function assertEqual<T>(actual: T, expected: T, message: string): void {
  if (actual !== expected) throw new Error(`${message}: expected ${String(expected)}, got ${String(actual)}`);
}

import { renderToStaticMarkup } from "react-dom/server";
import { DataGridEmptyAction, DataGridRowActions } from "../src/components/table/DataGrid";

function noop() {}

function buttonCount(markup: string): number {
  return markup.match(/<button\b/g)?.length ?? 0;
}

function nonSubmittingButtonCount(markup: string): number {
  return markup.match(/<button\b[^>]*\btype="button"/g)?.length ?? 0;
}

const rowActions = renderToStaticMarkup(
  <form>
    <DataGridRowActions onAddBelow={noop} onRemove={noop} onMoveUp={noop} onMoveDown={noop} />
  </form>
);
assertEqual(buttonCount(rowActions), 4, "row actions render the expected controls");
assertEqual(nonSubmittingButtonCount(rowActions), 4, "row actions do not submit an enclosing form");

const emptyAction = renderToStaticMarkup(
  <form>
    <DataGridEmptyAction onAdd={noop} />
  </form>
);
assertEqual(buttonCount(emptyAction), 1, "empty action renders the expected control");
assertEqual(nonSubmittingButtonCount(emptyAction), 1, "empty action does not submit an enclosing form");