def test_from_matrix(self):
# Create a non-identity matrix from a different constructor that we
# assume works
# Create new rotation with that matrix.
# New rotation to_matrix method should produce the same matrix
pre_r = RotationD([+2, -1, -3, +0])
mat = pre_r.matrix()
r = RotationD(mat)
numpy.testing.assert_allclose(mat, r.matrix(), 1e-15)
def test_to_matrix(self):
# Default value should be identity
rot_d = RotationD()
numpy.testing.assert_array_equal(rot_d.matrix(), numpy.eye(3))
rot_f = RotationF()
numpy.testing.assert_array_equal(rot_f.matrix(), numpy.eye(3))