| 1 | package session |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "encoding/json" |
| 6 | "path/filepath" |
| 7 | "strings" |
| 8 | "testing" |
| 9 | "time" |
| 10 | |
| 11 | "reasonix/internal/provider" |
| 12 | ) |
| 13 | |
| 14 | func windowReady(t *testing.T, query *Query, ref SessionRef, req HistoryWindowRequest) HistoryWindowPage { |
| 15 | t.Helper() |
| 16 | page, err := waitHistoryWindow(t, query, ref, req) |
| 17 | if err != nil { |
| 18 | t.Fatal(err) |
| 19 | } |
| 20 | return page |
| 21 | } |
| 22 | |
| 23 | func waitHistoryWindow(t *testing.T, query *Query, ref SessionRef, req HistoryWindowRequest) (HistoryWindowPage, error) { |
| 24 | t.Helper() |
| 25 | deadline := time.Now().Add(5 * time.Second) |
| 26 | for { |
| 27 | page, err := query.ReadHistoryWindow(t.Context(), ref, req) |
| 28 | if err != nil || page.Status != "preparing" { |
| 29 | return page, err |
| 30 | } |
| 31 | if time.Now().After(deadline) { |
| 32 | t.Fatalf("window stayed preparing: %+v", page) |
| 33 | } |
| 34 | time.Sleep(time.Millisecond) |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | func appendWindowMessages(t *testing.T, runtime *Runtime, ids ...string) { |
| 39 | t.Helper() |
| 40 | for _, id := range ids { |
| 41 | payload, err := json.Marshal(map[string]any{"message": provider.Message{ID: id, Role: provider.RoleUser, Content: "body-" + id}}) |
| 42 | if err != nil { |
| 43 | t.Fatal(err) |
| 44 | } |
| 45 | if _, err := runtime.Session().Append(t.Context(), Batch{OperationID: "message-" + id, Events: []Event{{Kind: "message/complete", Payload: payload}}}); err != nil { |
| 46 | t.Fatal(err) |
| 47 | } |
| 48 | } |
| 49 | if _, err := runtime.Session().Flush(t.Context()); err != nil { |
| 50 | t.Fatal(err) |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | func windowIDs(t *testing.T, page HistoryWindowPage) []string { |
| 55 | t.Helper() |
| 56 | ids := make([]string, 0, len(page.Messages)) |
| 57 | for _, m := range page.Messages { |
| 58 | ids = append(ids, m.MessageID) |
| 59 | } |
| 60 | return ids |
| 61 | } |
| 62 | |
| 63 | func idsEqual(a, b []string) bool { |
| 64 | if len(a) != len(b) { |
| 65 | return false |
| 66 | } |
| 67 | for i := range a { |
| 68 | if a[i] != b[i] { |
| 69 | return false |
| 70 | } |
| 71 | } |
| 72 | return true |
| 73 | } |
| 74 | |
| 75 | func TestHistoryWindowNewestAndOlderPaging(t *testing.T) { |
| 76 | root := filepath.Join(t.TempDir(), "sessions-v4") |
| 77 | service, err := NewService("local", NewFilesystemPersistence(root)) |
| 78 | if err != nil { |
| 79 | t.Fatal(err) |
| 80 | } |
| 81 | t.Cleanup(func() { _ = service.CloseAll(context.Background()) }) |
| 82 | runtime, err := service.Create(t.Context(), CreateOptions{SessionID: "windowed"}) |
| 83 | if err != nil { |
| 84 | t.Fatal(err) |
| 85 | } |
| 86 | t.Cleanup(func() { _ = service.Close(context.Background(), runtime.Ref()) }) |
| 87 | appendWindowMessages(t, runtime, "m1", "m2", "m3", "m4", "m5") |
| 88 | ref := runtime.Ref() |
| 89 | query := service.Query() |
| 90 | |
| 91 | newest := windowReady(t, query, ref, HistoryWindowRequest{Anchor: "newest", Limit: 2}) |
