| 1 | package session |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "encoding/json" |
| 6 | "path/filepath" |
| 7 | "testing" |
| 8 | |
| 9 | "reasonix/internal/provider" |
| 10 | ) |
| 11 | |
| 12 | func TestForkCreatesIndependentSessionAtCompletedTurnBoundary(t *testing.T) { |
| 13 | root := t.TempDir() |
| 14 | parentDir := filepath.Join(root, "parent") |
| 15 | parent, err := Open(parentDir, "parent") |
| 16 | if err != nil { |
| 17 | t.Fatal(err) |
| 18 | } |
| 19 | message, _ := json.Marshal(map[string]any{"message": provider.Message{ID: "m1", Role: provider.RoleUser, Content: "one"}}) |
| 20 | first, err := parent.Append(t.Context(), Batch{OperationID: "turn-1", TurnID: "t1", Events: []Event{ |
| 21 | {Kind: "turn/start"}, {Kind: "message/complete", Payload: message}, {Kind: "turn/end", Payload: json.RawMessage(`{"status":"completed"}`)}, |
| 22 | }}) |
| 23 | if err != nil { |
| 24 | t.Fatal(err) |
| 25 | } |
| 26 | secondMessage, _ := json.Marshal(map[string]any{"message": provider.Message{ID: "m2", Role: provider.RoleUser, Content: "two"}}) |
| 27 | if _, err := parent.Append(t.Context(), Batch{OperationID: "turn-2", TurnID: "t2", Events: []Event{ |
| 28 | {Kind: "turn/start"}, {Kind: "message/complete", Payload: secondMessage}, {Kind: "turn/end", Payload: json.RawMessage(`{"status":"completed"}`)}, |
| 29 | }}); err != nil { |
| 30 | t.Fatal(err) |
| 31 | } |
| 32 | childDir := filepath.Join(root, "child") |
| 33 | if _, err := parent.Fork(t.Context(), childDir, "child", first.LastSequence()); err != nil { |
| 34 | t.Fatal(err) |
| 35 | } |
| 36 | if err := parent.Close(t.Context()); err != nil { |
| 37 | t.Fatal(err) |
| 38 | } |
| 39 | |
| 40 | child, err := Open(childDir, "child") |
| 41 | if err != nil { |
| 42 | t.Fatal(err) |
| 43 | } |
| 44 | defer child.Close(context.Background()) |
| 45 | projection := child.Snapshot().Projection |
| 46 | if len(projection.Messages) != 1 || projection.Messages[0].ID != "m1" { |
| 47 | t.Fatalf("child projection = %+v", projection) |
| 48 | } |
| 49 | if _, err := child.Append(t.Context(), Batch{OperationID: "child-turn", TurnID: "ct", Events: []Event{{Kind: "turn/start"}, {Kind: "turn/end", Payload: json.RawMessage(`{"status":"completed"}`)}}}); err != nil { |
| 50 | t.Fatal(err) |
| 51 | } |
| 52 | if child.Snapshot().EventSequence == parent.Snapshot().EventSequence { |
| 53 | t.Fatal("child append mutated parent sequence") |
| 54 | } |
| 55 | if _, err := Replay(parentDir, nil); err != nil { |
| 56 | t.Fatal(err) |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | func TestForkRejectsMidTurnCut(t *testing.T) { |
| 61 | root := t.TempDir() |
| 62 | parent, err := Open(filepath.Join(root, "parent"), "parent") |
| 63 | if err != nil { |
| 64 | t.Fatal(err) |
| 65 | } |
| 66 | defer parent.Close(context.Background()) |
| 67 | if _, err := parent.Append(t.Context(), Batch{OperationID: "open", TurnID: "t1", Events: []Event{{Kind: "turn/start"}, {Kind: "step/start", Payload: json.RawMessage(`{"id":"step-1"}`)}}}); err != nil { |
| 68 | t.Fatal(err) |
| 69 | } |
| 70 | if _, err := parent.Fork(t.Context(), filepath.Join(root, "child"), "child", 1); err == nil { |
| 71 | t.Fatal("mid-turn fork succeeded") |
| 72 | } |
| 73 | } |
| 74 |