 1,
'command', 195, 'data', 18,
'command', 196, 'data', 32,
'command', 198, 'data', 15,
'command', 208, 'data', 164, 161,
'command', 224, 'data', 208, 4, 13, 17, 19, 43, 63, 84, 76, 24, 13, 11, 31, 35,
'command', 225, 'data', 208, 4, 12, 17, 19, 44, 63, 68, 81, 47, 31, 31, 32, 35,
'command', 33, 'data',
'command', 17, 'data',
'command', 41, 'data',
'command', 42, 'data', 0, 0, 0, 239,
'command', 43, 'data', 0, 0, 0, 239,
'command', 44, 'data', *([0] * (240 * 240 * 3)),
'command', 41, 'data'
]
def test_contrast():
device = st7789(serial, gpio=Mock())
serial.reset_mock()
with pytest.raises(AssertionError):
device.contrast(300)
def test_hide():
device = st7789(serial, gpio=Mock())
serial.reset_mock()
device.hide()
serial.command.assert_called_once_with(40)
def test_show():
device = st7789(serial, gpio=Mock())
serial.reset_mock()
device.show()
serial.command.assert_called_once_with(41)
def test_display():
pytest.skip("This test is skipped.")
device = st7789(serial, gpio=Mock(), framebuffer=full_frame())
serial.reset_mock()
recordings = []
def data(data):
recordings.extend(data)
def command(*cmd):
recordings.extend(['command', list(cmd)[0], 'data', *list(cmd)[1:]])
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_st7789", recordings)
assert recordings == get_reference_data('demo_st7789')
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