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nodejs/test/es-module/test-cjs-esm-warn.js
Joyee Cheung 06206af181
module: unflag --experimental-require-module
This unflags --experimental-require-module so require(esm) can be
used without the flag. For now, when require() actually encounters
an ESM, it will still emit an experimental warning. To opt out
of the feature, --no-experimental-require-module can be used.

There are some tests specifically testing ERR_REQUIRE_ESM. Some
of them are repurposed to test --no-experimental-require-module.
Some of them are modified to just expect loading require(esm) to
work, when it's appropriate.

PR-URL: https://github.com/nodejs/node/pull/55085
Refs: https://github.com/nodejs/node/issues/52697
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: LiviaMedeiros <livia@cirno.name>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
2024-09-26 14:21:37 +00:00

76 lines
2.6 KiB
JavaScript

// Previously, this tested that require(esm) throws ERR_REQUIRE_ESM, which is no longer applicable
// since require(esm) is now supported. The test has been repurposed to ensure that the old behavior
// is preserved when the --no-experimental-require-module flag is used.
'use strict';
const { spawnPromisified } = require('../common');
const fixtures = require('../common/fixtures.js');
const assert = require('node:assert');
const path = require('node:path');
const { execPath } = require('node:process');
const { describe, it } = require('node:test');
const requiringCjsAsEsm = path.resolve(fixtures.path('/es-modules/cjs-esm.js'));
const requiringEsm = path.resolve(fixtures.path('/es-modules/cjs-esm-esm.js'));
const pjson = path.toNamespacedPath(
fixtures.path('/es-modules/package-type-module/package.json')
);
describe('CJS ↔︎ ESM interop warnings', { concurrency: !process.env.TEST_PARALLEL }, () => {
it(async () => {
const required = path.resolve(
fixtures.path('/es-modules/package-type-module/cjs.js')
);
const basename = 'cjs.js';
const { code, signal, stderr } = await spawnPromisified(execPath, [
'--no-experimental-require-module', requiringCjsAsEsm,
]);
assert.ok(
stderr.replaceAll('\r', '').includes(
`Error [ERR_REQUIRE_ESM]: require() of ES Module ${required} from ${requiringCjsAsEsm} not supported.\n`
)
);
assert.ok(
stderr.replaceAll('\r', '').includes(
`Instead either rename ${basename} to end in .cjs, change the requiring ` +
'code to use dynamic import() which is available in all CommonJS ' +
`modules, or change "type": "module" to "type": "commonjs" in ${pjson} to ` +
'treat all .js files as CommonJS (using .mjs for all ES modules ' +
'instead).\n'
)
);
assert.strictEqual(code, 1);
assert.strictEqual(signal, null);
});
it(async () => {
const required = path.resolve(
fixtures.path('/es-modules/package-type-module/esm.js')
);
const basename = 'esm.js';
const { code, signal, stderr } = await spawnPromisified(execPath, [
'--no-experimental-require-module', requiringEsm,
]);
assert.ok(
stderr.replace(/\r/g, '').includes(
`Error [ERR_REQUIRE_ESM]: require() of ES Module ${required} from ${requiringEsm} not supported.\n`
)
);
assert.ok(
stderr.replace(/\r/g, '').includes(
`Instead change the require of ${basename} in ${requiringEsm} to` +
' a dynamic import() which is available in all CommonJS modules.\n'
)
);
assert.strictEqual(code, 1);
assert.strictEqual(signal, null);
});
});