def test_shuffled_positive_only():
arr1 = [x for x in range(11)]
arr2 = [x for x in range(12, 21)]
arr = arr1 + arr2
random.shuffle(arr)
actual = find_smallest_positive_integer(arr)
assert actual == 11
def test_shuffled_pos_neg_zero():
arr1 = [x for x in range(-1, -11, -1)]
arr2 = [x for x in range(1, 101)]
arr = arr1 + arr2
random.shuffle(arr)
actual = find_smallest_positive_integer(arr)
assert actual == 101
def test_extreme_min_max():
arr = [1000000, -1000000]
actual = find_smallest_positive_integer(arr)
assert actual == 1
def test_extreme_negative_single():
arr = [-1000000]
actual = find_smallest_positive_integer(arr)
assert actual == 1
def test_example_1():
arr = [1, 3, 6, 4, 1, 2]
actual = find_smallest_positive_integer(arr)
assert actual == 5
def test_simple_single_neg():
arr = [-1]
actual = find_smallest_positive_integer(arr)
assert actual == 1
def test_all_neg():
arr = [-1, -3, -2]
actual = find_smallest_positive_integer(arr)
assert actual == 1
def test_simple():
arr = [2, 3, 4, 5]
actual = find_smallest_positive_integer(arr)
assert actual == 1
def test_example_2():
arr = [-1, -3]
actual = find_smallest_positive_integer(arr)
assert actual == 1
def test_duplicates_list():
arr = [5, 5, 5, 5]
actual = find_smallest_positive_integer(arr)
assert actual == 1
def test_empty_list():
arr = []
actual = find_smallest_positive_integer(arr)
assert actual == 1
def test_shuffled_negative_only():
arr = [x for x in range(-1, -11, -1)]
random.shuffle(arr)
actual = find_smallest_positive_integer(arr)
assert actual == 1