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test_rkm_code.py
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test_rkm_code.py
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# encoding: utf8
from rkm_codes import (
set_prefs, from_rkm, to_rkm, find_rkm, IEC60062_MAPS, UNITLESS_MAPS
)
from quantiphy import Quantity
testcases = [
dict(maps=UNITLESS_MAPS, name='dampen', icode='R47', q='470m', ocode='470m', ocodeu='470m'),
dict(maps=UNITLESS_MAPS, name='monopoly', icode='Ω47', q='470 mΩ', ocode='470m', ocodeu='470mΩ'),
dict(maps=UNITLESS_MAPS, name='tappet', icode='4R7', q='4.7', ocode='4d7', ocodeu='4d7'),
dict(maps=UNITLESS_MAPS, name='requite', icode='4Ω7', q='4.7 Ω', ocode='4r7', ocodeu='4Ω7'),
dict(maps=UNITLESS_MAPS, name='revamp', icode='470R', q='470', ocode='470d', ocodeu='470d'),
dict(maps=UNITLESS_MAPS, name='caterer', icode='470Ω', q='470 Ω', ocode='470r', ocodeu='470Ω'),
dict(maps=UNITLESS_MAPS, name='strap', icode='4K7', q='4.7k', ocode='4K7', ocodeu='4K7'),
dict(maps=UNITLESS_MAPS, name='front', icode='4KΩ7', q='4.7 kΩ', ocode='4K7', ocodeu='4KΩ7'),
dict(maps=UNITLESS_MAPS, name='ensue', icode='47K', q='47k', ocode='47K', ocodeu='47K'),
dict(maps=UNITLESS_MAPS, name='spooky', icode='47K3', q='47.3k', ocode='47K', ocodeu='47K'),
dict(maps=UNITLESS_MAPS, name='surface', icode='470K', q='470k', ocode='470K', ocodeu='470K'),
dict(maps=UNITLESS_MAPS, name='remover', icode='4M7', q='4.7M', ocode='4M7', ocodeu='4M7'),
dict(maps=UNITLESS_MAPS, name='borrowing', icode='150nA', q='150 nA', ocode='150n', ocodeu='150nA'),
dict(maps=UNITLESS_MAPS, name='loofah', icode='2v5', q='2.5 V', ocode='2v5', ocodeu='2V5'),
dict(maps=UNITLESS_MAPS, name='scree', icode='2nA5A', q='2.5 nA', ocode='2n5', ocodeu='2nA5'),
dict(maps=UNITLESS_MAPS, name='socialite', icode='f220', q='220m', ocode='220m', ocodeu='220m'),
dict(maps=UNITLESS_MAPS, name='rehearsal', icode='2c', q='2', ocode='2d', ocodeu='2d'),
dict(maps=UNITLESS_MAPS, name='kilogram', icode='2c5', q='2.5', ocode='2d5', ocodeu='2d5'),
dict(maps=UNITLESS_MAPS, name='misinform', icode='2f', q='2', ocode='2d', ocodeu='2d'),
dict(maps=UNITLESS_MAPS, name='whetstone', icode='2f5', q='2.5', ocode='2d5', ocodeu='2d5'),
dict(maps=UNITLESS_MAPS, name='funny', icode='2pF5', q='2.5 pF', ocode='2p5', ocodeu='2pF5'),
dict(maps=UNITLESS_MAPS, name='shallot', icode='h220', q='220m', ocode='220m', ocodeu='220m'),
dict(maps=UNITLESS_MAPS, name='sniper', icode='2l', q='2', ocode='2d', ocodeu='2d'),
dict(maps=UNITLESS_MAPS, name='pajama', icode='2l5', q='2.5', ocode='2d5', ocodeu='2d5'),
dict(maps=UNITLESS_MAPS, name='prose', icode='2pH5', q='2.5 pH', ocode='2p5', ocodeu='2pH5'),
dict(maps=UNITLESS_MAPS, name='gaffe', icode='p2pH5', q='2.5 pH', ocode='2p5', ocodeu='2pH5'),