| 92 | if newest.Status != "ready" || !idsEqual(windowIDs(t, newest), []string{"m4", "m5"}) { |
| 93 | t.Fatalf("newest page = %v", windowIDs(t, newest)) |
| 94 | } |
| 95 | if !newest.HasOlder || newest.OlderCursor == "" || newest.HasNewer { |
| 96 | t.Fatalf("newest page cursors = %+v", newest) |
| 97 | } |
| 98 | older := windowReady(t, query, ref, HistoryWindowRequest{Anchor: "cursor", Cursor: newest.OlderCursor, Limit: 2}) |
| 99 | if !idsEqual(windowIDs(t, older), []string{"m2", "m3"}) { |
| 100 | t.Fatalf("older page = %v", windowIDs(t, older)) |
| 101 | } |
| 102 | if !older.HasNewer || older.NewerCursor == "" { |
| 103 | t.Fatalf("older page must expose a newer cursor: %+v", older) |
| 104 | } |
| 105 | newer := windowReady(t, query, ref, HistoryWindowRequest{Anchor: "cursor", Cursor: older.NewerCursor, Limit: 5}) |
| 106 | if !idsEqual(windowIDs(t, newer), []string{"m4", "m5"}) { |
| 107 | t.Fatalf("newer continuation = %v", windowIDs(t, newer)) |
| 108 | } |
| 109 | oldest := windowReady(t, query, ref, HistoryWindowRequest{Anchor: "cursor", Cursor: older.OlderCursor, Limit: 5}) |
| 110 | if !idsEqual(windowIDs(t, oldest), []string{"m1"}) || oldest.HasOlder { |
| 111 | t.Fatalf("oldest page = %v hasOlder=%v", windowIDs(t, oldest), oldest.HasOlder) |
| 112 | } |
| 113 | } |
| 114 | |
| 115 | func TestHistoryWindowMessageAndTurnAnchors(t *testing.T) { |
| 116 | root := filepath.Join(t.TempDir(), "sessions-v4") |
| 117 | service, err := NewService("local", NewFilesystemPersistence(root)) |
| 118 | if err != nil { |
| 119 | t.Fatal(err) |
| 120 | } |
| 121 | t.Cleanup(func() { _ = service.CloseAll(context.Background()) }) |
| 122 | runtime, err := service.Create(t.Context(), CreateOptions{SessionID: "anchored"}) |
| 123 | if err != nil { |
| 124 | t.Fatal(err) |
| 125 | } |
| 126 | t.Cleanup(func() { _ = service.Close(context.Background(), runtime.Ref()) }) |
| 127 | appendWindowMessages(t, runtime, "a1", "a2", "a3", "a4") |
| 128 | ref := runtime.Ref() |
| 129 | query := service.Query() |
| 130 | |
| 131 | // A search-hit-style jump lands a window around the target without |
| 132 | // walking from the newest page. |
| 133 | byMessage := windowReady(t, query, ref, HistoryWindowRequest{Anchor: "message", MessageID: "a2", Limit: 2}) |
| 134 | if !idsEqual(windowIDs(t, byMessage), []string{"a1", "a2"}) { |
| 135 | t.Fatalf("message anchor page = %v", windowIDs(t, byMessage)) |
| 136 | } |
| 137 | if !byMessage.HasNewer || byMessage.NewerCursor == "" { |
| 138 | t.Fatalf("message anchor must continue newer: %+v", byMessage) |
| 139 | } |
| 140 | afterTarget := windowReady(t, query, ref, HistoryWindowRequest{Anchor: "cursor", Cursor: byMessage.NewerCursor, Limit: 2}) |
| 141 | if !idsEqual(windowIDs(t, afterTarget), []string{"a3", "a4"}) { |
| 142 | t.Fatalf("newer continuation = %v", windowIDs(t, afterTarget)) |
| 143 | } |
| 144 | |
| 145 | byTurn := windowReady(t, query, ref, HistoryWindowRequest{Anchor: "turn", Turn: 4, Limit: 1}) |
| 146 | if len(byTurn.Messages) != 1 || byTurn.Messages[0].MessageID != "a4" { |
| 147 | t.Fatalf("turn anchor page = %+v", byTurn) |
| 148 | } |
