def test_parabolic(self):
"""Approximate y=x**2"""
x = 0.
x0 = -1.
x1 = 1.
y0 = 1.
dy0 = -2.
y1 = 1.
dy1 = 2.
y = hermite_spline(x, x0, x1, y0, dy0, y1, dy1)
self.assertEqual(y, 0.0)
def test_linear(self):
""""Approximate y = x - 1"""
x = 1.
x0 = 0.
x1 = 2.
y0 = -1.
dy0 = 1.
y1 = 1.
dy1 = 1.
y = hermite_spline(x, x0, x1, y0, dy0, y1, dy1)
self.assertEqual(y, 0.0)