dict(maps=UNITLESS_MAPS, name='object', icode='n2pH5', q='-2.5 pH', ocode='n2p5', ocodeu='n2pH5'),
dict(maps=UNITLESS_MAPS, name='shuffle', icode='m2pH5', q='-2.5 pH', ocode='n2p5', ocodeu='n2pH5'),
dict(maps=IEC60062_MAPS, name='tilde', icode='R47', q='470 mΩ', ocode='470m', ocodeu='470mΩ'),
dict(maps=IEC60062_MAPS, name='circlet', icode='R47', q='470 mΩ', ocode='470m', ocodeu='470mΩ'),
dict(maps=IEC60062_MAPS, name='polygon', icode='4R7', q='4.7 Ω', ocode='4r7', ocodeu='4Ω7'),
dict(maps=IEC60062_MAPS, name='hacksaw', icode='470R', q='470 Ω', ocode='470r', ocodeu='470Ω'),
dict(maps=IEC60062_MAPS, name='spurt', icode='4K7', q='4.7 kΩ', ocode='4K7', ocodeu='4KΩ7'),
dict(maps=IEC60062_MAPS, name='corkscrew', icode='4K7Ω', q='4.7 kΩ', ocode='4K7', ocodeu='4KΩ7'),
dict(maps=IEC60062_MAPS, name='cemetery', icode='47K', q='47 kΩ', ocode='47K', ocodeu='47KΩ'),
dict(maps=IEC60062_MAPS, name='quintet', icode='47K3', q='47.3 kΩ', ocode='47K', ocodeu='47KΩ'),
dict(maps=IEC60062_MAPS, name='farthing', icode='470K', q='470 kΩ', ocode='470K', ocodeu='470KΩ'),
dict(maps=IEC60062_MAPS, name='rudder', icode='4M7', q='4.7 MΩ', ocode='4M7', ocodeu='4MΩ7'),
dict(maps=IEC60062_MAPS, name='clinch', icode='150nA', q='150 nA', ocode='150n', ocodeu='150nA'),
dict(maps=IEC60062_MAPS, name='pioneer', icode='2v5', q='2.5 v', ocode='2v5', ocodeu='2v5'),
dict(maps=IEC60062_MAPS, name='pretense', icode='2nA5', q='2.5 nA', ocode='2n5', ocodeu='2nA5'),
dict(maps=IEC60062_MAPS, name='caress', icode='f220', q='220a', ocode='220a', ocodeu='220a'),
dict(maps=IEC60062_MAPS, name='tassel', icode='2c', q='2 F', ocode='2c', ocodeu='2F'),
dict(maps=IEC60062_MAPS, name='hundred', icode='2c5', q='2.5 F', ocode='2c5', ocodeu='2F5'),
dict(maps=IEC60062_MAPS, name='speckle', icode='2f', q='2f', ocode='2f', ocodeu='2f'),
dict(maps=IEC60062_MAPS, name='pachyderm', icode='2f5', q='2.5f', ocode='2f5', ocodeu='2f5'),
dict(maps=IEC60062_MAPS, name='tight', icode='2pF5', q='2.5 pF', ocode='2p5', ocodeu='2pF5'),
dict(maps=IEC60062_MAPS, name='entree', icode='h220', q='220 mh', ocode='220m', ocodeu='220mh'),
dict(maps=IEC60062_MAPS, name='mannerism', icode='2l', q='2 mΩ', ocode='2m', ocodeu='2mΩ'),
dict(maps=IEC60062_MAPS, name='story', icode='2l5', q='2.5 mΩ', ocode='2m5', ocodeu='2mΩ5'),
dict(maps=IEC60062_MAPS, name='vexation', icode='2pH5', q='2.5 pH', ocode='2p5', ocodeu='2pH5'),
dict(maps=IEC60062_MAPS, name='grandpa', icode='l047', q='47 uΩ', ocode='47µ', ocodeu='47µΩ'), # using invalid sf
dict(maps=IEC60062_MAPS, name='stock', icode='l47', q='470 uΩ', ocode='470µ', ocodeu='470µΩ'), # using invalid sf
dict(maps=IEC60062_MAPS, name='speedwell', icode='4l7', q='4.7 mΩ', ocode='4m7', ocodeu='4mΩ7'),
dict(maps=IEC60062_MAPS, name='instinct', icode='47l', q='47 mΩ', ocode='47m', ocodeu='47mΩ'),
