import { describe, expect, it } from "vitest";

import type { Tag } from "../lib/api";
import { facetOption } from "./facetOption";

const music = { id: 7, name: "Music", category: "topic", channel_count: 238 } as Tag;

describe("a tag as a filter row", () => {
  it("counts the current filter's channels", () => {
    expect(facetOption(music, { "7": 3 }).count).toBe(3);
    expect(facetOption(music, {}).count).toBe(0);
  });

  // E31 review 2, live: with the summary failed, the rail read "Music 238" beside a search that matched
  // 3 Music channels — the whole library's count printed as the filter's.
  it("shows no count until the facets land, rather than the whole library's", () => {
    expect(facetOption(music, undefined).count).toBeUndefined();
  });
});