| 149 | missing := windowReady(t, query, ref, HistoryWindowRequest{Anchor: "message", MessageID: "absent", Limit: 2}) |
| 150 | if missing.Status != "not_found" { |
| 151 | t.Fatalf("missing anchor status = %s", missing.Status) |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | func mustEncodeWindowCursor(t *testing.T, c historyWindowCursor) string { |
| 156 | t.Helper() |
| 157 | cursor, err := encodeHistoryWindowCursor(c) |
| 158 | if err != nil { |
| 159 | t.Fatal(err) |
| 160 | } |
| 161 | return cursor |
| 162 | } |
| 163 | |
| 164 | func TestHistoryWindowRejectsForeignCursor(t *testing.T) { |
| 165 | root := filepath.Join(t.TempDir(), "sessions-v4") |
| 166 | service, err := NewService("local", NewFilesystemPersistence(root)) |
| 167 | if err != nil { |
| 168 | t.Fatal(err) |
| 169 | } |
| 170 | t.Cleanup(func() { _ = service.CloseAll(context.Background()) }) |
| 171 | runtime, err := service.Create(t.Context(), CreateOptions{SessionID: "fenced"}) |
| 172 | if err != nil { |
| 173 | t.Fatal(err) |
| 174 | } |
| 175 | t.Cleanup(func() { _ = service.Close(context.Background(), runtime.Ref()) }) |
| 176 | appendWindowMessages(t, runtime, "f1", "f2") |
| 177 | ref := runtime.Ref() |
| 178 | page := windowReady(t, service.Query(), ref, HistoryWindowRequest{Anchor: "newest", Limit: 1}) |
| 179 | if page.OlderCursor == "" { |
| 180 | t.Fatal("expected an older cursor") |
| 181 | } |
| 182 | parsed, err := decodeHistoryWindowCursor(page.OlderCursor) |
| 183 | if err != nil { |
| 184 | t.Fatal(err) |
| 185 | } |
| 186 | // A cursor whose storage generation no longer matches — as after a |
| 187 | // storage replacement or projection rebuild — answers stale_cursor. |
| 188 | foreign := parsed |
| 189 | foreign.Generation = "g-none" |
| 190 | stale, err := service.Query().ReadHistoryWindow(t.Context(), ref, HistoryWindowRequest{Anchor: "cursor", Cursor: mustEncodeWindowCursor(t, foreign), Limit: 1}) |
| 191 | if err != nil { |
| 192 | t.Fatal(err) |
| 193 | } |
| 194 | if stale.Status != "stale_cursor" { |
| 195 | t.Fatalf("foreign generation cursor = %s, want stale_cursor", stale.Status) |
| 196 | } |
| 197 | foreign = parsed |
| 198 | foreign.SnapshotSequence += 1 << 40 |
| 199 | overrun, err := service.Query().ReadHistoryWindow(t.Context(), ref, HistoryWindowRequest{Anchor: "cursor", Cursor: mustEncodeWindowCursor(t, foreign), Limit: 1}) |
| 200 | if err != nil { |
| 201 | t.Fatal(err) |
| 202 | } |
| 203 | if overrun.Status != "stale_cursor" { |
| 204 | t.Fatalf("future snapshot cursor = %s, want stale_cursor", overrun.Status) |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | func TestReadMessageFieldReturnsBoundedAlignedFragments(t *testing.T) { |
| 209 | root := filepath.Join(t.TempDir(), "sessions-v4") |
| 210 | service, err := NewService("local", NewFilesystemPersistence(root)) |
| 211 | if err != nil { |
| 212 | t.Fatal(err) |
| 213 | } |
| 214 | t.Cleanup(func() { _ = service.CloseAll(context.Background()) }) |
| 215 | runtime, err := service.Create(t.Context(), CreateOptions{SessionID: "fields"}) |
| 216 | if err != nil { |
| 217 | t.Fatal(err) |
| 218 | } |
| 219 | t.Cleanup(func() { _ = service.Close(context.Background(), runtime.Ref()) }) |
