def test_arr_shift2(): actual = insert_shift_array([4, 8, 15, 23, 42], 16) expected = [4, 8, 15, 16, 23, 42] assert actual == expected
def test_arr_shift(): actual = insert_shift_array([2, 4, 6, 8], 5) expected = [2, 4, 5, 6, 8] assert actual == expected
def test_empty_none(): actual = insert_shift_array([], None) expected = [] assert actual == expected
def test_none_value(): actual = insert_shift_array([1, 2, 3, 4, 5], None) expected = [1, 2, 3, 4, 5] assert expected == actual
def test_empty_array(): actual = insert_shift_array([], 5) expected = [5] assert actual == expected
def test_expected_failure(): actual = insert_shift_array([5, 2, 7, 3], 3) expected = [3, 5, 2, 7, 3] assert actual == expected
def test_arr_shift3(): actual = insert_shift_array([1, 5, 10, 15], 20) expected = [20, 1, 5, 10, 15] assert actual != expected
def test_edge_case2(): actual = insert_shift_array([1, 2, 4], '5') expected = [1, 2, 4] assert actual == expected
def test_happy_path(): actual = insert_shift_array([1, 2, 4, 5], 3) expected = [1, 2, 3, 4, 5] assert actual == expected
def test_edge_case(): actual = insert_shift_array([], 5) expected = [5] assert actual == expected
def test_expected_failure2(): actual = insert_shift_array([2, 2, 2, 2], 5) expected = [2, 2, 2, 5, 2] assert actual == expected
def test_empty_array(): assert insert_shift_array([], 1) == [1]
def test_odd_length_array(): assert insert_shift_array([1, 2, 3], 4) == [1, 2, 4, 3]
def test_even_length_array(): assert insert_shift_array([1, 2, 3, 4], 5) == [1, 2, 5, 3, 4]