def test_property_validity_checking(self):
with self.subTest("osrs_p"):
s = sensors.BMP280(osrs_p=sensors.BMP280.OSRS["x16"])
with self.assertRaises(ValueError):
s.osrs_p = "foobar"
with self.subTest("osrs_t"):
s = sensors.BMP280(osrs_t=sensors.BMP280.OSRS["x16"])
with self.assertRaises(ValueError):
s.osrs_t = "foobar"
with self.subTest("filter"):
s = sensors.BMP280(filtr=sensors.BMP280.FILTER["16"])
with self.assertRaises(ValueError):
s.filtr = "foobar"
def test_converts_temperature_correctly(self):
s = sensors.BMP280()
# set example calibration from datasheet
datasheet_calib_example = dict(
T1=27504,
T2=26435,
T3=-1000,
P1=36477,
P2=-10685,
P3=3024,
P4=2855,
P5=140,
P6=-7,
P7=15500,
P8=-14600,
P9=6000,
)
s.calibration = datasheet_calib_example
# mock register content readout
datasheet_data_example = [0x65, 0x5a, 0xc0, 0x7e, 0xed, 0x00]
smbus.SMBus().read_i2c_block_data.return_value = datasheet_data_example
self.assertAlmostEqual(s.value["pressure"], 100653.27, delta=0.01)
def test_ctype_conversions(self):
s = sensors.BMP280()
with self.subTest("to short valid"):
self.assertEqual(s.to_short([0x11, 0x22]), 8721)
with self.subTest("to unsigned short"):
self.assertEqual(s.to_ushort([0x11, 0x22]), 8721)
def test_reads_calibration_values_on_init(self):
s = sensors.BMP280()
self.assertIsNotNone(s.calibration)
self.assertIsNotNone(s.calibration["T1"])
def test_has_i2c_address(self):
s = sensors.BMP280()
self.assertEqual(s.i2c_addr, sensors.BMP280.DEFAULT_I2C_ADDR)