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import { spawnPromisified } from '../common/index.mjs';
import { fileURL } from '../common/fixtures.mjs';
import { doesNotMatch, match, strictEqual } from 'node:assert';
import { execPath } from 'node:process';
import { describe, it } from 'node:test';
describe('ESM: warn for obsolete hooks provided', { concurrency: true }, () => {
it('should not print warnings when no experimental features are enabled or used', async () => {
const { code, signal, stderr } = await spawnPromisified(execPath, [
'--input-type=module',
'--eval',
`import ${JSON.stringify(fileURL('es-module-loaders', 'module-named-exports.mjs'))}`,
]);
doesNotMatch(
stderr,
/ExperimentalWarning/,
new Error('No experimental warning(s) should be emitted when no experimental feature is enabled')
);
strictEqual(code, 0);
strictEqual(signal, null);
});
describe('experimental warnings for enabled experimental feature', () => {
for (
const [experiment, arg] of [
[/Custom ESM Loaders/, `--experimental-loader=${fileURL('es-module-loaders', 'hooks-custom.mjs')}`],
[/Network Imports/, '--experimental-network-imports'],
]
) {
it(`should print for ${experiment.toString().replaceAll('/', '')}`, async () => {
const { code, signal, stderr } = await spawnPromisified(execPath, [
arg,
'--input-type=module',
'--eval',
`import ${JSON.stringify(fileURL('es-module-loaders', 'module-named-exports.mjs'))}`,
]);
match(stderr, /ExperimentalWarning/);
match(stderr, experiment);
strictEqual(code, 0);
strictEqual(signal, null);
});
}
});
});
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