minimal cli func test with shelljs

funcsimple.js

#!/usr/bin/env node

var assert = require('assert'),
    shell = require('shelljs'),
    path = require('path'),

    BASEDIR = path.resolve(__dirname, '../') + '/',
    NEWSAPP = BASEDIR + 'examples/newsboxes/';


function test_version(exit, out) {
    var expected_version = require(BASEDIR + 'package.json').version,
        has_version = out.indexOf('Version of mojito is ' + expected_version);
    assert.equal(0, exit);
    assert.equal(true, has_version);
}

function test_version_app(exit, out) {
    var expected = require(NEWSAPP + 'package.json').version,
        actual = 'Version of application is 0.0.2';
    assert.equal(0, exit);
    assert.equal('Version of application is ' + expected, actual);
}

function test_version_mojit_fail(exit, out) {
    var expected = "✖ Error reading mojit version: ENOENT, no such file or directory '/Users/isao/Repos/mojito/myfork/examples/newsboxes/mojits/Read/package.json'\n✔ mojito done.";
    assert.equal(0, exit);
    assert.equal(expected, out.trim());
}

function test_info(exit, out) {
    var expected = "Name:\t\tmojito_newsboxes\nDescription:\ta developer oriented version of Ric Allinson's Slideboard\nVersion:\t0.0.2\n\n✔ mojito done.";
    assert.equal(0, exit);
    assert.equal(expected, out.trim());
}

shell.exec('mojito version', test_version);

shell.cd(NEWSAPP);
shell.exec('mojito version app', test_version_app);
shell.exec('mojito version app ' + NEWSAPP, test_version_app);
shell.exec('mojito version mojit Read', test_version_mojit_fail);
shell.exec('mojito info', test_info);