def test_convert_sequence(self):
m = Unit('m')
ft = Unit('ft')
m2ft = m.get_converter(ft)
assert '3.28084*x' == m2ft.get_expression()
ft2m = Converter('ft',m)
assert '0.3048*a' == ft2m.get_expression('a')
sqm2sqft = (m*m).get_converter((ft*ft))
assert '10.7639*x' == sqm2sqft.get_expression()
inarr = np.array([2.8, 3.5, 19.2, 312])
# Verify output of m2ft is what we expect
outarr = m2ft(inarr)
np.testing.assert_array_almost_equal(outarr, np.array([9.186352, 11.48294, 62.992128, 1023.62208]), decimal=6)
# Verify output of ft2m is what we expect
outarr = ft2m(inarr)
np.testing.assert_array_almost_equal(outarr, np.array([0.85344, 1.0668 , 5.85216, 95.0976]), decimal=5)
outarr = sqm2sqft(inarr)
np.testing.assert_array_almost_equal(outarr, np.array([30.13892, 37.67365, 206.66688, 3358.3368]), decimal=5)
with pytest.raises(TypeError):
m.get_converter(None)
def test_convert_sequence(self):
m = Unit('m')
ft = Unit('ft')
m2ft = m.get_converter(ft)
assert '3.28084*x' == m2ft.get_expression()
ft2m = Converter('ft', m)
assert '0.3048*a' == ft2m.get_expression('a')
sqm2sqft = (m * m).get_converter((ft * ft))
assert '10.7639*x' == sqm2sqft.get_expression()
inarr = np.array([2.8, 3.5, 19.2, 312])
# Verify output of m2ft is what we expect
outarr = m2ft(inarr)
np.testing.assert_array_almost_equal(
outarr,
np.array([9.186352, 11.48294, 62.992128, 1023.62208]),
decimal=6)
# Verify output of ft2m is what we expect
outarr = ft2m(inarr)
np.testing.assert_array_almost_equal(
outarr, np.array([0.85344, 1.0668, 5.85216, 95.0976]), decimal=5)
outarr = sqm2sqft(inarr)
np.testing.assert_array_almost_equal(
outarr,
np.array([30.13892, 37.67365, 206.66688, 3358.3368]),
decimal=5)
with pytest.raises(TypeError):
m.get_converter(None)
def test_errors(self):
s = Unit('s')
min = Unit('min')
s2min = s.get_converter(min)
with pytest.raises(TypeError):
s2min.combine('10')
with pytest.raises(TypeError):
Converter(s, None)
with pytest.raises(TypeError):
fake = object
fake.this = None
Converter(s, fake)
def test_convert_ndarray(self):
lb2g = Converter('lb', 'g')
inarr = np.arange(10).reshape(2, 5)
valarr = np.array([[0.0, 453.592, 907.184, 1360.776, 1814.368],
[2267.96, 2721.552, 3175.144, 3628.736, 4082.328]])
outarr = lb2g(inarr)
assert outarr.shape == (2, 5)
np.testing.assert_array_almost_equal(outarr, valarr, decimal=3)
# Add an 'empty' outer dimension - this will get squeezed out!!
inarr2 = inarr.copy().reshape(1, 2, 5)
outarr2 = lb2g(inarr2)
assert outarr2.shape == (2, 5)
np.testing.assert_array_almost_equal(outarr2, valarr, decimal=3)
# Slice the array down to 1 value, it will come out as a single value
np.testing.assert_almost_equal(lb2g(inarr2[:, 1, 2]),
3175.144,
decimal=3)
def test_create(self):
day = Unit('day')
yr = Unit('yr')
day2yr = Converter(day,yr)
assert day2yr.get_expression() == '0.00273791*x'
def test_create(self):
day = Unit('day')
yr = Unit('yr')
day2yr = Converter(day, yr)
assert day2yr.get_expression() == '0.00273791*x'
