node/test/parallel/test-repl-definecommand.js
JungMinu fce4b981ea repl,util: insert carriage returns in output
`\n` is not enough for Linux with some custom stream
add carriage returns to ensure that the output is displayed correctly
using `\r\n` should not be a problem, even on non-Windows platforms.

Fixes: https://github.com/nodejs/node/issues/7954
PR-URL: https://github.com/nodejs/node/pull/8028
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
2016-08-13 23:03:30 +09:00

44 lines
1.1 KiB
JavaScript

'use strict';
require('../common');
const stream = require('stream');
const assert = require('assert');
const repl = require('repl');
var output = '';
const inputStream = new stream.PassThrough();
const outputStream = new stream.PassThrough();
outputStream.on('data', function(d) {
output += d;
});
const r = repl.start({
input: inputStream,
output: outputStream,
terminal: true
});
r.defineCommand('say1', {
help: 'help for say1',
action: function(thing) {
output = '';
this.write('hello ' + thing);
this.displayPrompt();
}
});
r.defineCommand('say2', function() {
output = '';
this.write('hello from say2');
this.displayPrompt();
});
inputStream.write('.help\r\n');
assert(/\r\nsay1\thelp for say1\r\n/.test(output), 'help for say1 not present');
assert(/\r\nsay2\t\r\n/.test(output), 'help for say2 not present');
inputStream.write('.say1 node developer\r\n');
assert(/> hello node developer/.test(output), 'say1 outputted incorrectly');
inputStream.write('.say2 node developer\r\n');
assert(/> hello from say2/.test(output), 'say2 outputted incorrectly');