def test_eq(self):
"""Tests the equality of different length classes."""
one_meter = Meter(1)
self.assertTrue(one_meter == Meter(1))
self.assertTrue(one_meter == 1)
self.assertTrue(one_meter == 1.0)
self.assertFalse(one_meter == Meter(2))
self.assertFalse(one_meter == CentiMeter(1))
self.assertFalse(one_meter == [1])
def test_ne(self):
"""Tests the not equality."""
one_meter = Meter(1)
self.assertFalse(one_meter != Meter(1))
self.assertFalse(one_meter != 1)
self.assertFalse(one_meter != 1.0)
self.assertTrue(one_meter != Meter(2))
self.assertTrue(one_meter != CentiMeter(1))
self.assertTrue(one_meter != [1])
def test_constructor(self):
"""Tests the constructors of the Length class."""
self.assertEqual(Day(Day(1)), Day(1))
self.assertEqual(Hour(Day(1)), Day(1))
self.assertEqual(Hour(Day(1)), Hour(24))
# TypeError
with self.assertRaises(TypeError):
Day('1')
with self.assertRaises(TypeError):
Day([1])
with self.assertRaises(TypeError):
Day({'value': 1})
with self.assertRaises(TypeError):
Day(Meter(1))
def test_constructor(self):
"""Tests the constructors of the Length class."""
self.assertEqual(KiloGram(KiloGram(1)), KiloGram(1))
self.assertEqual(Gram(KiloGram(1)), KiloGram(1))
self.assertEqual(KiloGram(Gram(1)), Gram(1))
# TypeError
with self.assertRaises(TypeError):
KiloGram('1')
with self.assertRaises(TypeError):
KiloGram([1])
with self.assertRaises(TypeError):
KiloGram({'value': 1})
with self.assertRaises(TypeError):
KiloGram(Meter(1))
def test_general(self):
"""Test some general behaviour of the Length superclass"""
one_meter = Meter(1)
# __pos__
self.assertEqual(Meter(5), +Meter(5))
# __neg__
self.assertEqual(Meter(-5), -Meter(5))
self.assertEqual(Meter(-3.33), -Meter(3.33))
# __copy__
self.assertEqual(one_meter, copy.deepcopy(one_meter))
# __deepcopy__
self.assertEqual(one_meter, copy.copy(one_meter))
def test_comparison(self):
"""Test the <, >, <= and >= operators."""
# __lt__
self.assertLess(Meter(1), Meter(2))
self.assertLess(Meter(1), CentiMeter(101))
self.assertLess(Meter(1), 2)
self.assertLess(Meter(0), 1)
self.assertLess(Meter(-1), 1)
with self.assertRaises(TypeError):
a = Meter(1) < [1]
with self.assertRaises(TypeError):
a = Meter(1) < Celsius(1)
# __gt__
self.assertGreater(Meter(1), Meter(0.5))
self.assertGreater(Meter(1), CentiMeter(1))
self.assertGreater(Meter(1), 0.5)
self.assertGreater(Meter(1), 0)
self.assertGreater(Meter(1), -1)
with self.assertRaises(TypeError):
a = Meter(1) > [1]
with self.assertRaises(TypeError):
a = Meter(1) > Celsius(1)
# __le__
self.assertLessEqual(Meter(1), Meter(2))
self.assertLessEqual(Meter(1), Meter(1))
self.assertLessEqual(Meter(1), CentiMeter(101))
self.assertLessEqual(Meter(1), CentiMeter(100))
self.assertLessEqual(Meter(1), 2)
self.assertLessEqual(Meter(1), 1)
self.assertLessEqual(Meter(0), 1)
self.assertLessEqual(Meter(0), 0)
self.assertLessEqual(Meter(-1), 1)
self.assertLessEqual(Meter(-1), -1)
with self.assertRaises(TypeError):
a = Meter(1) <= [1]
with self.assertRaises(TypeError):
a = Meter(1) <= Celsius(1)
# __ge__
self.assertGreaterEqual(Meter(1), Meter(0.5))
self.assertGreaterEqual(Meter(1), Meter(1))
self.assertGreaterEqual(Meter(1), CentiMeter(1))
self.assertGreaterEqual(Meter(1), CentiMeter(100))
self.assertGreaterEqual(Meter(1), 0.5)
self.assertGreaterEqual(Meter(1), 1)
self.assertGreaterEqual(Meter(1), 0)
self.assertGreaterEqual(Meter(0), 0)
self.assertGreaterEqual(Meter(-1), -1)
self.assertGreaterEqual(Meter(1), -1)
with self.assertRaises(TypeError):
a = Meter(1) >= [1]
with self.assertRaises(TypeError):
a = Meter(1) >= Celsius(1)
def test_round(self):
"""Tests the round(), math.floor() and math.ceil() functionality."""
