def test_convert_invalid_unit(self):
"""Test exception is thrown for invalid units."""
with self.assertRaises(ValueError):
distance_util.convert(5, INVALID_SYMBOL, VALID_SYMBOL)
with self.assertRaises(ValueError):
distance_util.convert(5, VALID_SYMBOL, INVALID_SYMBOL)
def test_convert_invalid_unit(self):
"""Test exception is thrown for invalid units."""
with self.assertRaises(ValueError):
distance_util.convert(5, INVALID_SYMBOL, VALID_SYMBOL)
with self.assertRaises(ValueError):
distance_util.convert(5, VALID_SYMBOL, INVALID_SYMBOL)
def test_convert_from_meters(self):
"""Test conversion from meters to other units."""
m = 5000
self.assertEqual(distance_util.convert(m, LENGTH_METERS, LENGTH_FEET), 16404.2)
self.assertEqual(distance_util.convert(m, LENGTH_METERS, LENGTH_KILOMETERS), 5)
self.assertEqual(
distance_util.convert(m, LENGTH_METERS, LENGTH_MILES), 3.106855
)
def test_convert_same_unit(self):
"""Test conversion from any unit to same unit."""
self.assertEqual(
5, distance_util.convert(5, LENGTH_KILOMETERS, LENGTH_KILOMETERS)
)
self.assertEqual(2, distance_util.convert(2, LENGTH_METERS, LENGTH_METERS))
self.assertEqual(10, distance_util.convert(10, LENGTH_MILES, LENGTH_MILES))
self.assertEqual(9, distance_util.convert(9, LENGTH_FEET, LENGTH_FEET))
def test_convert_from_meters(self):
"""Test conversion from meters to other units."""
m = 5000
self.assertEqual(distance_util.convert(m, LENGTH_METERS, LENGTH_FEET),
16404.2)
self.assertEqual(
distance_util.convert(m, LENGTH_METERS, LENGTH_KILOMETERS), 5)
self.assertEqual(distance_util.convert(m, LENGTH_METERS, LENGTH_MILES),
3.106855)
def test_convert_same_unit(self):
"""Test conversion from any unit to same unit."""
self.assertEqual(
5, distance_util.convert(5, LENGTH_KILOMETERS, LENGTH_KILOMETERS))
self.assertEqual(
2, distance_util.convert(2, LENGTH_METERS, LENGTH_METERS))
self.assertEqual(10,
distance_util.convert(10, LENGTH_MILES, LENGTH_MILES))
self.assertEqual(9, distance_util.convert(9, LENGTH_FEET, LENGTH_FEET))
def test_convert_from_feet(self):
"""Test conversion from feet to other units."""
feet = 5000
self.assertEqual(
distance_util.convert(feet, LENGTH_FEET, LENGTH_KILOMETERS), 1.524
)
self.assertEqual(distance_util.convert(feet, LENGTH_FEET, LENGTH_METERS), 1524)
self.assertEqual(
distance_util.convert(feet, LENGTH_FEET, LENGTH_MILES), 0.9469694040000001
)
def test_convert_from_feet(self):
"""Test conversion from feet to other units."""
feet = 5000
self.assertEqual(
distance_util.convert(feet, LENGTH_FEET, LENGTH_KILOMETERS), 1.524)
self.assertEqual(
distance_util.convert(feet, LENGTH_FEET, LENGTH_METERS), 1524)
self.assertEqual(
distance_util.convert(feet, LENGTH_FEET, LENGTH_MILES),
0.9469694040000001)
def test_convert_from_miles(self):
"""Test conversion from miles to other units."""
miles = 5
self.assertEqual(
distance_util.convert(miles, LENGTH_MILES, LENGTH_KILOMETERS),
8.04672)
self.assertEqual(
distance_util.convert(miles, LENGTH_MILES, LENGTH_METERS), 8046.72)
self.assertEqual(
distance_util.convert(miles, LENGTH_MILES, LENGTH_FEET),
26400.0008448)
def test_convert_from_miles(self):
"""Test conversion from miles to other units."""
miles = 5
self.assertEqual(
distance_util.convert(miles, LENGTH_MILES, LENGTH_KILOMETERS), 8.04672
)
self.assertEqual(
distance_util.convert(miles, LENGTH_MILES, LENGTH_METERS), 8046.72
)
self.assertEqual(
distance_util.convert(miles, LENGTH_MILES, LENGTH_FEET), 26400.0008448
)
def length(self: object, length: float, from_unit: str) -> float:
"""Convert the given length to this unit system."""
if not isinstance(length, Number):
raise TypeError("{} is not a numeric value.".format(str(length)))
return distance_util.convert(length, from_unit,
self.length_unit) # type: float
def test_convert_nonnumeric_value(self):
"""Test exception is thrown for nonnumeric type."""
with self.assertRaises(TypeError):
distance_util.convert("a", LENGTH_KILOMETERS, LENGTH_METERS)
def test_convert_nonnumeric_value(self):
"""Test exception is thrown for nonnumeric type."""
with self.assertRaises(TypeError):
distance_util.convert("a", LENGTH_KILOMETERS, LENGTH_METERS)