def test_errors(self): def fake(x): raise Exception self.assertRaises(Exception,ex11.sum_functions(fake,abs),5) self.assertRaises(Exception,ex11.sub_functions(fake,abs),5) self.assertRaises(Exception,ex11.mul_functions(fake,abs),5) self.assertRaises(Exception,ex11.div_functions(fake,abs),5) self.assertRaises(Exception,ex11.compose(fake,abs),5) self.assertRaises(Exception,ex11.compose(abs,fake),5) self.assertRaises(Exception,ex11.inverse(fake),5) self.assertRaises(Exception,ex11.derivative(fake),5) self.assertRaises(Exception,ex11.integral_function(fake),5)
def test_compose(self): f = ex11.compose(math.sqrt, math.exp) self.assertAlmostEqual(f(9), math.exp(4.5)) self.assertAlmostEqual(f(-1 / 4), math.exp(-1 / 8))
def test_compose(self): f = ex11.compose(math.sqrt,math.exp) self.assertAlmostEqual(f(9),math.exp(4.5)) self.assertAlmostEqual(f(-1/4),math.exp(-1/8))