| 220 | content := strings.Repeat("汉", 30000) + `quote " and \backslash` + strings.Repeat("字", 3000) |
| 221 | payload, err := json.Marshal(map[string]any{"message": provider.Message{ID: "big", Role: provider.RoleUser, Content: content}}) |
| 222 | if err != nil { |
| 223 | t.Fatal(err) |
| 224 | } |
| 225 | if _, err := runtime.Session().Append(t.Context(), Batch{OperationID: "message-big", Events: []Event{{Kind: "message/complete", Payload: payload}}}); err != nil { |
| 226 | t.Fatal(err) |
| 227 | } |
| 228 | if _, err := runtime.Session().Flush(t.Context()); err != nil { |
| 229 | t.Fatal(err) |
| 230 | } |
| 231 | ref := runtime.Ref() |
| 232 | query := service.Query() |
| 233 | // Display the page once so the referenced content gains its range grant. |
| 234 | page := historyPageReady(t, query, ref, "", 10) |
| 235 | if len(page.Messages) != 1 || page.Messages[0].ContentRef == nil { |
| 236 | t.Fatalf("expected a referenced large message, got %+v", page) |
| 237 | } |
| 238 | |
| 239 | first, err := query.ReadMessageField(t.Context(), ref, "big", 0, "content", 0, 64) |
| 240 | if err != nil { |
| 241 | t.Fatal(err) |
| 242 | } |
| 243 | if first.Status != "ready" || first.TotalBytes == 0 || len(first.Data) == 0 || first.NextOffset == 0 { |
| 244 | t.Fatalf("first fragment = status:%s total:%d data:%d next:%d", first.Status, first.TotalBytes, len(first.Data), first.NextOffset) |
| 245 | } |
| 246 | var assembled []byte |
| 247 | assembled = append(assembled, first.Data...) |
| 248 | offset := first.NextOffset |
| 249 | for offset != 0 { |
| 250 | frag, err := query.ReadMessageField(t.Context(), ref, "big", 0, "content", offset, 256<<10) |
| 251 | if err != nil { |
| 252 | t.Fatal(err) |
| 253 | } |
| 254 | assembled = append(assembled, frag.Data...) |
| 255 | offset = frag.NextOffset |
| 256 | } |
| 257 | var decoded string |
| 258 | if err := json.Unmarshal(assembled, &decoded); err != nil { |
| 259 | t.Fatalf("reassembled field is not the original JSON string: %v", err) |
| 260 | } |
| 261 | if decoded != content { |
| 262 | t.Fatal("reassembled content mismatch") |
| 263 | } |
| 264 | whole, err := query.ReadMessageField(t.Context(), ref, "big", 0, "canonicalMessage", 0, 0) |
| 265 | if err != nil { |
| 266 | t.Fatal(err) |
| 267 | } |
| 268 | var message provider.Message |
| 269 | if err := json.Unmarshal(whole.Data, &message); err != nil { |
| 270 | t.Fatalf("canonicalMessage fragment did not parse: %v", err) |
| 271 | } |
| 272 | absent, err := query.ReadMessageField(t.Context(), ref, "absent", 0, "content", 0, 64) |
| 273 | if err != nil { |
| 274 | t.Fatal(err) |
| 275 | } |
| 276 | if absent.Status != "not_found" { |
| 277 | t.Fatalf("unknown message status = %s, want not_found", absent.Status) |
| 278 | } |
| 279 | if _, err := query.ReadMessageField(t.Context(), ref, "big", 0, "", 0, 64); err == nil { |
| 280 | t.Fatal("field read without a field name succeeded") |
| 281 | } |
| 282 | if _, err := query.ReadMessageField(t.Context(), ref, "big", 0, "content", -1, 64); err == nil { |
| 283 | t.Fatal("negative offset accepted") |
| 284 | } |
| 285 | } |
| 286 |