| 1 | //go:build windows |
| 2 | |
| 3 | package identitylock |
| 4 | |
| 5 | import ( |
| 6 | "errors" |
| 7 | "os" |
| 8 | "os/exec" |
| 9 | "path/filepath" |
| 10 | "testing" |
| 11 | |
| 12 | "reasonix/internal/filelock" |
| 13 | ) |
| 14 | |
| 15 | func TestJunctionLocksExcludeLegacyAndCurrentWriters(t *testing.T) { |
| 16 | root := t.TempDir() |
| 17 | target, alias := filepath.Join(root, "target"), filepath.Join(root, "alias") |
| 18 | if err := os.Mkdir(target, 0o700); err != nil { |
| 19 | t.Fatal(err) |
| 20 | } |
| 21 | if out, err := exec.Command("cmd", "/c", "mklink", "/J", alias, target).CombinedOutput(); err != nil { |
| 22 | t.Fatalf("create junction: %v: %s", err, out) |
| 23 | } |
| 24 | legacy, current := filepath.Join(alias, "config.lock"), filepath.Join(target, "config.lock") |
| 25 | for _, reverse := range []bool{false, true} { |
| 26 | first, second := filelock.TryAcquire, TryAcquire |
| 27 | if reverse { |
| 28 | first, second = TryAcquire, filelock.TryAcquire |
| 29 | } |
| 30 | release, err := first(legacy) |
| 31 | if err != nil { |
| 32 | t.Fatal(err) |
| 33 | } |
| 34 | other, err := second(current) |
| 35 | release() |
| 36 | if other != nil { |
| 37 | other() |
| 38 | } |
| 39 | if !errors.Is(err, ErrHeld) { |
| 40 | t.Fatalf("reverse=%v concurrent writer admitted: %v", reverse, err) |
| 41 | } |
| 42 | other, err = second(current) |
| 43 | if err != nil { |
| 44 | t.Fatalf("release stranded lock: %v", err) |
| 45 | } |
| 46 | other() |
| 47 | } |
| 48 | } |
| 49 |