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11 changes: 6 additions & 5 deletions packages/core/test/messages.test.ts
Original file line number Diff line number Diff line change
Expand Up @@ -3,17 +3,18 @@ import { describe, expect, it } from "vitest";
import { Messages } from "../src/messages.ts";

describe("Messages", () => {
it("is iterable and supports in-place replacement", () => {
it("is iterable and supports replacing the internal array in-place", () => {
const first: ModelMessage = { role: "user", content: "first" };
const second: ModelMessage = { role: "assistant", content: "second" };

const messages = new Messages();
messages.push(first, second);
const messages = new Messages([first]);
messages.pushAll([second]);

expect([...messages]).toEqual([first, second]);
expect(messages.slice(1)).toEqual([second]);
expect(messages.get().slice(1)).toEqual([second]);

messages.replace([second]);
const replacement = [second];
messages.get().splice(0, messages.length, ...replacement);

expect(messages.length).toBe(1);
expect([...messages]).toEqual([second]);
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