def __init__(self, value=float()):
"""Create instance of the kelvin class.
:param value: (optional, int or float)
"""
super().__init__(name='Fahrenheit',
symbol='°F',
to_base=Conversion(5 / 9, -160 / 9),
from_base=Conversion(1.8, 32),
value=value)
def __init__(self, value=float()):
"""Create instance of the Ton class.
:param value: (optional, int or float) the amount of days
"""
super().__init__(name='Ton', symbol='ton (UK)', to_base=Conversion(1016.047), value=value)
def __init__(self, value=float()):
"""Create instance of the Seconds class.
:param value: (optional, int or float) the amount of years
"""
super().__init__(name='Seconds', symbol='s', to_base=Conversion(1 / 86400), value=value)
def __init__(self, value=float()):
"""Create instance of the Minute class.
:param value: (optional, int or float) the amount of years
"""
super().__init__(name='Minute', symbol='min', to_base=Conversion(1 / 1440), value=value)
def __init__(self, value=float()):
"""Create instance of the Week class.
:param value: (optional, int or float) the amount of weeks
"""
super().__init__(name='Week', symbol='w', to_base=Conversion(7), value=value)
def __init__(self, value=float()):
"""Create instance of the Hour class.
:param value: (optional, int or float) the amount of years
"""
super().__init__(name='Hour', symbol='h', to_base=Conversion(1 / 24), value=value)
def __init__(self, value=float()):
"""Create instance of the Mole class.
:param value: (optional, int or float) the amount of Moles
"""
super().__init__(name='Mole', symbol='mol', to_base=Conversion(), value=value)
def __init__(self, value=float()):
"""Create instance of the Day class.
:param value: (optional, int or float) the amount of days
"""
super().__init__(name='Day', symbol='d', to_base=Conversion(), value=value)
def __init__(self, value=float()):
"""Create instance of the Tonne class.
:param value: (optional, int or float) the amount of days
"""
super().__init__(name='Ounce', symbol='oz', to_base=Conversion(0.02834952), value=value)
def __init__(self, value=float()):
"""Create instance of the Tonne class.
:param value: (optional, int or float) the amount of days
"""
super().__init__(name='Pound', symbol='lbs', to_base=Conversion(0.45359237), value=value)
def __init__(self, value=float()):
"""Create instance of the kelvin class.
:param value: (optional, int or float)
"""
super().__init__(name='Kelvin',
symbol='K',
to_base=Conversion(1, -273.15),
value=value)
def __init__(self, value=float()):
"""Create instance of the Candela class.
:param value: (optional, int or float) the amount of Candela
"""
super().__init__(name='Candela',
symbol='cd',
to_base=Conversion(),
value=value)
def __init__(self, value=float()):
"""Create instance of the meter class.
:param value: (optional, int or float
"""
super().__init__(name='Inch',
symbol='inch',
to_base=Conversion(0.0254),
value=value)
def __init__(self, value=float()):
"""Create instance of the meter class.
:param value: (optional, int or float
"""
super().__init__(name='Yard',
symbol='yrd',
to_base=Conversion(0.914399909),
value=value)
def test_invert(self):
"""Tests the invert functionality."""
