mjs.test.js

const { run } = require("../../../utils/test-utils");

describe("webpack cli", () => {
  it("should support mjs config format", async () => {
    const { exitCode, stderr, stdout } = await run(__dirname, ["-c", "webpack.config.mjs"], {
      env: { WEBPACK_CLI_FORCE_LOAD_ESM_CONFIG: true },
    });

    if (/Error: Not supported/.test(stderr)) {
      expect(exitCode).toBe(2);
      expect(stdout).toBeFalsy();
    } else {
      expect(exitCode).toBe(0);
      expect(stderr).toBeFalsy();
      expect(stdout).toBeTruthy();
    }
  });
});