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test,console: add testing for monkeypatching of console stdio #26561

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test,console: add testing for monkeypatching of console stdio #26561

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20 changes: 20 additions & 0 deletions test/parallel/test-console-stdio-setters.js
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'use strict';

// Test that monkeypatching console._stdout and console._stderr works.
const common = require('../common');

const { Writable } = require('stream');
const { Console } = require('console');

const streamToNowhere = new Writable({ write: common.mustCall() });
const anotherStreamToNowhere = new Writable({ write: common.mustCall() });
const myConsole = new Console(process.stdout);

// Overriding the _stdout and _stderr properties this way is what we are
// testing. Don't change this to be done via arguments passed to the constructor
// above.
myConsole._stdout = streamToNowhere;
myConsole._stderr = anotherStreamToNowhere;

myConsole.log('fhqwhgads');
myConsole.error('fhqwhgads');