WPT
wpt / fs / FileSystemFileHandle-sync-access-handle-lock-modes.https.tentative.worker.html
Spec: File System ↗
Runs: Chrome 155.0.8042.0 (wpt@0588f3896, 2026-09-04) | Firefox 157.0a1 (wpt@0588f3896, 2026-09-04) | Safari 251 preview (wpt@e7122b73f, 2026-09-04) | Ladybird 1.0-b1af2 (wpt@0588f3896, 2026-09-04) | Servo Servo 0.6 (wpt@2c385f65e, 2026-09-04) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)
View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi
| Chrome | Firefox | Safari | Ladybird | Servo | Blitz | |
|---|---|---|---|---|---|---|
| Total | 33/33 | 22/33 | 11/33 | 0/33 | 0/33 | NOT RUN |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| A sync access handle opens in readwrite mode by default | PASS | FAIL | FAIL | FAIL | FAIL | — |
| An access handle in readwrite mode has a mode property equal to readwrite | PASS | FAIL | FAIL | FAIL | FAIL | — |
| An access handle in readwrite mode takes a lock that is exclusive | PASS | PASS | FAIL | FAIL | FAIL | — |
| An access handle in readwrite mode is writable | PASS | PASS | PASS | FAIL | FAIL | — |
| When there's an open access handle in readwrite mode on a file, can open another access handle in readwrite on a different file | PASS | PASS | PASS | FAIL | FAIL | — |
| When there's an open access handle in readwrite mode on a file, cannot open another access handle in readwrite on that same file | PASS | PASS | FAIL | FAIL | FAIL | — |
| After an access handle in readwrite mode on a file has been closed, can open another access handle in readwrite on the same file | PASS | PASS | FAIL | FAIL | FAIL | — |
| When there's an open access handle in readwrite mode on a file, can open another access handle in read-only on a different file | PASS | PASS | PASS | FAIL | FAIL | — |
| When there's an open access handle in readwrite mode on a file, cannot open another access handle in read-only on that same file | PASS | PASS | FAIL | FAIL | FAIL | — |
| After an access handle in readwrite mode on a file has been closed, can open another access handle in read-only on the same file | PASS | PASS | FAIL | FAIL | FAIL | — |
| When there's an open access handle in readwrite mode on a file, can open another access handle in readwrite-unsafe on a different file | PASS | PASS | PASS | FAIL | FAIL | — |
| When there's an open access handle in readwrite mode on a file, cannot open another access handle in readwrite-unsafe on that same file | PASS | PASS | FAIL | FAIL | FAIL | — |
| After an access handle in readwrite mode on a file has been closed, can open another access handle in readwrite-unsafe on the same file | PASS | PASS | FAIL | FAIL | FAIL | — |
| An access handle in read-only mode has a mode property equal to read-only | PASS | FAIL | FAIL | FAIL | FAIL | — |
| An access handle in read-only mode takes a lock that is shared | PASS | FAIL | FAIL | FAIL | FAIL | — |
| An access handle in read-only mode is not writable | PASS | FAIL | FAIL | FAIL | FAIL | — |
| When there's an open access handle in read-only mode on a file, can open another access handle in readwrite on a different file | PASS | PASS | PASS | FAIL | FAIL | — |
| When there's an open access handle in read-only mode on a file, cannot open another access handle in readwrite on that same file | PASS | PASS | FAIL | FAIL | FAIL | — |
| After all access handles in read-only mode on a file has been closed, can open another access handle in readwrite on the same file | PASS | FAIL | FAIL | FAIL | FAIL | — |
| When there's an open access handle in read-only mode on a file, can open another access handle in read-only on a different file | PASS | PASS | PASS | FAIL | FAIL | — |
| When there's an open access handle in read-only mode on a file, can open another access handle in readwrite-unsafe on a different file | PASS | PASS | PASS | FAIL | FAIL | — |
| When there's an open access handle in read-only mode on a file, cannot open another access handle in readwrite-unsafe on that same file | PASS | PASS | FAIL | FAIL | FAIL | — |
| After all access handles in read-only mode on a file has been closed, can open another access handle in readwrite-unsafe on the same file | PASS | FAIL | FAIL | FAIL | FAIL | — |
| An access handle in readwrite-unsafe mode has a mode property equal to readwrite-unsafe | PASS | FAIL | FAIL | FAIL | FAIL | — |
| An access handle in readwrite-unsafe mode takes a lock that is shared | PASS | FAIL | FAIL | FAIL | FAIL | — |
| An access handle in readwrite-unsafe mode is writable | PASS | PASS | PASS | FAIL | FAIL | — |
| When there's an open access handle in readwrite-unsafe mode on a file, can open another access handle in readwrite on a different file | PASS | PASS | PASS | FAIL | FAIL | — |
| When there's an open access handle in readwrite-unsafe mode on a file, cannot open another access handle in readwrite on that same file | PASS | PASS | FAIL | FAIL | FAIL | — |
| After all access handles in readwrite-unsafe mode on a file has been closed, can open another access handle in readwrite on the same file | PASS | FAIL | FAIL | FAIL | FAIL | — |
| When there's an open access handle in readwrite-unsafe mode on a file, can open another access handle in read-only on a different file | PASS | PASS | PASS | FAIL | FAIL | — |
| When there's an open access handle in readwrite-unsafe mode on a file, cannot open another access handle in read-only on that same file | PASS | PASS | FAIL | FAIL | FAIL | — |
| After all access handles in readwrite-unsafe mode on a file has been closed, can open another access handle in read-only on the same file | PASS | FAIL | FAIL | FAIL | FAIL | — |
| When there's an open access handle in readwrite-unsafe mode on a file, can open another access handle in readwrite-unsafe on a different file | PASS | PASS | PASS | FAIL | FAIL | — |