test: add failing test for readline with carriage return
PR-URL: https://github.com/nodejs/node/pull/46075 Refs: https://github.com/nodejs/node/issues/45992 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
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test/known_issues/test-readline-big-file-carriage-return.js
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test/known_issues/test-readline-big-file-carriage-return.js
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'use strict';
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// Context: https://github.com/nodejs/node/issues/45992
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require('../common');
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const assert = require('assert');
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const fs = require('fs');
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const readline = require('readline');
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const tmpdir = require('../common/tmpdir');
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tmpdir.refresh();
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fs.mkdtempSync(`${tmpdir.path}/`);
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const path = `${tmpdir.path}/foo`;
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const writeStream = fs.createWriteStream(path);
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function write(iteration, callback) {
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for (; iteration < 16384; iteration += 1) {
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if (!writeStream.write('foo\r\n')) {
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writeStream.once('drain', () => write(iteration + 1, callback));
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return;
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}
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}
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writeStream.end();
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callback();
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}
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write(0, () => {
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const input = fs.createReadStream(path);
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const rl = readline.createInterface({ input, crlfDelay: Infinity });
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let carriageReturns = 0;
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rl.on('line', (x) => {
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if (x.includes('\r')) carriageReturns += 1;
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});
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rl.on('close', () => {
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assert.strictEqual(carriageReturns, 0);
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});
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});
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