dict(maps=IEC60062_MAPS, name='discord', icode='470l', q='470 mΩ', ocode='470m', ocodeu='470mΩ'),
dict(maps=IEC60062_MAPS, name='eunuch', icode='r47', q='470 mΩ', ocode='470m', ocodeu='470mΩ'),
dict(maps=IEC60062_MAPS, name='jewel', icode='4r7', q='4.7 Ω', ocode='4r7', ocodeu='4Ω7'),
dict(maps=IEC60062_MAPS, name='mudguard', icode='47r', q='47 Ω', ocode='47r', ocodeu='47Ω'),
dict(maps=IEC60062_MAPS, name='kebab', icode='470r', q='470 Ω', ocode='470r', ocodeu='470Ω'),
dict(maps=IEC60062_MAPS, name='chomp', icode='k47', q='470 Ω', ocode='470r', ocodeu='470Ω'),
dict(maps=IEC60062_MAPS, name='gambol', icode='K47', q='470 Ω', ocode='470r', ocodeu='470Ω'),
dict(maps=IEC60062_MAPS, name='interject', icode='4k7', q='4.7 kΩ', ocode='4K7', ocodeu='4KΩ7'),
dict(maps=IEC60062_MAPS, name='thank', icode='4K7', q='4.7 kΩ', ocode='4K7', ocodeu='4KΩ7'),
dict(maps=IEC60062_MAPS, name='edify', icode='47k', q='47 kΩ', ocode='47K', ocodeu='47KΩ'),
dict(maps=IEC60062_MAPS, name='assistant', icode='47K', q='47 kΩ', ocode='47K', ocodeu='47KΩ'),
dict(maps=IEC60062_MAPS, name='voter', icode='470k', q='470 kΩ', ocode='470K', ocodeu='470KΩ'),
dict(maps=IEC60062_MAPS, name='brief', icode='470K', q='470 kΩ', ocode='470K', ocodeu='470KΩ'),
dict(maps=IEC60062_MAPS, name='gaiter', icode='M470', q='470 kΩ', ocode='470K', ocodeu='470KΩ'),
dict(maps=IEC60062_MAPS, name='plank', icode='4M70', q='4.7 MΩ', ocode='4M7', ocodeu='4MΩ7'),
dict(maps=IEC60062_MAPS, name='statesman', icode='47M', q='47 MΩ', ocode='47M', ocodeu='47MΩ'),
dict(maps=IEC60062_MAPS, name='suffuse', icode='470M', q='470 MΩ', ocode='470M', ocodeu='470MΩ'),
dict(maps=IEC60062_MAPS, name='trait', icode='G470', q='470 MΩ', ocode='470M', ocodeu='470MΩ'),
dict(maps=IEC60062_MAPS, name='daiquiri', icode='4G7', q='4.7 GΩ', ocode='4G7', ocodeu='4GΩ7'),
dict(maps=IEC60062_MAPS, name='reunion', icode='47G', q='47 GΩ', ocode='47G', ocodeu='47GΩ'),
dict(maps=IEC60062_MAPS, name='diatribe', icode='470G', q='470 GΩ', ocode='470G', ocodeu='470GΩ'),
dict(maps=IEC60062_MAPS, name='emerge', icode='4700G', q='4.7 TΩ', ocode='4T7', ocodeu='4TΩ7'), # uses invalid sf
dict(maps=IEC60062_MAPS, name='guardsman', icode='4MHz70', q='4.7 MHz', ocode='4M7', ocodeu='4MHz7'),
]
more_testcases = '''
470e-9Ω 0 0R 0Ω R0000
470nΩ 0 0R 0Ω R0000
4.7e-6Ω 0 0R 0Ω R0000
4.7µΩ 0 0R 0Ω R0000
4.7uΩ 0 0R 0Ω R0000
4.7μΩ 0 0R 0Ω R0000
47e-6Ω 0 0R 0Ω R0000
47µΩ 0 0R 0Ω R0000
47uΩ 0 0R 0Ω R0000
47μΩ 0 0R 0Ω R0000
470e-6Ω R0005 R0005 Ω0005 R0005
470µΩ R0005 R0005 Ω0005 R0005
470uΩ R0005 R0005 Ω0005 R0005
470μΩ R0005 R0005 Ω0005 R0005
4.7e-3Ω R0047 R0047 Ω0047 R0047
47e-3Ω R047 R047 Ω047 R0470
470e-3Ω R47 R47 Ω47 R4700
4.7Ω 4R7 4R7 4Ω7 4R7000
47Ω 47 47R 47Ω 47R000
470Ω 470 470R 470Ω 470R00