# __round__
self.assertEqual(Meter(1), round(Meter(1.3)))
self.assertEqual(Meter(2), round(Meter(1.5)))
self.assertEqual(Meter(2), round(Meter(1.6)))
self.assertEqual(Meter(-1), round(Meter(-1.3)))
self.assertEqual(Meter(-2), round(Meter(-1.5)))
self.assertEqual(Meter(-2), round(Meter(-1.6)))
self.assertEqual(Meter(1.3), round(Meter(1.33), 1))
self.assertEqual(Meter(1.4), round(Meter(1.35), 1))
self.assertEqual(Meter(1.4), round(Meter(1.36), 1))
# __floor__
self.assertEqual(Meter(1), math.floor(Meter(1.3)))
self.assertEqual(Meter(1), math.floor(Meter(1.5)))
self.assertEqual(Meter(1), math.floor(Meter(1.6)))
self.assertEqual(Meter(-2), math.floor(Meter(-1.3)))
self.assertEqual(Meter(-2), math.floor(Meter(-1.5)))
self.assertEqual(Meter(-2), math.floor(Meter(-1.6)))
# __ceil__
self.assertEqual(Meter(2), math.ceil(Meter(1.3)))
self.assertEqual(Meter(2), math.ceil(Meter(1.5)))
self.assertEqual(Meter(2), math.ceil(Meter(1.6)))
self.assertEqual(Meter(-1), math.ceil(Meter(-1.3)))
self.assertEqual(Meter(-1), math.ceil(Meter(-1.5)))
self.assertEqual(Meter(-1), math.ceil(Meter(-1.6)))
def test_type_conversions(self):
"""Tests the conversion of types."""
# __int__
self.assertEqual(int(Meter(1.0)), 1)
self.assertEqual(int(Meter(1)), 1)
self.assertEqual(int(Meter(-1.0)), -1)
self.assertEqual(int(Meter(-1)), -1)
self.assertEqual(int(Meter(0)), 0)
self.assertEqual(int(Meter(0.0)), 0)
# __float__
self.assertEqual(float(Meter(1.0)), 1.0)
self.assertEqual(float(Meter(1)), 1.0)
self.assertEqual(float(Meter(-1.0)), -1.0)
self.assertEqual(float(Meter(-1)), -1.0)
self.assertEqual(float(Meter(0)), 0.0)
self.assertEqual(float(Meter(0.0)), 0.0)
# __bool__
self.assertTrue(bool(Meter(1)))
self.assertTrue(bool(Meter(-1)))
self.assertFalse(bool(Meter(0)))
# __nonzero__
self.assertTrue(Meter(1).__nonzero__())
self.assertTrue(Meter(-1).__nonzero__())
self.assertFalse(Meter(0).__nonzero__())
def test_div(self):
"""Test the division."""
# divide by numbers
self.assertEqual(Meter(21) / 3, Meter(7))
self.assertEqual(Meter(14) / 3.5, Meter(4))
self.assertEqual(Meter(21) / -3, Meter(-7))
self.assertEqual(Meter(14) / -3.5, Meter(-4))
self.assertEqual(Meter(0) / -3.5, Meter(0))
self.assertEqual(Meter(0) / 3.5, Meter(0))
# __idiv__
meter = Meter(1)
meter /= 2
self.assertEqual(meter, 0.5)
meter /= -1
self.assertEqual(meter, -0.5)
# zero division error
with self.assertRaises(ZeroDivisionError):
a = Meter(21) / 0
with self.assertRaises(ZeroDivisionError):
meter /= 0
# unsupported Types
with self.assertRaises(UnknownUnitDivisionError):
a = Meter(1) / Celsius(1)
with self.assertRaises(UnknownUnitDivisionError):
meter /= Celsius(1)
with self.assertRaises(UnknownUnitDivisionError):
a = '1' / Meter(1)
with self.assertRaises(TypeError):
a = Meter(1) / '1'
with self.assertRaises(TypeError):
a = Meter(1) / [1]
with self.assertRaises(TypeError):
a = Meter(1) / {'value': 1}
with self.assertRaises(TypeError):
meter /= '1'
def test_mul(self):
"""Tests the multiplication."""
