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from unittest import TestCase
from unittest.mock import patch
import binascii
import bme280
import machine
import asyncio as uasyncio
# spidev.SpiDev
class SpiDevMock:
def open(self, bus, cs):
assert bus == 42 and cs == 2
def close(self):
pass
def xfer2(self, data):
length = len(data)
assert length >= 1
reg = data[0]
if reg == 0xD0 and length == 1 + 1: # id
return b'\0' + bytes([ 0x60, ])
if reg == 0x88 and length == 26 + 1: # cal burst 1
return b'\0' + binascii.unhexlify("04719f673200198a4dd6d00bc419fafff9ff0c3020d18813004b")
if reg == 0xE1 and length == 7 + 1: # cal burst 2
return b'\0' + binascii.unhexlify("5a01001626031e")
if reg == 0xF7 and length == 8 + 1: # value burst
return b'\0' + binascii.unhexlify("5e962085efc07bd2")
return bytes([ 0, ] * length)
# machine.SPI
class SPIMock(SpiDevMock):
MSB = object()
def __init__(self, index=None, baudrate=None, *,
polarity=None, phase=None, bits=None, firstbit=None,
sck=None, mosi=None, miso=None):
if index is not None:
assert index == 42
if polarity is not None:
assert polarity == 0
if phase is not None:
assert phase == 0
if bits is not None:
assert bits == 8
if firstbit is not None:
assert firstbit == self.MSB
if isinstance(sck, PinMock):
assert sck._pin == 21
assert sck._mode == PinMock.OUT
assert sck._value == 0
if isinstance(sck, int):
assert sck == 21
if isinstance(mosi, PinMock):
assert mosi._pin == 22
assert mosi._mode == PinMock.OUT
assert mosi._value == 0
if isinstance(mosi, int):
assert mosi == 22
if isinstance(miso, PinMock):
assert miso._pin == 23
assert miso._mode == PinMock.IN
assert miso._value is None
if isinstance(miso, int):
assert miso == 23
def deinit(self):
pass
def write(self, data):
self.xfer2(data)
def read(self, nbytes, write=0):
return self.xfer2(bytes([write, ] * nbytes))
# machine.SoftSPI
class SoftSPIMock(SPIMock):
def __init__(self, **kwargs):
assert "index" not in kwargs
SPIMock.__init__(self, **kwargs)
# machine.Pin
class PinMock:
OUT = object()
IN = object()
def __init__(self, pin, mode, value=None):
self._value = value
self._mode = mode
self._pin = pin
def __call__(self, value=None):
assert value is not None
self._value = value
class Test_SPIDummy(TestCase):
@patch("bme280.bme280.isMicropython", False)
@patch("spidev.SpiDev", SpiDevMock)
def test_linux(self):
with bme280.BME280(spiBus=42, spiCS=2) as bme:
t, h, p = bme.readForced(filter=bme280.FILTER_4,
tempOversampling=bme280.OVSMPL_4,
humidityOversampling=bme280.OVSMPL_16,
pressureOversampling=bme280.OVSMPL_4)
self.assertTrue(t > 0 and h > 0 and p > 0)
with bme280.BME280(spiBus=42, spiCS=2, calc=bme280.CALC_INT32) as bme:
t, h, p = bme.readForced()
self.assertAlmostEqual(t, 27.099998, places=4)
self.assertAlmostEqual(h, 0.451729, places=4)
self.assertAlmostEqual(p, 98484.001160, places=1)
with bme280.BME280(spiBus=42, spiCS=2, calc=bme280.CALC_INT64) as bme:
t, h, p = bme.readForced()
self.assertAlmostEqual(t, 27.099998, places=4)
self.assertAlmostEqual(h, 0.451729, places=4)
self.assertAlmostEqual(p / 100, 984.84001160, places=1)
with bme280.BME280(spiBus=42, spiCS=2, calc=bme280.CALC_FLOAT) as bme:
t, h, p = bme.readForced()
self.assertAlmostEqual(t, 27.099998, places=1)
self.assertAlmostEqual(h, 0.451729, places=2)
self.assertAlmostEqual(p / 100, 984.84001160, places=1)
@patch("bme280.bme280.isMicropython", True)
@patch("machine.SPI", SPIMock, create=True)
@patch("machine.SoftSPI", SoftSPIMock, create=True)
@patch("machine.Pin", PinMock, create=True)
def test_micropython(self):
with bme280.BME280(spiBus=42, spiCS=2) as bme:
t, h, p = bme.readForced()
self.assertTrue(t > 0 and h > 0 and p > 0)
with bme280.BME280(spiBus={ "index": 42, "sck": 21, "mosi": 22, "miso": 23 }, spiCS=2) as bme:
t, h, p = bme.readForced()
self.assertTrue(t > 0 and h > 0 and p > 0)
with bme280.BME280(spiBus={ "sck": 21, "mosi": 22, "miso": 23 }, spiCS=2) as bme:
t, h, p = bme.readForced()
self.assertTrue(t > 0 and h > 0 and p > 0)
with bme280.BME280(spiBus=machine.SPI(42, sck=21, mosi=22, miso=23), spiCS=2) as bme:
t, h, p = bme.readForced()
self.assertTrue(t > 0 and h > 0 and p > 0)
with bme280.BME280(spiBus=machine.SPI(42,
sck=machine.Pin(21, mode=machine.Pin.OUT, value=0),
mosi=machine.Pin(22, mode=machine.Pin.OUT, value=0),
miso=machine.Pin(23, mode=machine.Pin.IN)),
spiCS=machine.Pin(2, mode=machine.Pin.OUT, value=1)) as bme:
t, h, p = bme.readForced()
self.assertTrue(t > 0 and h > 0 and p > 0)
# Test async
async def coroutine_():
async with bme280.BME280(spiBus=42, spiCS=2) as bme:
t, h, p = await bme.readForcedAsync()
self.assertTrue(t > 0 and h > 0 and p > 0)
uasyncio.run(coroutine_())
# Normal mode
with bme280.BME280(spiBus=42, spiCS=2) as bme:
bme.start(mode=bme280.MODE_NORMAL,
standbyTime=bme280.T_SB_10ms)
# Other methods
with bme280.BME280(spiBus=42, spiCS=2) as bme:
bme.readForced()
self.assertFalse(bme.isMeasuring())
bme.reset()
# vim: ts=4 sw=4 expandtab
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