def test_temperature_forced():
from tools import SMBusFakeDevice
from bme280 import BME280
from calibration import BME280Calibration
dev = SMBusFakeDevice(1)
# Load the fake temperature into the virtual registers
dev.regs[0xfc] = (TEST_TEMP_RAW & 0x0000F) << 4
dev.regs[0xfb] = (TEST_TEMP_RAW & 0x00FF0) >> 4
dev.regs[0xfa] = (TEST_TEMP_RAW & 0xFF000) >> 12
bme280 = BME280(i2c_dev=dev)
bme280.setup(mode="forced")
# Replace the loaded calibration with our known values
bme280.calibration = BME280Calibration()
assert round(bme280.get_temperature(), 4) == round(TEST_TEMP_CMP, 4)
def test_altitude():
from tools import SMBusFakeDevice
from bme280 import BME280
from calibration import BME280Calibration
dev = SMBusFakeDevice(1)
# Load the fake temperature values into the virtual registers
# Pressure is temperature compensated!!!
dev.regs[0xfc] = (TEST_TEMP_RAW & 0x0000F) << 4
dev.regs[0xfb] = (TEST_TEMP_RAW & 0x00FF0) >> 4
dev.regs[0xfa] = (TEST_TEMP_RAW & 0xFF000) >> 12
# Load the fake pressure values
dev.regs[0xf9] = (TEST_PRES_RAW & 0x0000F) << 4
dev.regs[0xf8] = (TEST_PRES_RAW & 0x00FF0) >> 4
dev.regs[0xf7] = (TEST_PRES_RAW & 0xFF000) >> 12
bme280 = BME280(i2c_dev=dev)
bme280.setup()
# Replace the loaded calibration with our known values
bme280.calibration = BME280Calibration()
assert round(bme280.get_altitude(), 4) == round(TEST_ALT_CMP, 4)
def test_humidity():
from tools import SMBusFakeDevice
from bme280 import BME280
from calibration import BME280Calibration
dev = SMBusFakeDevice(1)
# Load the fake temperature values into the virtual registers
# Humidity is temperature compensated!!!
dev.regs[0xfc] = (TEST_TEMP_RAW & 0x0000F) << 4
dev.regs[0xfb] = (TEST_TEMP_RAW & 0x00FF0) >> 4
dev.regs[0xfa] = (TEST_TEMP_RAW & 0xFF000) >> 12
# Load the fake humidity values
dev.regs[0xfd] = TEST_HUM_RAW >> 8
dev.regs[0xfe] = TEST_HUM_RAW & 0xFF
bme280 = BME280(i2c_dev=dev)
bme280.setup()
# Replace the loaded calibration with our known values
bme280.calibration = BME280Calibration()
assert round(bme280.get_humidity(), 4) == round(TEST_HUM_CMP, 4)