# positive values
self.assertEqual(Meter(2) * 4.5, Meter(9))
self.assertEqual(Meter(2) * 4, Meter(8))
self.assertEqual(4.5 * Meter(2), Meter(9))
self.assertEqual(4 * Meter(2), Meter(8))
# negative values
self.assertEqual(Meter(2) * -4.5, Meter(-9))
self.assertEqual(-4.5 * Meter(2), Meter(-9))
self.assertEqual(Meter(-2) * 4.5, Meter(-9))
self.assertEqual(4.5 * Meter(-2), Meter(-9))
self.assertEqual(Meter(-2) * -4.5, Meter(9))
self.assertEqual(-4.5 * Meter(-2), Meter(9))
# zeros
self.assertEqual(Meter(0) * 4.5, Meter(0))
self.assertEqual(0 * Meter(2), Meter(0))
# __imul__
meter = Meter(1)
meter *= 2
self.assertEqual(meter, 2)
meter *= -1
self.assertEqual(meter, -2)
meter *= 0
self.assertEqual(meter, 0)
# unsupported Types
with self.assertRaises(UnknownUnitMultiplicationError):
a = Meter(1) * Celsius(1)
with self.assertRaises(UnknownUnitMultiplicationError):
meter *= Celsius(1)
with self.assertRaises(TypeError):
a = '1' * Meter(1)
with self.assertRaises(TypeError):
a = Meter(1) * '1'
with self.assertRaises(TypeError):
a = Meter(1) * [1]
with self.assertRaises(TypeError):
a = Meter(1) * {'value': 1}
with self.assertRaises(TypeError):
meter *= '1'
def test_sub(self):
"""Test the subtraction."""
# positive values
self.assertEqual(Meter(10) - 4.5, Meter(5.5))
self.assertEqual(Meter(10) - 4, Meter(6))
self.assertEqual(15.5 - Meter(10), Meter(5.5))
self.assertEqual(15 - Meter(10), Meter(5))
# negative values
self.assertEqual(Meter(2) - -4.5, Meter(6.5))
self.assertEqual(-4.5 - Meter(2), Meter(-6.5))
self.assertEqual(Meter(-2) - 4.5, Meter(-6.5))
self.assertEqual(4.5 - Meter(-2), Meter(6.5))
self.assertEqual(Meter(-2) - -4.5, Meter(2.5))
self.assertEqual(-4.5 - Meter(-2), Meter(-2.5))
# zeros
self.assertEqual(Meter(0) - 4.5, Meter(-4.5))
self.assertEqual(0 - Meter(2), Meter(-2))
# other unit of the same unit base type
meter = Meter(0)
self.assertEqual(Meter(1) - CentiMeter(100), 0)
self.assertEqual(0, Meter(1) - CentiMeter(100))
# __isub__
meter -= 1
self.assertEqual(meter, -1)
meter -= 0
self.assertEqual(meter, -1)
meter -= CentiMeter(100)
self.assertEqual(meter, -2)
# unsupported Types
with self.assertRaises(TypeError):
a = Meter(1) - Celsius(1)
with self.assertRaises(TypeError):
meter -= Celsius(1)
with self.assertRaises(TypeError):
meter -= '1'
with self.assertRaises(TypeError):
a = '1' - Meter(1)
with self.assertRaises(TypeError):
a = Meter(1) - '1'
with self.assertRaises(TypeError):
a = Meter(1) - [1]
with self.assertRaises(TypeError):
a = Meter(1) - {'value': 1}
def test_add(self):
"""Test the addition."""
# positive values
self.assertEqual(Meter(10) + 4.5, Meter(14.5))
self.assertEqual(Meter(10) + 4, Meter(14))
self.assertEqual(15.5 + Meter(10), Meter(25.5))
self.assertEqual(15 + Meter(10), Meter(25))
# negative values
self.assertEqual(Meter(2) + -4.5, Meter(-2.5))
self.assertEqual(-4.5 + Meter(2), Meter(-2.5))
self.assertEqual(Meter(-2) + 4.5, Meter(2.5))
self.assertEqual(4.5 + Meter(-2), Meter(2.5))
self.assertEqual(Meter(-2) + -4.5, Meter(-6.5))
self.assertEqual(-4.5 + Meter(-2), Meter(-6.5))
# zeros
self.assertEqual(Meter(0) + 4.5, Meter(4.5))
self.assertEqual(0 + Meter(2), Meter(2))
# other unit of the same unit base type
meter = Meter(0)
self.assertEqual(Meter(1) + CentiMeter(100), 2)
self.assertEqual(2, Meter(1) + CentiMeter(100))
# __iadd__
meter += 1
self.assertEqual(meter, 1)
meter += 0
self.assertEqual(meter, 1)
meter += CentiMeter(100)
self.assertEqual(meter, 2)
# unsupported Types
with self.assertRaises(TypeError):
a = Meter(1) + Celsius(1)
with self.assertRaises(TypeError):
meter += Celsius(1)
with self.assertRaises(TypeError):
meter += '1'
with self.assertRaises(TypeError):
a = '1' + Meter(1)
with self.assertRaises(TypeError):
a = Meter(1) + '1'
with self.assertRaises(TypeError):
a = Meter(1) + [1]
with self.assertRaises(TypeError):
a = Meter(1) + {'value': 1}