| 1 | package session |
| 2 | |
| 3 | import ( |
| 4 | "encoding/json" |
| 5 | "errors" |
| 6 | "os" |
| 7 | "path/filepath" |
| 8 | goruntime "runtime" |
| 9 | "testing" |
| 10 | ) |
| 11 | |
| 12 | func TestFilesystemPersistenceCreatesImmutableSessionHeader(t *testing.T) { |
| 13 | root := t.TempDir() |
| 14 | persistence := NewFilesystemPersistence(root) |
| 15 | session, err := persistence.Create(CreateOptions{ |
| 16 | SessionID: "child-session", |
| 17 | CWD: filepath.Join(root, "workspace"), |
| 18 | ParentSessionID: "parent-session", |
| 19 | Origin: SessionOriginFork, |
| 20 | }) |
| 21 | if err != nil { |
| 22 | t.Fatalf("Create: %v", err) |
| 23 | } |
| 24 | if err := session.Close(t.Context()); err != nil { |
| 25 | t.Fatalf("Close: %v", err) |
| 26 | } |
| 27 | |
| 28 | headerPath := filepath.Join(root, "child-session", sessionHeaderName) |
| 29 | body, err := os.ReadFile(headerPath) |
| 30 | if err != nil { |
| 31 | t.Fatalf("ReadFile(%s): %v", headerPath, err) |
| 32 | } |
| 33 | var header SessionHeader |
| 34 | if err := json.Unmarshal(body, &header); err != nil { |
| 35 | t.Fatalf("Unmarshal: %v", err) |
| 36 | } |
| 37 | if header.SchemaVersion != SessionHeaderSchemaVersion || header.SessionID != "child-session" || |
| 38 | header.CWD != filepath.Join(root, "workspace") || header.ParentSessionID != "parent-session" || |
| 39 | header.Origin != SessionOriginFork || header.CreatedAt.IsZero() { |
| 40 | t.Fatalf("header = %#v", header) |
| 41 | } |
| 42 | // Windows has no POSIX permission bits and always reports 0666 for a |
| 43 | // regular file, so assert the owner-only mode only where the OS can carry it. |
| 44 | if info, err := os.Stat(headerPath); err != nil { |
| 45 | t.Fatalf("Stat: %v", err) |
| 46 | } else if goruntime.GOOS != "windows" && info.Mode().Perm() != 0o600 { |
| 47 | t.Fatalf("header mode = %o, want 600", info.Mode().Perm()) |
| 48 | } |
| 49 | |
| 50 | info, err := persistence.Stat(t.Context(), "child-session") |
| 51 | if err != nil { |
| 52 | t.Fatalf("Stat session: %v", err) |
| 53 | } |
| 54 | if info.CWD != header.CWD || info.ParentSessionID != header.ParentSessionID || info.Origin != header.Origin { |
| 55 | t.Fatalf("SessionInfo = %#v", info) |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | func TestFilesystemPersistenceRejectsUnknownSessionHeaderVersion(t *testing.T) { |
| 60 | root := t.TempDir() |
| 61 | persistence := NewFilesystemPersistence(root) |
| 62 | session, err := persistence.Create(CreateOptions{SessionID: "future", CWD: root, Origin: SessionOriginNew}) |
| 63 | if err != nil { |
| 64 | t.Fatalf("Create: %v", err) |
| 65 | } |
| 66 | if err := session.Close(t.Context()); err != nil { |
| 67 | t.Fatalf("Close: %v", err) |
| 68 | } |
| 69 | headerPath := filepath.Join(root, "future", sessionHeaderName) |
| 70 | if err := os.WriteFile(headerPath, []byte(`{"schemaVersion":99,"sessionId":"future"}`), 0o600); err != nil { |
| 71 | t.Fatalf("WriteFile: %v", err) |
| 72 | } |
| 73 | |
| 74 | if _, err := persistence.Stat(t.Context(), "future"); !errors.Is(err, ErrUnsupportedVersion) { |
| 75 | t.Fatalf("Stat err = %v, want ErrUnsupportedVersion", err) |
| 76 | } |
| 77 | if _, err := persistence.Open("future", ReadOnly); !errors.Is(err, ErrUnsupportedVersion) { |
| 78 | t.Fatalf("Open err = %v, want ErrUnsupportedVersion", err) |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | func TestLegacySessionWithoutHeaderRemainsReadable(t *testing.T) { |
| 83 | root := t.TempDir() |
| 84 | persistence := NewFilesystemPersistence(root) |
| 85 | session, err := persistence.Create(CreateOptions{SessionID: "legacy-compatible"}) |
| 86 | if err != nil { |
| 87 | t.Fatalf("Create: %v", err) |
| 88 | } |
| 89 | if err := session.Close(t.Context()); err != nil { |
| 90 | t.Fatalf("Close: %v", err) |
| 91 | } |
| 92 | if _, err := os.Stat(filepath.Join(root, "legacy-compatible", sessionHeaderName)); !os.IsNotExist(err) { |
| 93 | t.Fatalf("legacy header stat err = %v, want not exist", err) |
| 94 | } |
| 95 | if _, err := persistence.Open("legacy-compatible", ReadOnly); err != nil { |
| 96 | t.Fatalf("Open legacy-compatible: %v", err) |
| 97 | } |
| 98 | } |
| 99 |