import { describe, it, expect, beforeEach } from "vitest";
import { DEFAULT_ITEMS_PER_PAGE, getItemsPerPage, setItemsPerPage } from "../src/state/prefs.js";

describe("state/prefs (items per page)", () => {
  beforeEach(() => {
    localStorage.clear();
  });

  it("returns default when unset", () => {
    expect(getItemsPerPage()).toBe(DEFAULT_ITEMS_PER_PAGE);
  });

  it("persists and clamps values", () => {
    expect(setItemsPerPage(50)).toBe(50);
    expect(getItemsPerPage()).toBe(50);
    expect(setItemsPerPage(0)).toBe(1);
    expect(setItemsPerPage(5000)).toBe(1000);
  });
});