4.7kΩ 4K7 4K7 4KΩ7 4K7000
47kΩ 47K 47K 47KΩ 47K000
470kΩ 470K 470K 470KΩ 470K00
'''
def test_rkm_codes():
# set maps to their default behavior
set_prefs(
rkm_maps=None, units_to_rkm_base_code=None, map_sf=None,
show_units=None, strip_zeros=None, minus_sign=None, prec=None,
strip_code=False
)
# run tests
known_cases = set()
for case in testcases:
assert case['name'] not in known_cases, 'duplicate case {}'.format(case['name'])
known_cases.add(case['name'])
set_prefs(case['maps'])
maps = 'unitless' if case['maps'] == UNITLESS_MAPS else 'IEC60062'
q = from_rkm(case['icode'])
print(
maps,
case['icode'],
q,
to_rkm(q),
to_rkm(q, show_units=True),
sep=', '
)
assert str(q) == case['q'], case['name']
assert to_rkm(q) == case['ocode'], case['name']
assert to_rkm(q, show_units=True) == case['ocodeu'], case['name']
# return maps to their default behavior
set_prefs(rkm_maps=None, units_to_rkm_base_code=None, map_sf=None)
def test_misc():
# set maps to their default behavior
set_prefs(
rkm_maps=None, units_to_rkm_base_code=None, map_sf=None,
show_units=None, strip_zeros=None, minus_sign=None, prec=None,
strip_code=True
)
c = Quantity(2)
assert to_rkm(c) == '2'
assert to_rkm(c, strip_zeros=False) == '2d0'
assert to_rkm(c, strip_zeros=False, prec=5) == '2d00000'
c = Quantity(20)
assert to_rkm(c) == '20'
assert to_rkm(c, strip_zeros=False) == '20'
assert to_rkm(c, strip_zeros=False, prec=5) == '20d0000'
c = 20
assert to_rkm(c) == '20'
assert to_rkm(c, strip_zeros=False) == '20'
assert to_rkm(c, strip_zeros=False, prec=5) == '20d0000'
c = 20.0
assert to_rkm(c) == '20'
assert to_rkm(c, strip_zeros=False) == '20'
assert to_rkm(c, strip_zeros=False, prec=5) == '20d0000'
c = Quantity(2, units='Ω')
assert to_rkm(c) == '2'
assert to_rkm(c, strip_zeros=False) == '2r0'
assert to_rkm(c, strip_zeros=False, prec=5) == '2r00000'
c = Quantity(20, units='Ω')
assert to_rkm(c) == '20'
assert to_rkm(c, strip_zeros=False) == '20'
assert to_rkm(c, strip_zeros=False, prec=5) == '20r0000'
c = '20Ω'
assert to_rkm(c) == '20'
assert to_rkm(c, strip_zeros=False) == '20'
assert to_rkm(c, strip_zeros=False, prec=5) == '20r0000'
found = ', '.join(str(e) for e in find_rkm('sink200nA', 'ld'))
assert found == '200 nA'
found = ', '.join(str(e) for e in find_rkm('sink200nA', 'td'))
assert found == '200 msink'
found = ', '.join(str(e) for e in find_rkm('ib_n2nA5_vco', 'ld'))
assert found == '-2.5 nA'
found = ', '.join(str(e) for e in find_rkm('''
An RKM code that may include explicitly specified. Examples of
acceptable RKM codes for resistance include: R47 (0.47 Ω), 4R7
(4.7 Ω), 470R (470 Ω), 4K7 (4.7 kΩ), 47K (47 kΩ), 47K3 (47.3 kΩ),
470K (470 kΩ), and 4M7 (4.7 MΩ). Units may be added by appending
the units to the scale factor: 47KΩ3 (47.3 kΩ).
