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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (c) 2020 Richard Hull and contributors
# See LICENSE.rst for details.
"""
Tests for the :py:class:`luma.lcd.device.ili9486` device.
"""
import pytest
from luma.lcd.device import ili9486
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, setup_function, assert_invalid_dimensions # noqa: F401
from unittest.mock import Mock
def test_init_320x480():
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
ili9486(serial, gpio=Mock(), framebuffer=full_frame())
assert serial.data.called
assert serial.command.called
# This set of expected results include the padding bytes that
# appear necessary with Waveshare's ili9486 implementation.
assert recordings == [
{'command': [0xb0]}, {'data': [0x00, 0x00]},
{'command': [0x11]},
{'command': [0x3a]}, {'data': [0x00, 0x66]},
{'command': [0x21]},
{'command': [0xc0]}, {'data': [0x00, 0x09, 0x00, 0x09]},
{'command': [0xc1]}, {'data': [0x00, 0x41, 0x00, 0x00]},
{'command': [0xc2]}, {'data': [0x00, 0x33]},
{'command': [0xc5]}, {'data': [0x00, 0x00, 0x00, 0x36]},
{'command': [0x36]}, {'data': [0x00, 0x08]},
{'command': [0xb6]}, {'data': [0x00, 0x00, 0x00, 0x42, 0x00, 0x3b]},
{'command': [0x13]},
{'command': [0x34]},
{'command': [0x38]},
{'command': [0x11]},
{'command': [0x2a]}, {'data': [0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x3f]},
{'command': [0x2b]}, {'data': [0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0xdf]},
{'command': [0x2c]},
{'data': bytearray([0x00] * (320 * 480 * 3))},
{'command': [0x29]},
]
def test_init_invalid_dimensions():
"""
ILI9486 LCD with an invalid resolution raises a
:py:class:`luma.core.error.DeviceDisplayModeError`.
"""
assert_invalid_dimensions(ili9486, serial, 128, 77)
def test_offsets():
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
ili9486(serial, gpio=Mock(), width=320, height=480, h_offset=2, v_offset=1, framebuffer=full_frame())
assert serial.data.called
assert serial.command.called
assert recordings == [
{'command': [0xb0]}, {'data': [0x00, 0x00]},
{'command': [0x11]},
{'command': [0x3a]}, {'data': [0x00, 0x66]},
{'command': [0x21]},
{'command': [0xc0]}, {'data': [0x00, 0x09, 0x00, 0x09]},
{'command': [0xc1]}, {'data': [0x00, 0x41, 0x00, 0x00]},
{'command': [0xc2]}, {'data': [0x00, 0x33]},
{'command': [0xc5]}, {'data': [0x00, 0x00, 0x00, 0x36]},
{'command': [0x36]}, {'data': [0x00, 0x08]},
{'command': [0xb6]}, {'data': [0x00, 0x00, 0x00, 0x42, 0x00, 0x3b]},
{'command': [0x13]},
{'command': [0x34]},
{'command': [0x38]},
{'command': [0x11]},
{'command': [0x2A]}, {'data': [0x00, 0x00, 0x00, 0x02, 0x00, 0x01, 0x00, 0x3f + 0x02]},
{'command': [0x2B]}, {'data': [0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0xdf + 0x01]},
{'command': [0x2C]},
{'data': bytearray([0x00] * (320 * 480 * 3))},
{'command': [0x29]},
]
def test_contrast():
device = ili9486(serial, gpio=Mock())
serial.reset_mock()
with pytest.raises(AssertionError):
device.contrast(300)
def test_hide():
device = ili9486(serial, gpio=Mock())
serial.reset_mock()
device.hide()
serial.command.assert_called_once_with(40)
def test_show():
device = ili9486(serial, gpio=Mock())
serial.reset_mock()
device.show()
serial.command.assert_called_once_with(41)
def test_display_full_frame():
pytest.skip("This test is skipped.")
device = ili9486(serial, gpio=Mock(), framebuffer=full_frame())
serial.reset_mock()
recordings = []
def data(data):
recordings.append({'data': list(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_ili9486", recordings)
assert recordings == get_reference_data('demo_ili9486')
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