import { describe, expect, it } from "bun:test";

import { FrontendActionCoordinator, FrontendActionError } from "../../src/frontendAction/coordinator.js";

describe("FrontendActionCoordinator", () => {
  it("rejects frontend actions when the registry is empty", () => {
    const coordinator = new FrontendActionCoordinator();
    coordinator.registerSink("s", () => undefined);
    expect(() => coordinator.request({ sessionId: "s", toolCallId: "c", name: "zoom_to_map", params: {} })).toThrow(FrontendActionError);
    expect(() => coordinator.request({ sessionId: "s", toolCallId: "c", name: "zoom_to_map", params: {} })).toThrow("unknown frontend action");
  });
});