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block: qcow: Add try_clone backend preservation tests

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Verify that try_clone preserves the backend dispatch for both
sync and io_uring backends.

Assisted-by: Claude:Opus-4.6
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
This commit is contained in:
Anatol Belski
2026-04-23 21:17:10 +02:00
committed by Rob Bradford
parent 9043098473
commit 5958872943
1 changed files with 17 additions and 0 deletions
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17
block/src/qcow_disk.rs
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@@ -237,4 +237,21 @@ mod unit_tests {
let disk = QcowDisk::new(file, false, false, true, true).unwrap();
assert_async_io(&disk, true);
}
#[test]
fn try_clone_preserves_sync_dispatch() {
let file = make_qcow_file();
let disk = QcowDisk::new(file, false, false, true, false).unwrap();
let cloned = disk.try_clone().unwrap();
assert_async_io_from_dyn(cloned.as_ref(), false);
}
#[cfg(feature = "io_uring")]
#[test]
fn try_clone_preserves_io_uring_dispatch() {
let file = make_qcow_file();
let disk = QcowDisk::new(file, false, false, true, true).unwrap();
let cloned = disk.try_clone().unwrap();
assert_async_io_from_dyn(cloned.as_ref(), true);
}
}