def test_getattr_with_ref(self):
b = base.Units(raw=TEST_DICT_5)
ref = 'test_ref'
s = 'ft/lbs'
unit = b[s, ref]
self.assertEqual(unit.abbr, s)
self.assertEqual(unit._ref, ref)
def test_load_2(self):
b = base.Units(raw=TEST_DICT_2)
self.assertEqual(len(b.units), (1 + 2) * 2)
expected = {
1: 'length',
-1: '-length',
2: 'm',
-2: '-m',
3: 'mm',
-3: '-mm'
}
self.assertDictEqual(b._num_dct, expected)
expected = {
'length': 1,
'-length': -1,
'm': 2,
'-m': -2,
'mm': 3,
'-mm': -3
}
self.assertDictEqual(b._ind_dct, expected)
self.assertDictEqual(b.bases, {1: 2})
self.assertDictEqual(b._utypes, {
-3: -1,
-2: -1,
-1: -1,
1: 1,
2: 1,
3: 1
})
def test_from_str(self):
b = base.Units(raw=TEST_DICT_4)
n_current = len(b.units)
s = 'm/s2'
unit = b.from_str(s)
self.assertEqual(unit.abbr, s)
self.assertTrue(unit.abbr, b.units)
self.assertEqual(len(b.units), n_current + 2)
def test_str_spec(self):
b = base.Units(raw=TEST_DICT_4)
N_p_mm = b.N / b.mm
ind_N = b.N.spec[0]
ind_mm = b.mm.spec[0]
self.assertEqual(N_p_mm.value, 1000.0)
self.assertEqual(N_p_mm.abbr, None)
self.assertEqual(N_p_mm.spec, [ind_N, -ind_mm])
s = b.str_spec(N_p_mm.spec)
self.assertEqual(s, 'N/mm')
def test_load_3(self):
b = base.Units(raw=TEST_DICT_3)
self.assertEqual(len(b.units), (2 + 2) * 2)
expected = {
1: 'length',
-1: '-length',
2: 'area',
-2: '-area',
3: 'm',
-3: '-m',
4: 'm2',
-4: '-m2'
}
self.assertDictEqual(b._num_dct, expected)
expected = {
'length': 1,
'-length': -1,
'area': 2,
'-area': -2,
'm': 3,
'-m': -3,
'm2': 4,
'-m2': -4
}
self.assertDictEqual(b._ind_dct, expected)
self.assertDictEqual(b.bases, {1: 3, 2: 4})
self.assertDictEqual(b._utypes, {
-4: -2,
-3: -1,
-2: -2,
-1: -1,
1: 1,
2: 2,
3: 1,
4: 2
})
def test_from_str_3(self):
b = base.Units(raw=TEST_DICT_5)
s = 'ft/lbs'
unit = b.from_str(s)
self.assertEqual(unit.abbr, s)
self.assertAlmostEqual(unit.value, (12 * 0.0254) / (0.45359237))
def test_from_str_2(self):
b = base.Units(raw=TEST_DICT_5)
s = '1/lbs'
unit = b.from_str(s)
self.assertEqual(unit.abbr, s)
self.assertEqual(unit.value, 1 / 0.45359237)
def test_spec_from_str_5(self):
b = base.Units(raw=TEST_DICT_4)
s = 's2'
spec = b.spec_from_str(s)
check = b.str_spec(spec)
self.assertEqual(s, check)
def test_derive(self):
b = base.Units(raw=TEST_DICT_4)
spec = ['N', '-mm']
val, vec = b._derive(spec)
self.assertEqual(val, 1000.0)
self.assertTrue(np.allclose(vec, [0, 1, -2, 0]))
def test_get_by_index(self):
b = base.Units(raw=TEST_DICT_2)
ret = b.get_by_index(2)
self.assertEqual(ret, b.m)
ret = b.get_by_index(-3)
self.assertEqual(ret, b['-mm'])
def test_getitem_mm2(self):
b = base.Units(raw=TEST_DICT_2)
u = b['mm2']
self.assertEqual(u.value, 1e-6)
self.assertEqual(u.abbr, 'mm2')
def test_getitem_mm(self):
b = base.Units(raw=TEST_DICT_2)
u = b['mm']
self.assertEqual(u.value, 0.001)
self.assertEqual(u.abbr, 'mm')
def test_spec_mm(self):
b = base.Units(raw=TEST_DICT_2)
u = b.mm
self.assertEqual(u.value, 0.001)
mm_ind = b._ind('mm')
self.assertSequenceEqual(u.spec, [mm_ind])
def test_getattr_mm(self):
b = base.Units(raw=TEST_DICT_2)
u = b.mm
self.assertEqual(u.value, 0.001)
self.assertEqual(u.abbr, 'mm')