def test_eye():
qi = nq.eye()
yield assert_true, np.all([1,0,0,0]==qi)
yield assert_true, np.allclose(nq.quat2mat(qi), np.eye(3))
def test_norm():
qi = nq.eye()
yield assert_true, nq.norm(qi) == 1
yield assert_true, nq.isunit(qi)
qi[1] = 0.2
yield assert_true, not nq.isunit(qi)