def test_ratint_logpart():
assert ratint_logpart(x, x ** 2 - 9, x, t) == [
(Poly(x ** 2 - 9, x), Poly(-2 * t + 1, t))
]
assert ratint_logpart(x ** 2, x ** 3 - 5, x, t) == [
(Poly(x ** 3 - 5, x), Poly(-3 * t + 1, t))
]
def test_ratint_logpart():
assert ratint_logpart(x, x**2 - 9, x, t) == \
[(Poly(x**2 - 9, x), Poly(-2*t + 1, t))]
assert ratint_logpart(x**2, x**3 - 5, x, t) == \
[(Poly(x**3 - 5, x), Poly(-3*t + 1, t))]
