import assert from "node:assert/strict";
import { describe, it } from "node:test";

import { formatOperatorError } from "./operatorError.ts";

describe("formatOperatorError", () => {
  it("turns an HTML or JSON parser response into operator copy", () => {
    const result = formatOperatorError(
      new Error("Unexpected token '<', \"<!doctype html>\" is not valid JSON"),
      "Operations map laden mislukt.",
    );

    assert.equal(result, "Operations map laden mislukt. De backendbron gaf geen geldige API-respons.");
    assert.doesNotMatch(result, /doctype|unexpected token/i);
  });

  it("keeps a concise backend message", () => {
    assert.equal(formatOperatorError(new Error("Portainer is niet bereikbaar."), "Laden mislukt."), "Portainer is niet bereikbaar.");
  });
});