def test_5_conversions(self):
"""Test if setting various attributes works appropriately."""
for celsius, fahrenheit, kelvin in zip(DEGREES_celsius,
DEGREES_FAHRENHEIT, KELVINS):
temperature = Temperature()
temperature.celsius = celsius
self.assertTrue(
equal_to_n_decimal_places(temperature.fahrenheit, fahrenheit,
4))
self.assertTrue(
equal_to_n_decimal_places(temperature.kelvin, kelvin, 4))
temperature.fahrenheit = fahrenheit
self.assertTrue(
equal_to_n_decimal_places(temperature.celsius, celsius, 4))
self.assertTrue(
equal_to_n_decimal_places(temperature.kelvin, kelvin, 4))
temperature.kelvin = kelvin
self.assertTrue(
equal_to_n_decimal_places(temperature.celsius, celsius, 4))
self.assertTrue(
equal_to_n_decimal_places(temperature.fahrenheit, fahrenheit,
4))
# All should raise TemperatureErrors
print('Trying to initialize with bad values')
for value in INVALID_TEMPERATURES:
try:
Temperature(value)
except TemperatureError:
print('Correct error raised for', value)
except Exception as e:
print(e, 'raised instead of TemperatureError for', value)
print()
print('Testing the setters')
print('Each of these values should be 0.0:')
try:
a = Temperature()
a.kelvin = 273.15
print(a.celsius)
a.kelvin = '273.15K'
print(a.celsius)
a.kelvin = '273.15'
print(a.celsius)
a.fahrenheit = 32.0
print(a.celsius)
a.fahrenheit = '32F'
print(a.celsius)
a.fahrenheit = '32'
print(a.celsius)
a.celsius = '0C'
print(a.celsius)
a.celsius = 0
print(a.celsius)
