'use strict'; const common = require('../common'); const assert = require('assert'); const util = require('util'); const { Writable } = require('stream'); const { Console } = require('console'); function check(isTTY, colorMode, expectedColorMode) { const items = [ 1, { a: 2 }, [ 'foo' ], { '\\a': '\\bar' } ]; let i = 0; const stream = new Writable({ write: common.mustCall((chunk, enc, cb) => { assert.strictEqual(chunk.trim(), util.inspect(items[i++], { colors: expectedColorMode })); cb(); }, items.length), decodeStrings: false }); stream.isTTY = isTTY; // Set ignoreErrors to `false` here so that we see assertion failures // from the `write()` call happen. const testConsole = new Console({ stdout: stream, ignoreErrors: false, colorMode }); for (const item of items) { testConsole.log(item); } } check(true, 'auto', true); check(false, 'auto', false); check(true, true, true); check(false, true, true); check(true, false, false); check(false, false, false); // check invalid colorMode type { const stream = new Writable({ write: common.mustNotCall() }); [0, 'true', null, {}, [], () => {}].forEach((colorMode) => { const received = util.inspect(colorMode); assert.throws( () => { new Console({ stdout: stream, ignoreErrors: false, colorMode: colorMode }); }, { message: `The argument 'colorMode' is invalid. Received ${received}`, code: 'ERR_INVALID_ARG_VALUE' } ); }); }