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import unittest
from tests.context import wind_chill, Temp
# format:
# (F, MPH): F
wind_chill_table = {
(40, 5): 36,
(40, 30): 28,
(40, 60): 25,
(15, 5): 7,
(15, 25): -4,
(15, 40): -8,
(15, 60): -11,
(0, 5): -11,
(0, 30): -26,
(0, 60): -33,
(-15, 35): -48,
(-15, 60): -55,
(-30, 5): -46,
(-30, 35): -69,
(-30, 60): -76,
(-45, 5): -63,
(-45, 35): -89,
(-45, 60): -98,
}
class WindChillTest(unittest.TestCase):
def test_wind_chill_by_table(self):
for temp_wind, wind_chill_f in wind_chill_table.items():
temp_f, wind_speed = temp_wind
self.assertEqual(
round(wind_chill(temp_f, wind_speed)), wind_chill_f)
def test_return_type(self):
self.assertIsInstance(wind_chill(40, 5), Temp)
self.assertIsInstance(wind_chill(-45, 60), Temp)
def test_input_temp_class(self):
wc = wind_chill(Temp(-15, unit='c'), 10)
self.assertIsInstance(wc, Temp)
self.assertEqual(round(wc.c), -23)
def test_temp50_wind4(self):
self.assertEqual(round(wind_chill(50, 4)), 49)
def test_temp50_wind3(self):
self.assertRaises(ValueError, wind_chill, 50, 3)
def test_temp51_wind3(self):
self.assertRaises(ValueError, wind_chill, 51, 3)
def test_temp51_wind4(self):
self.assertRaises(ValueError, wind_chill, 51, 4)
def test_temp100_wind60(self):
self.assertRaises(ValueError, wind_chill, 100, 60)
def test_temp0_wind0(self):
self.assertRaises(ValueError, wind_chill, 0, 0)
if __name__ == '__main__':
unittest.main()
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