def test_to_multiple():
a = np.random.randn(10)
b = QA(a, 'm/s')
with raises(ValueError):
b.to('km/h', 'km/s')
def test_to_multiple():
a = np.random.randn(10)
b = QA(a, 'm/s')
with raises(ValueError):
b.to('km/h', 'km/s')
def test_to():
a = np.random.randn(10)
b = QA(a, 'mm')
c = b.to('m')
assert_almost_equal((c+c).view(np.ndarray)*1e3, a+a)
def test_to():
a = np.random.randn(10)
b = QA(a, 'mm')
c = b.to('m')
assert_almost_equal((c + c).view(np.ndarray) * 1e3, a + a)