# non zero
conv = Conversion(factor=2, offset=3)
conv_inv = copy.copy(conv).__invert__()
self.assertEqual(conv_inv.factor, 1 / conv.factor)
self.assertEqual(conv_inv.offset, -conv.offset / conv.factor)
# zero factpr
conv = Conversion(factor=0, offset=1)
conv_inv = copy.copy(conv).__invert__()
self.assertEqual(conv_inv.factor, 0)
self.assertEqual(conv_inv.offset, -conv.offset)
# zero offset
conv = Conversion(factor=2, offset=0)
conv_inv = copy.copy(conv).__invert__()
self.assertEqual(conv_inv.factor, 1 / conv.factor)
self.assertEqual(conv_inv.offset, 0)
def test_general(self):
"""Test some general behaviour of the Length superclass"""
conv = Conversion(factor=2, offset=3)
# __eq__
self.assertTrue(conv == Conversion(factor=2, offset=3))
self.assertFalse(conv == Conversion(factor=1, offset=3))
self.assertFalse(conv == Conversion(factor=2, offset=2))
self.assertFalse(conv == 1)
# __ne__
self.assertFalse(conv != Conversion(factor=2, offset=3))
self.assertTrue(conv != Conversion(factor=1, offset=3))
self.assertTrue(conv != Conversion(factor=2, offset=2))
self.assertTrue(conv != 1)
# __copy__
self.assertEqual(conv, copy.deepcopy(conv))
# __deeepcopy__
self.assertEqual(conv, copy.copy(conv))
class Candela(Luminous):
"""A Candela. You know. The luminous intensity, in a given direction,
of a source that emits monochromatic radiation of frequency 540 × 1012 hertz
and that has a radiant intensity in that direction of 1/683 watts per steridian."""
def __init__(self, value=float()):
"""Create instance of the Candela class.
:param value: (optional, int or float) the amount of Candela
"""
super().__init__(name='Candela',
symbol='cd',
to_base=Conversion(),
value=value)
# define all SI derives of lengths
for name, symbol, base10 in SI_PREFIXES:
class_name = '{}Candela'.format(name)
# generate the new class
generatedClass = class_factory(BaseClass=Luminous,
name=class_name,
symbol=symbol,
to_base=Conversion(base10))
# register the class to the module
globals()[generatedClass.__name__] = generatedClass
# get rid of the temporary stuff
del generatedClass
def test_convert(self):
"""Tests the convert method."""
# both positive
conv = Conversion(factor=2, offset=3)
self.assertEqual(conv.convert(4), 11)
self.assertEqual(conv.convert(4.5), 12)
self.assertEqual(conv.convert(0), 3)
self.assertEqual(conv.convert(-4), -5)
self.assertEqual(conv.convert(-4.5), -6)
# factor negative
conv = Conversion(factor=-2, offset=3)
self.assertEqual(conv.convert(4), -5)
self.assertEqual(conv.convert(4.5), -6)
self.assertEqual(conv.convert(0), 3)
self.assertEqual(conv.convert(-4), 11)
self.assertEqual(conv.convert(-4.5), 12)
# offset negative
conv = Conversion(factor=2, offset=-3)
self.assertEqual(conv.convert(4), 5)
self.assertEqual(conv.convert(4.5), 6)
self.assertEqual(conv.convert(0), -3)
self.assertEqual(conv.convert(-4), -11)
self.assertEqual(conv.convert(-4.5), -12)
# both negative
conv = Conversion(factor=-2, offset=-3)
self.assertEqual(conv.convert(4), -11)
self.assertEqual(conv.convert(4.5), -12)
self.assertEqual(conv.convert(0), -3)
self.assertEqual(conv.convert(-4), 5)
self.assertEqual(conv.convert(-4.5), 6)
# factor 0
conv = Conversion(factor=0, offset=3)
self.assertEqual(conv.convert(4), 3)
self.assertEqual(conv.convert(4.5), 3)
self.assertEqual(conv.convert(0), 3)
self.assertEqual(conv.convert(-4), 3)
self.assertEqual(conv.convert(-4.5), 3)
# offset 0
conv = Conversion(factor=2, offset=0)
self.assertEqual(conv.convert(4), 8)
self.assertEqual(conv.convert(4.5), 9)
self.assertEqual(conv.convert(0), 0)
self.assertEqual(conv.convert(-4), -8)
self.assertEqual(conv.convert(-4.5), -9)
# both 0
conv = Conversion(factor=0, offset=0)
self.assertEqual(conv.convert(4), 0)
self.assertEqual(conv.convert(4.5), 0)
self.assertEqual(conv.convert(0), 0)
self.assertEqual(conv.convert(-4), 0)
self.assertEqual(conv.convert(-4.5), 0)