nodejs/test/parallel/test-warn-multipleResolves.mjs

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import { expectWarning, mustCall } from '../common/index.mjs';
expectWarning(
'DeprecationWarning',
'The multipleResolves event has been deprecated.',
'DEPXXXX',
);
process.on('multipleResolves', mustCall());
new Promise((resolve) => {
resolve();
resolve();
});