def test_temper_detected(self, mk_temperusb):
"""TEMPer device is detected if present."""
mk_temper_device = MagicMock()
mk_temperusb.TemperHandler.return_value.get_devices.return_value = \
[mk_temper_device]
thermometer = temper_usb.TEMPerThermometer()
self.assertIs(thermometer._temper_device, mk_temper_device)
def test_temper_read_error(self, mk_temperusb):
"""ReadError is raised on TEMPer device read error."""
mk_temper_device = MagicMock()
mk_temper_device.get_temperature.side_effect = Exception('Some Error')
mk_temperusb.TemperHandler.return_value.get_devices.return_value = \
[mk_temper_device]
thermometer = temper_usb.TEMPerThermometer()
with self.assertRaises(ReadError):
thermometer.get_temperature()
def test_temper_get_temp_celsius_default(self, mk_temperusb):
"""TEMPer device temperature is requested in celsius by default."""
temp_c = 30
mk_temper_device = MagicMock()
mk_temper_device.get_temperature.return_value = temp_c
mk_temperusb.TemperHandler.return_value.get_devices.return_value = \
[mk_temper_device]
thermometer = temper_usb.TEMPerThermometer()
self.assertEqual(thermometer.get_temperature(), temp_c)
mk_temper_device.get_temperature.assert_called_with(format='celsius')
def test_temper_get_temp_fahreheit(self, mk_temperusb):
"""TEMPer device temperature is requested in fahrenheit."""
temp_f = 86
mk_temper_device = MagicMock()
mk_temper_device.get_temperature.return_value = temp_f
mk_temperusb.TemperHandler.return_value.get_devices.return_value = \
[mk_temper_device]
thermometer = temper_usb.TEMPerThermometer()
self.assertEqual(thermometer.get_temperature(units='fahrenheit'),
temp_f)
mk_temper_device.get_temperature.assert_called_with(
format='fahrenheit')
def test_first_if_multiple_temper_detected(self, mk_temperusb):
"""First TEMPer device is detected if multiple present."""
mk_temper_device_1 = MagicMock()
mk_temper_device_2 = MagicMock()
mk_temper_device_3 = MagicMock()
mk_temperusb.TemperHandler.return_value.get_devices.return_value = [
mk_temper_device_1,
mk_temper_device_2,
mk_temper_device_3,
]
thermometer = temper_usb.TEMPerThermometer()
self.assertIs(thermometer._temper_device, mk_temper_device_1)
def test_temper_not_detected(self, mk_temperusb):
"""DeviceError raised if no TEMPer devices present."""
mk_temperusb.TemperHandler.return_value.get_devices.return_value = []
with self.assertRaises(DeviceError):
t = temper_usb.TEMPerThermometer()