diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/basics/memoryview_slice_size.py | 27 | ||||
| -rw-r--r-- | tests/basics/memoryview_slice_size.py.exp | 2 |
2 files changed, 29 insertions, 0 deletions
diff --git a/tests/basics/memoryview_slice_size.py b/tests/basics/memoryview_slice_size.py new file mode 100644 index 000000000..c56514d21 --- /dev/null +++ b/tests/basics/memoryview_slice_size.py @@ -0,0 +1,27 @@ +# test memoryview slicing beyond the limit of what memoryview can internally index + +try: + from sys import maxsize + from uctypes import bytearray_at + + memoryview +except: + print("SKIP") + raise SystemExit + +if maxsize <= 0xFFFF_FFFF: + slice_max = 0xFF_FFFF +else: + slice_max = 0xFF_FFFF_FFFF_FFFF + +buf = bytearray_at(0, slice_max + 2) +mv = memoryview(buf) + +# this should work +print(mv[slice_max : slice_max + 1]) + +# this should overflow the internal index for memoryview slicing +try: + print(mv[slice_max + 1 : slice_max + 2]) +except OverflowError: + print("OverflowError") diff --git a/tests/basics/memoryview_slice_size.py.exp b/tests/basics/memoryview_slice_size.py.exp new file mode 100644 index 000000000..34baadd35 --- /dev/null +++ b/tests/basics/memoryview_slice_size.py.exp @@ -0,0 +1,2 @@ +<memoryview> +OverflowError |