test_pitheorem.py 文件源码

def test_inputs(self):
        V = 'km/hour'
        T = 'ms'
        L = 'cm'

        f1 = lambda x: x
        f2 = lambda x: self.Q_(1, x)
        f3 = lambda x: self.Q_(1, x).units
        f4 = lambda x: self.Q_(1, x).dimensionality

        fs = f1, f2, f3, f4
        for fv, ft, fl in itertools.product(fs, fs, fs):
            qv = fv(V)
            qt = ft(T)
            ql = ft(L)
            self.assertEqual(self.ureg.pi_theorem({'V': qv, 'T': qt, 'L': ql}),
                             [{'V': 1.0, 'T': 1.0, 'L': -1.0}])