Method ftest

Lib/test/test_math.py:247–258

Compare arguments expected and got, as floats, if either is a float, using a tolerance expressed in multiples of ulp(expected) or absolutely, whichever is greater. As a convenience, when neither argument is a float, and for non-finite floats, exact equality is demand

(self, name, got, expected, ulp_tol=5, abs_tol=0.0)

class MathTests(unittest.TestCase):

    def ftest(self, name, got, expected, ulp_tol=5, abs_tol=0.0):
        """Compare arguments expected and got, as floats, if either
        is a float, using a tolerance expressed in multiples of
        ulp(expected) or absolutely, whichever is greater.

        As a convenience, when neither argument is a float, and for
        non-finite floats, exact equality is demanded. Also, nan==nan
        in this function.
        """
        failure = result_check(expected, got, ulp_tol, abs_tol)
        if failure is not None:
            self.fail("{}: {}".format(name, failure))

    def testConstants(self):
        # Ref: Abramowitz & Stegun (Dover, 1965)