def test_binary_false():
actual = array_binary_search(99, [1, 2, 3, 4, 5, 6, 7])
expected = -1
assert actual == expected
def test_binary_empty():
actual = array_binary_search(8, [])
expected = -1
assert actual == expected
def test_binary_true():
actual = array_binary_search(15, [4, 8, 15, 16, 23, 42])
expected = 2
assert actual == expected
def test_array_binary_search_1():
arr = [1, 2, 3, 4]
actual = array_binary_search(arr, 1)
expected = 0
assert actual == expected
def test_array_binary_search_14():
arr = [1, 2, 3, 4]
actual = array_binary_search(arr, 2.5)
expected = -1
assert actual == expected
def test_array_binary_search_11():
arr = [1, 2, 3, 4, 5]
actual = array_binary_search(arr, 0)
expected = -1
assert actual == expected
def test_array_binary_search_9():
arr = [1, 2, 3, 4, 5]
actual = array_binary_search(arr, 5)
expected = 4
assert actual == expected
def test_array_binary_search_8():
arr = [1, 2, 3, 4, 5]
actual = array_binary_search(arr, 4)
expected = 3
assert actual == expected
def test_array_binary_search_7():
arr = [1, 2, 3, 4, 5]
actual = array_binary_search(arr, 3)
expected = 2
assert actual == expected
def test_array_binary_search_2():
arr = [1, 2, 3, 4]
actual = array_binary_search(arr, 2)
expected = 1
assert actual == expected