'''))
assert found == '470m, 4.7, 470, 4.7k, 47k, 47.3k, 470k, 4.7M, 47.3 kΩ'
# return maps to their default behavior
set_prefs(rkm_maps=None, units_to_rkm_base_code=None, map_sf=None)
def test_more_rkm_codes():
set_prefs(
rkm_maps=IEC60062_MAPS, units_to_rkm_base_code={'Ω': 'R'}, map_sf=None,
show_units=None, strip_zeros=None, strip_code=True, minus_sign=None,
prec=4
)
for line in more_testcases.splitlines():
if not line:
continue
q, a, b, c, d = line.split()
q = Quantity(q)
q.output_sf = 'TGMk'
assert a == to_rkm(q), 'sarong {}'.format(q)
assert b == to_rkm(q, strip_code=False), 'wader {}'.format(q)
assert c == to_rkm(q, show_units=True), 'footprint {}'.format(q)
assert d == to_rkm(q, strip_zeros=False), 'scabby {}'.format(q)
set_prefs(prec=1)
with Quantity.prefs(
map_sf = Quantity.map_sf_to_sci_notation,
spacer = Quantity.narrow_non_breaking_space,
plus = Quantity.plus_sign,
minus = Quantity.minus_sign
):
r = from_rkm('6k8')
assert r == Quantity('6.8 kΩ')
assert to_rkm(r) == '6K8'
c = Quantity('2.5 nF')
assert to_rkm(c) == '2n5'
c = from_rkm('4u7')
assert c == Quantity('4.7 μF')
assert to_rkm(c) == '4µ7'
c = Quantity('4.7 µF')
assert to_rkm(c) == '4µ7'
c = Quantity('4.7 uF')
assert to_rkm(c) == '4µ7'
c = Quantity('4.7 μF')
assert to_rkm(c) == '4µ7'
def test_contributed():
cases = [
# given expected
('1.0R', '1R'),
('1.2R', '1R2'),
('1.5R', '1R5'),
('1.8R', '1R8'),
('2.2R', '2R2'),
('2.7R', '2R7'),
('3.3R', '3R3'),
('3.9R', '3R9'),
('4.7R', '4R7'),
('5.6R', '5R6'),
('6.8R', '6R8'),
('8.2R', '8R2'),
('10.0R', '10R'),
('12.0R', '12R'),
('15.0R', '15R'),
('18.0R', '18R'),
('22.0R', '22R'),
('27.0R', '27R'),
('33.0R', '33R'),
('39.0R', '39R'),
('47.0R', '47R'),
('56.0R', '56R'),
('68.0R', '68R'),
('82.0R', '82R'),
('100.0R', '100R'),
('120.0R', '120R'),
('150.0R', '150R'),
('180.0R', '180R'),
('220.0R', '220R'),
('270.0R', '270R'),
('330.0R', '330R'),
('390.0R', '390R'),
('470.0R', '470R'),
('560.0R', '560R'),
('680.0R', '680R'),
('820.0R', '820R'),
('1000.0R', '1K'),
('1200.0R', '1K2'),
('1500.0R', '1K5'),
('1800.0R', '1K8'),
('2200.0R', '2K2'),
('2700.0R', '2K7'),
('3300.0R', '3K3'),
('3900.0R', '3K9'),
('4700.0R', '4K7'),
('5600.0R', '5K6'),
('6800.0R', '6K8'),
('8200.0R', '8K2'),
('10000.0R', '10K'),
]
for given, expected in cases:
result = to_rkm(given, prec=1, strip_code=False)
assert result == expected, given