diff options
| -rw-r--r-- | tests/qemu-iotests/iotests.py | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py index 936d33d..a4a2238 100644 --- a/tests/qemu-iotests/iotests.py +++ b/tests/qemu-iotests/iotests.py @@ -921,9 +921,17 @@ def qemu_pipe(*args): def supported_formats(read_only=False): '''Set 'read_only' to True to check ro-whitelist Otherwise, rw-whitelist is checked''' - format_message = qemu_pipe("-drive", "format=help") - line = 1 if read_only else 0 - return format_message.splitlines()[line].split(":")[1].split() + + if not hasattr(supported_formats, "formats"): + supported_formats.formats = {} + + if read_only not in supported_formats.formats: + format_message = qemu_pipe("-drive", "format=help") + line = 1 if read_only else 0 + supported_formats.formats[read_only] = \ + format_message.splitlines()[line].split(":")[1].split() + + return supported_formats.formats[read_only] def skip_if_unsupported(required_formats=[], read_only=False): '''Skip Test Decorator |