def test_case4_l3(self):
val = l(case4_f_x, e3, f_v=case4_f_v) - B(
case4_f_u_v, u=case4_u_shift, v=e3)
result = isclose(val, 1 / 6 + 1, abs_tol=EPSILON)
self.assertIs(result, True)
def test_case1_l2(self):
result = isclose(l(case1_f_x, e2, f_v=lambda v: 0),
1 / 3,
abs_tol=EPSILON)
self.assertIs(result, True)
def test_case4_l1(self):
val = l(case4_f_x, e1, f_v=case4_f_v) - B(
case4_f_u_v, u=case4_u_shift, v=e1)
result = isclose(val, 1 / 3 - 6 - 1 / 9, abs_tol=EPSILON)
self.assertIs(result, True)
def test_case3_l2(self):
val = l(case3_f_x, e2, f_v=case3_f_v)
result = isclose(val, 2 / 9, abs_tol=EPSILON)
self.assertIs(result, True)
def test_case3_l0(self):
val = l(case3_f_x, e0, f_v=case3_f_v)
result = isclose(val, 1 / 54 - 1, abs_tol=EPSILON)
self.assertIs(result, True)
def test_case2_l2(self):
val = l(case2_f_x, e2, f_v=lambda v: 0) - B(case2_f_u_v, u=e3, v=e2)
result = isclose(val, 2 / 9 - 3.5, abs_tol=EPSILON)
self.assertIs(result, True)
def test_case2_l1(self):
val = l(case2_f_x, e1, f_v=lambda v: 0) - B(case2_f_u_v, u=e3, v=e1)
result = isclose(val, 1 / 9, abs_tol=EPSILON)
self.assertIs(result, True)
