def test_b_summand_is_positive_when_j_is_higher_comparison_point(self):
res = b_summand(
f=self.default_f,
j=0,
comparison=self.default_comparison,
sigma=self.default_sigma,
)
self.assertAlmostEqual(res, .159290823)
def test_b_summand_is_negative_when_j_is_lower_comparison_point(self):
res = b_summand(
f=self.default_f,
j=2,
comparison=self.default_comparison,
sigma=self.default_sigma,
)
self.assertAlmostEqual(res, -.159290823)
def test_b_summand_is_0_when_j_not_in_comparison(self):
res = b_summand(
f=self.default_f,
j=1,
comparison=self.default_comparison,
sigma=self.default_sigma,
)
self.assertAlmostEqual(res, 0.0)