def test__singular_unit(self):
m_dim = Dimension(0, 1, 0, 0, 0, 0, 0)
m = SingularUnit('metre',
'm',
m_dim,
identifier=OM.NAMESPACE + 'metre')
self.assertEqual('metre', m.label().value)
self.assertEqual('m', m.symbol().value)
self.assertEqual(
'http://www.ontology-of-units-of-measure.org/resource/om-2/metre',
str(m.identifier))
self.assertEqual(m_dim, m.dimensions)
def test_singular_unit_conversion(self):
m_dim = Dimension(0, 1, 0, 0, 0, 0, 0)
m = SingularUnit('metre',
'm',
m_dim,
identifier=OM.NAMESPACE + 'metre')
inch = SingularUnit('inch',
'\'',
base_unit=m,
factor=2.54e-2,
identifier=OM.NAMESPACE + 'inch')
m_to_inch_factor = Unit.conversion_factor(m, inch)
self.assertEqual(2.54e-2, m_to_inch_factor)
inch_to_m_factor = Unit.conversion_factor(inch, m)
self.assertEqual(39.3700787, inch_to_m_factor)
def test__unit_multiplication(self):
m_dim = Dimension(0, 1, 0, 0, 0, 0, 0)
t_dim = Dimension(1, 0, 0, 0, 0, 0, 0)
m = SingularUnit('metre',
'm',
m_dim,
identifier=OM.NAMESPACE + 'metre')
s = SingularUnit('second',
's',
t_dim,
identifier=OM.NAMESPACE + 'second')
ms = UnitMultiplication(m, s)
ms_dim = Dimension(1, 1, 0, 0, 0, 0, 0)
self.assertTrue(ms.label() is None)
self.assertEqual('m.s', ms.symbol().value)
self.assertEqual(ms_dim, ms.dimensions)
def test__unit_compound_1(self):
m_dim = Dimension(0, 1, 0, 0, 0, 0, 0)
t_dim = Dimension(1, 0, 0, 0, 0, 0, 0)
m = SingularUnit('metre',
'm',
m_dim,
identifier=OM.NAMESPACE + 'metre')
s = SingularUnit('second',
's',
t_dim,
identifier=OM.NAMESPACE + 'second')
ss = UnitMultiplication(s, s)
ms2 = UnitDivision(m, ss)
ms2_dim = Dimension(-2, 1, 0, 0, 0, 0, 0)
self.assertTrue(ms2.label() is None)
self.assertEqual('m/(s.s)', ms2.symbol().value)
self.assertEqual(ms2_dim, ms2.dimensions)
def test_unit_get(self):
m_dim = Dimension(0, 1, 0, 0, 0, 0, 0)
t_dim = Dimension(1, 0, 0, 0, 0, 0, 0)
m = SingularUnit('metre',
'm',
m_dim,
identifier=OM.NAMESPACE + 'metre')
s = SingularUnit('second',
's',
t_dim,
identifier=OM.NAMESPACE + 'second')
units = Unit.with_label("metre")
self.assertEqual(1, len(units))
self.assertEqual('metre', units[0].label().value)
self.assertEqual('m', units[0].symbol().value)
self.assertEqual(
'http://www.ontology-of-units-of-measure.org/resource/om-2/metre',
str(units[0].identifier))
self.assertEqual(m_dim, units[0].dimensions)
def test__unit_exponentiation(self):
m_dim = Dimension(0, 1, 0, 0, 0, 0, 0)
m = SingularUnit('metre',
'm',
m_dim,
identifier=OM.NAMESPACE + 'metre')
m3 = UnitExponentiation(m, 3)
m3_dim = Dimension(0, 3, 0, 0, 0, 0, 0)
self.assertTrue(m3.label() is None)
self.assertEqual('m3', m3.symbol().value)
self.assertEqual(m3_dim, m3.dimensions)
def test__unit_multiple(self):
m_dim = Dimension(0, 1, 0, 0, 0, 0, 0)
m = SingularUnit('metre',
'm',
m_dim,
identifier=OM.NAMESPACE + 'metre')
km = PrefixedUnit(SI.KILO, m, OM.NAMESPACE + 'kilometre')
km100 = UnitMultiple(km, 100.0, symbol='100km')
self.assertEqual('100.0 kilometre', km100.label().value)
self.assertEqual('100km', km100.symbol().value)
self.assertEqual(m_dim, km100.dimensions)
def test__unit_division(self):
m_dim = Dimension(0, 1, 0, 0, 0, 0, 0)
m = SingularUnit('metre',
'm',
m_dim,
identifier=OM.NAMESPACE + 'metre')
km = PrefixedUnit(SI.KILO, m, OM.NAMESPACE + 'kilometre')
m_per_km = UnitDivision(m, km)
m_per_km_dim = Dimension(0, 0, 0, 0, 0, 0, 0)
self.assertTrue(m_per_km.label() is None)
self.assertEqual('m/km', m_per_km.symbol().value)
self.assertEqual(m_per_km_dim, m_per_km.dimensions)
def test__prefixed_unit(self):
m_dim = Dimension(0, 1, 0, 0, 0, 0, 0)
m = SingularUnit('metre',
'm',
m_dim,
identifier=OM.NAMESPACE + 'metre')
km = PrefixedUnit(SI.KILO, m, OM.NAMESPACE + 'kilometre')
self.assertEqual('kilometre', km.label().value)
self.assertEqual('km', km.symbol().value)
self.assertEqual(
'http://www.ontology-of-units-of-measure.org/resource/om-2/kilometre',
str(km.identifier))
self.assertEqual(m_dim, km.dimensions)
dim3 = dim1 + dim2
print('Added dimensions: {}'.format(dim3))
try:
dim4 = time_dim + dim2
print('Added dimensions: {}'.format(dim4))
except DimensionalException as error:
print(error)
try:
dim4 = time_dim - dim2
print('Subtracted dimensions: {}'.format(dim4))
except DimensionalException as error:
print(error)
dim4 = dim1 * dim2
print('Multiplied dimensions: {}'.format(dim4))
dim5 = time_dim / dim2
print('Divided dimensions: {}'.format(dim5))
m = SingularUnit('metre',
'm',
Dimension(0, 1, 0, 0, 0, 0, 0),
identifier=OM.NAMESPACE + 'metre')
print('Singular Unit: {}'.format(m))
km = PrefixedUnit(SI.KILO, m, OM.NAMESPACE + 'kilometre')
print('Prefixed Unit: {}'.format(km))
km100 = UnitMultiple(km, 100.0, symbol='100km')
print('Unit Multiple: {}'.format(km100))
mpkm = UnitDivision(m, km)
print('Unit Division: {}'.format(mpkm))