import { describe, it, expect } from "vitest";
import { Parallel } from "../../src/component/parallel.js";
import type { ParallelProps } from "../../src/component/parallel.js";
import type { UElement, UNode } from "@alkdev/ujsx";

describe("Parallel", () => {
  it("produces UElement with type parallel", () => {
    const el = Parallel({} as ParallelProps & { children?: UNode[] });
    expect(el.type).toBe("parallel");
    expect(el.children).toEqual([]);
  });

  it("preserves id prop", () => {
    const el = Parallel({ id: "group-1" } as ParallelProps & { children?: UNode[] });
    expect((el as UElement).props.id).toBe("group-1");
  });

  it("preserves maxConcurrency prop", () => {
    const el = Parallel({ maxConcurrency: 3 } as ParallelProps & { children?: UNode[] });
    expect((el as UElement).props.maxConcurrency).toBe(3);
  });

  it("includes children", () => {
    const el = Parallel({ children: ["child1", "child2"] } as ParallelProps & { children?: UNode[] });
    expect(el.children).toEqual(["child1", "child2"]);
  });

  it("omits id and maxConcurrency when not provided", () => {
    const el = Parallel({} as ParallelProps & { children?: UNode[] });
    expect((el as UElement).props.id).toBeUndefined();
    expect((el as UElement).props.maxConcurrency).toBeUndefined();
  });
});