def test_array_reset():
array_ds = Stream('a', [1, 2, 3])
assert array_ds.next() == {'a': 1}
assert array_ds.next() == {'a': 2}
assert array_ds.next() == {'a': 3}
array_ds.reset()
assert array_ds.next() == {'a': 1}
assert array_ds.next() == {'a': 2}
assert array_ds.next() == {'a': 3}
def test_array_next():
array_ds = Stream('a', [1, 2, 3])
next_value = array_ds.next()
assert next_value == {'a': 1}