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| Current File : //proc/self/root/home/ubuntu/node-v16.18.1/test/parallel/test-util-emit-experimental-warning.js |
'use strict';
// Flags: --expose-internals
const common = require('../common');
const assert = require('assert');
const { emitExperimentalWarning } = require('internal/util');
// This test ensures that the emitExperimentalWarning in internal/util emits a
// warning when passed an unsupported feature and that it simply returns
// when passed the same feature multiple times.
process.on('warning', common.mustCall((warning) => {
assert.match(warning.message, /is an experimental feature/);
}, 2));
emitExperimentalWarning('feature1');
emitExperimentalWarning('feature1'); // should not warn
emitExperimentalWarning('feature2');
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