Files
ThothII/backend/test/session-bridge.test.ts
T
marcopanandClaude Opus 4.8 091a055bf0 fix(backend): bridge maps real Pi message_update->text_delta for FE streaming
Live end-to-end against real pi --mode rpc revealed Pi streams assistant text as
top-level message_update events whose nested assistantMessageEvent carries the
incremental delta — not the top-level text_delta the fake-pi-rpc emits. The bridge
now maps message_update(assistantMessageEvent.text_delta).delta -> FE text_delta,
so the chat shows the model's output during a real session.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-28 15:03:13 +02:00

56 lines
2.3 KiB
TypeScript

import { test, expect, vi } from "vitest";
import { SessionBridge } from "../src/bridge/session-bridge.js";
function fakeRpc() {
const sent: any[] = [];
let evcb: any;
return {
rpc: {
send: (c: any) => sent.push(c),
on: (_: any, cb: any) => { evcb = cb; },
request: vi.fn(),
} as any,
sent,
fire: (m: any) => evcb(m),
};
}
test("real Pi message_update (assistantMessageEvent text_delta) becomes a text_delta to the FE", () => {
const { rpc, fire } = fakeRpc();
const b = new SessionBridge(rpc);
const seen: any[] = [];
b.onClientEvent((e) => seen.push(e));
// Shape emitted by real `pi --mode rpc`: text streams inside message_update.assistantMessageEvent.delta
fire({ type: "message_update", assistantMessageEvent: { type: "text_delta", contentIndex: 0, delta: "Avvio" } });
expect(seen[0]).toEqual({ type: "text_delta", text: "Avvio" });
// Non-text message_update events (e.g. text_start) are ignored.
fire({ type: "message_update", assistantMessageEvent: { type: "text_start", contentIndex: 0 } });
expect(seen).toHaveLength(1);
});
test("extension_ui_request nativo (method:input, title=json) diventa ui_request ed è il pendente", () => {
const { rpc, fire } = fakeRpc();
const b = new SessionBridge(rpc);
const seen: any[] = [];
b.onClientEvent((e) => seen.push(e));
const descriptor = { id: "u1", widget: "select" };
fire({ type: "extension_ui_request", id: "u1", method: "input", title: JSON.stringify(descriptor) });
expect(seen[0]).toEqual({ type: "ui_request", ui_request: descriptor });
expect(b.pendingWidget()).toEqual(descriptor);
});
test("respond invia extension_ui_response con payload in value e azzera il pendente", () => {
const { rpc, sent, fire } = fakeRpc();
const b = new SessionBridge(rpc);
fire({ type: "extension_ui_request", id: "u1", method: "input", title: JSON.stringify({ id: "u1", widget: "select" }) });
b.respond({ id: "u1", choices: ["a"] });
expect(sent.at(-1)).toEqual({ type: "extension_ui_response", id: "u1", value: JSON.stringify({ id: "u1", choices: ["a"] }) });
expect(b.pendingWidget()).toBeNull();
});
test("steer invia un comando steer", () => {
const { rpc, sent } = fakeRpc();
new SessionBridge(rpc).steer("considera solo il 2024");
expect(sent.at(-1)).toEqual({ type: "steer", message: "considera solo il 2024" });
});