def test_quantity_in_sys(self):
unitty.setup('test', units_raw=TEST_DICT_5, sys_raw=TEST_SYSTEMS_1)
u = unitty.get_units('test')
q = 7 << u.ft / u.lbs
val, spec = q.in_sys()
self.assertAlmostEqual(val, 4.703782825976547)
self.assertEqual(spec, 'm/kg')
def test_quantity_in_sys_switch(self):
unitty.setup('test', units_raw=TEST_DICT_5, sys_raw=TEST_SYSTEMS_1)
u = unitty.get_units('test')
q = 7 << u.ft / u.lbs
unitty.set_system('US')
val, spec = q.in_sys()
self.assertEqual(val, 7)
self.assertEqual(spec, 'ft/lbs')
def test_quantity_by_ref(self):
unitty.setup('test', units_raw=TEST_DICT_10, sys_raw=TEST_SYSTEMS_1)
s = unitty.get_systems('test')
source = os.path.join(root, 'ref_set_1.csv')
s.set_refs(source)
u = unitty.get_units('test')
q = 7 << u['kg.s2/m']
q.set_ref('complex.value')
val, spec = q.by_ref()
self.assertEqual(val, 7)
self.assertEqual(spec, 'kg.s2/m')
def _round_trip(self, name):
u = unitty.get_units(name)
q = 2 << u.m / u.kg
val, spec = q.in_sys()
expected = 2
self.assertAlmostEqual(expected, val)
unitty.set_system('US')
val, spec = q.in_sys()
self.assertAlmostEqual(2.0, q.value)
expected = 2 * (1/(12*0.0254)) / (1/0.45359237) # 2.976327887139108
self.assertAlmostEqual(expected, val)
q2 = val << u.ft / u.lbs
val2, spec2 = q2.in_sys()
self.assertAlmostEqual(2.0, q2.value)
expected2 = 2 * (1/(12*0.0254)) / (1/0.45359237) # 2.976327887139108
self.assertAlmostEqual(expected2, val2)
unitty.set_system('metric')
val3, spec3 = q2.in_sys()
self.assertAlmostEqual(2.0, val3)
def test_quantity_val(self):
unitty.setup('test', units_raw=TEST_DICT_5, sys_raw=TEST_SYSTEMS_1)
u = unitty.get_units('test')
q = 7 << u.ft / u.lbs
self.assertAlmostEqual(q.value, 7 * (12*0.0254) / 0.45359237) # 4.703782825976547
def test_val(self):
unitty.setup('test', units_raw=TEST_DICT_5, sys_raw=TEST_SYSTEMS_1)
u = unitty.get_units('test')
q = 7 * u.ft / u.lbs
self.assertAlmostEqual(q, 7 * (12*0.0254) / 0.45359237)