text: import cp from "child_process";
  import util from "util";
  import path from "path";
  import { fileURLToPath } from "url";
  import { createRequire } from "module";
  
  import * as babel from "../../lib";
  
  const require = createRequire(import.meta.url);
  const dirname = path.dirname(fileURLToPath(import.meta.url));
  
  // "minNodeVersion": "10.0.0" <-- For Ctrl+F when dropping node 10
  const nodeSupportsESM = parseInt(process.versions.node) >= 12;
  const isWindows = process.platform === "win32";
  
  export const supportsESM = nodeSupportsESM && !isWindows;
  
  export const isMJS = file => path.extname(file) === ".mjs";
  
  export const itESM = supportsESM ? it : it.skip;
  
  export function skipUnsupportedESM(esm, name) {
    if (esm && !nodeSupportsESM) {
      console.warn(
        `Skipping "${name}" because native ECMAScript modules are not supported.`,
      );
      return true;
    }
    // This can be removed when loadOptionsAsyncInSpawedProcess is removed.
    if (esm && isWindows) {
      console.warn(
        `Skipping "${name}" because the ESM runner cannot be spawned on Windows.`,
      );
      return true;
    }
    return false;
  }
  
  export function loadOptionsAsync({ filename, cwd = dirname }, mjs) {
    if (mjs) {
      // import() crashes with jest
      return spawn("load-options-async", filename, cwd);
    }
  
    return babel.loadOptionsAsync({ filename, cwd });
  }
  
  export function spawnTransformAsync() {
    // import() crashes with jest
    return spawn("compile-async");
  }
  
  export function spawnTransformSync() {
    // import() crashes with jest
    return spawn("compile-sync");
  }
  
  // !!!! hack is coming !!!!
  // Remove this function when https://github.com/nodejs/node/issues/35889 is resolved.
  // Jest supports dynamic import(), but Node.js segfaults when using it in our tests.
  async function spawn(runner, filename, cwd = process.cwd()) {
    const { stdout, stderr } = await util.promisify(cp.execFile)(
      require.resolve(`../fixtures/babel-${runner}.mjs`),
      // pass `cwd` as params as `process.cwd()` will normalize `cwd` on macOS
      [filename, cwd],
      { cwd, env: process.env },
    );
  
    const EXPERIMENTAL_WARNING = /\(node:\d+\) ExperimentalWarning: The ESM module loader is experimental\./;
  
    if (stderr.replace(EXPERIMENTAL_WARNING, "").trim()) {
      throw new Error(
        `error is thrown in babel-${runner}.mjs: stdout\n` +
          stdout +
          "\nstderr:\n" +
          stderr,
      );
    }
    return JSON.parse(stdout);
  }
  