def test_reflective_transformation():
lb = np.array([-1, -2], dtype=float)
ub = np.array([5, 3], dtype=float)
y = np.array([0, 0])
x, g = reflective_transformation(y, lb, ub)
assert_equal(x, y)
assert_equal(g, np.ones(2))
y = np.array([-4, 4], dtype=float)
x, g = reflective_transformation(y, lb, np.array([np.inf, np.inf]))
assert_equal(x, [2, 4])
assert_equal(g, [-1, 1])
x, g = reflective_transformation(y, np.array([-np.inf, -np.inf]), ub)
assert_equal(x, [-4, 2])
assert_equal(g, [1, -1])
x, g = reflective_transformation(y, lb, ub)
assert_equal(x, [2, 2])
assert_equal(g, [-1, -1])
lb = np.array([-np.inf, -2])
ub = np.array([5, np.inf])
y = np.array([10, 10], dtype=float)
x, g = reflective_transformation(y, lb, ub)
assert_equal(x, [0, 10])
assert_equal(g, [-1, 1])
def test_reflective_transformation():
lb = np.array([-1, -2], dtype=float)
ub = np.array([5, 3], dtype=float)
y = np.array([0, 0])
x, g = reflective_transformation(y, lb, ub)
assert_equal(x, y)
assert_equal(g, np.ones(2))
y = np.array([-4, 4], dtype=float)
x, g = reflective_transformation(y, lb, np.array([np.inf, np.inf]))
assert_equal(x, [2, 4])
assert_equal(g, [-1, 1])
x, g = reflective_transformation(y, np.array([-np.inf, -np.inf]), ub)
assert_equal(x, [-4, 2])
assert_equal(g, [1, -1])
x, g = reflective_transformation(y, lb, ub)
assert_equal(x, [2, 2])
assert_equal(g, [-1, -1])
lb = np.array([-np.inf, -2])
ub = np.array([5, np.inf])
y = np.array([10, 10], dtype=float)
x, g = reflective_transformation(y, lb, ub)
assert_equal(x, [0, 10])
assert_equal(g, [-1, 1])