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import unittest
from . import calculate_swi
class CalculateSwi(unittest.TestCase):
def test_out_of_range(self):
samples = [
(20, -10),
(-10, 25000),
(20, 60000),
(41, 25000),
(41, -10),
]
for dt, depth in samples:
with self.assertRaises(ValueError):
calculate_swi(dt, depth)
def test_between(self):
samples = [
(6.53, 30000, 1, 2),
(10.78, 20500, -1, 0),
(24.45, 2600, 0, 1),
(7.22, 1300, -10, -9),
(16.1, 6200, 0, 1),
(3, 20000, -4, -3),
]
for dt, depth, low, high in samples:
swi = calculate_swi(dt, depth)
self.assertGreater(swi, low)
self.assertLess(swi, high)
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