| 1 | package fileops |
| 2 | |
| 3 | import ( |
| 4 | "os" |
| 5 | "path/filepath" |
| 6 | "runtime" |
| 7 | "testing" |
| 8 | ) |
| 9 | |
| 10 | func TestStoreTransitions(t *testing.T) { |
| 11 | s := NewStore() |
| 12 | target := OverlayTarget("a.txt") |
| 13 | if got := s.Get(target); got.Kind != Unseen { |
| 14 | t.Fatalf("initial kind = %v", got.Kind) |
| 15 | } |
| 16 | s.ObserveAbsent(target) |
| 17 | if got := s.Get(target); got.Kind != Absent { |
| 18 | t.Fatalf("absent kind = %v", got.Kind) |
| 19 | } |
| 20 | s.ObservePresent(target, "v1") |
| 21 | if got := s.Get(target); got.Kind != Present || got.Version != "v1" { |
| 22 | t.Fatalf("present = %#v", got) |
| 23 | } |
| 24 | s.Forget(target) |
| 25 | if got := s.Get(target); got.Kind != Unseen { |
| 26 | t.Fatalf("forgotten kind = %v", got.Kind) |
| 27 | } |
| 28 | } |
| 29 | |
| 30 | func TestDiskVersionDetectsMetadataChanges(t *testing.T) { |
| 31 | if runtime.GOOS == "windows" { |
| 32 | t.Skip("Windows permission freshness is covered with a native ACL change") |
| 33 | } |
| 34 | path := filepath.Join(t.TempDir(), "file.txt") |
| 35 | if err := os.WriteFile(path, []byte("one"), 0o644); err != nil { |
| 36 | t.Fatal(err) |
| 37 | } |
| 38 | before, err := os.Stat(path) |
| 39 | if err != nil { |
| 40 | t.Fatal(err) |
| 41 | } |
| 42 | if err := os.Chmod(path, 0o600); err != nil { |
| 43 | t.Fatal(err) |
| 44 | } |
| 45 | after, err := os.Stat(path) |
| 46 | if err != nil { |
| 47 | t.Fatal(err) |
| 48 | } |
| 49 | if DiskVersion(before) == DiskVersion(after) { |
| 50 | t.Fatal("permission change did not change version") |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | func TestHardLinksShareTarget(t *testing.T) { |
| 55 | dir := t.TempDir() |
| 56 | a := filepath.Join(dir, "a") |
| 57 | b := filepath.Join(dir, "b") |
| 58 | if err := os.WriteFile(a, []byte("x"), 0o644); err != nil { |
| 59 | t.Fatal(err) |
| 60 | } |
| 61 | if err := os.Link(a, b); err != nil { |
| 62 | t.Skipf("hard links unavailable: %v", err) |
| 63 | } |
| 64 | ai, _ := os.Stat(a) |
| 65 | bi, _ := os.Stat(b) |
| 66 | if DiskTarget(a, ai).Key != DiskTarget(b, bi).Key { |
| 67 | t.Fatalf("targets differ: %#v %#v", DiskTarget(a, ai), DiskTarget(b, bi)) |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | func TestOverlayProviderIdentitiesDoNotShareObservations(t *testing.T) { |
| 72 | store := NewStore() |
| 73 | first := OverlayTargetWithIdentity("buffer.txt", "connection-a") |
| 74 | second := OverlayTargetWithIdentity("buffer.txt", "connection-b") |
| 75 | store.ObservePresent(first, OverlayVersion("same content")) |
| 76 | if got := store.Get(second); got.Kind != Unseen { |
| 77 | t.Fatalf("observation crossed overlay providers: %+v", got) |
| 78 | } |
| 79 | } |
| 80 |