def test_get_data(self):
sensor = Sensor()
self.assertEqual(sensor.chip_id, "fake_chip_id")
self.assertEqual(sensor.chip_version, "fake_version")
data = sensor.get_data()
self.assertLess(abs(data['temperature'] - 24.65), 1e-4)
self.assertLess(abs(data['pressure'] - 969.1056565652227), 1e-4)
self.assertLess(abs(data['humidity'] - 41.07329061361983), 1e-4)
def test_print_with_absolute_humidity(self):
sensor = Sensor()
ref_message = "Temperature: 24.65 C\n" + \
"Humidity: 0.009291 kg / m^3\n" + \
"Pressure: 969.1 hPa\n"
with mock.patch("sys.stdout", new_callable=io.StringIO) as fake_out:
sensor.print_data(relative_humidity=False)
self.assertEqual(fake_out.getvalue(), ref_message)
def test(self):
sensor = Sensor()
self.assertEqual(sensor.chip_id, "fake_chip_id")
self.assertEqual(sensor.chip_version, "fake_version")
ref_message = "Temperature: 24.65 C\n" + \
"Humidity: 41.07 %\n" + \
"Pressure: 969.1 hPa\n"
with mock.patch("sys.stdout", new_callable=io.StringIO) as fake_out:
sensor.print_data()
self.assertEqual(fake_out.getvalue(), ref_message)
def test_get_humidity(self):
sensor = Sensor()
humidity = sensor.get_humidity()
self.assertLess(abs(humidity - 41.07329061361983), 1e-4)
sensor = Sensor()
humidity = sensor.get_humidity(relative=False)
self.assertLess(abs(humidity - 0.009291279797753835), 1e-4)
def test(self):
# this test requires us to override the processor type and smbbus
known_revisions = {
'0002': 0,
'0003': 0,
'0004': 1,
'0005': 1,
'0006': 1,
'0007': 0,
'0008': 0,
'0009': 0,
'000d': 1,
'000e': 1,
'000f': 1,
'0010': 0,
'0011': 1,
'0012': 0,
'a01041': 1,
'a21041': 1,
'900092': 1,
'900093': 1,
'a02082': 1,
'a22082': 1,
'9000c1': 1,
'c03111': 1,
'abcdef': 1,
'0000': 1
}
for revision in known_revisions:
m = mock.mock_open(read_data="\nRevision:" + revision + "\n")
with mock.patch('builtins.open', m):
with mock.patch('smbus.SMBus', FakeSMBus):
sensor = Sensor()
self.assertEqual(sensor.bus.value,
known_revisions[revision])
def test_unconfigured_i2c(self):
with mock.patch('smbus.SMBus', FileNotFoundSMBus):
with self.assertRaises(I2CException):
Sensor()
def test_get_pressure_without_height_above_sea_level(self):
sensor = Sensor()
with self.assertRaises(ValueError):
sensor.get_pressure(height_above_sea_level=None,
as_pressure_at_sea_level=True)
def test_get_pressure_above_sea_level(self):
sensor = Sensor()
pressure = sensor.get_pressure(height_above_sea_level=440,
as_pressure_at_sea_level=True)
self.assertLess(abs(pressure - 1019.0420210), 1e-4)
def test_get_pressure(self):
sensor = Sensor()
pressure = sensor.get_pressure()
self.assertLess(abs(pressure - 969.1056565652227), 1e-4)
def test_get_temperature(self):
sensor = Sensor()
temperature = sensor.get_temperature()
self.assertLess(abs(temperature - 24.65), 1e-4)