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test: add test for repl.defineCommand()
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It also tests displayPrompt by checking for '> '.

PR-URL: #3908
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
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bengl authored and Fishrock123 committed Dec 1, 2015
1 parent 15dc37f commit e5d97fd
Showing 1 changed file with 43 additions and 0 deletions.
43 changes: 43 additions & 0 deletions test/parallel/test-repl-definecommand.js
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'use strict';

require('../common');

const stream = require('stream'),
assert = require('assert'),
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\n');
assert(/\nsay1\thelp for say1\n/.test(output), 'help for say1 not present');
assert(/\nsay2\t\n/.test(output), 'help for say2 not present');
inputStream.write('.say1 node developer\n');
assert(/> hello node developer/.test(output), 'say1 outputted incorrectly');
inputStream.write('.say2 node developer\n');
assert(/> hello from say2/.test(output), 'say2 outputted incorrectly');

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