clanker-agent/packages/tui/test/select-list.test.ts

import assert from "node:assert";
import { describe, it } from "node:test";
import { SelectList } from "../src/components/select-list.js";

const testTheme = {
  selectedPrefix: (text: string) => text,
  selectedText: (text: string) => text,
  description: (text: string) => text,
  scrollInfo: (text: string) => text,
  noMatch: (text: string) => text,
};

describe("SelectList", () => {
  it("normalizes multiline descriptions to single line", () => {
    const items = [
      {
        value: "test",
        label: "test",
        description: "Line one\nLine two\nLine three",
      },
    ];

    const list = new SelectList(items, 5, testTheme);
    const rendered = list.render(100);

    assert.ok(rendered.length > 0);
    assert.ok(!rendered[0].includes("\n"));
    assert.ok(rendered[0].includes("Line one Line two Line three"));
  });
});