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Mini Shell
Mini Shell
'use strict';
var expect = require('expect.js');
var promptly = require('../index');
var async = require('async');
// Mock stdout
var stdout = '';
var oldWrite = process.stdout.write;
process.stdout.write = function (data) {
stdout += data;
return oldWrite.apply(process.stdout, arguments);
};
// Function to send a line to stdin
function sendLine(line) {
setImmediate(function () {
process.stdin.emit('data', line + '\n');
});
}
beforeEach(function () {
stdout = '';
});
describe('prompt()', function () {
it('should prompt the user', function (next) {
promptly.prompt('something: ', function (err, value) {
expect(err).to.be(null);
expect(value).to.be('yeaa');
expect(stdout).to.contain('something: ');
next();
});
sendLine('yeaa');
});
it('should keep asking if no value is passed and no default was defined', function (next) {
promptly.prompt('something: ', function (err, value) {
expect(err).to.be(null);
expect(value).to.be('yeaa');
expect(stdout).to.contain('something: ');
expect(stdout.indexOf('something')).to.not.be(stdout.lastIndexOf('something'));
next();
});
sendLine('');
sendLine('yeaa');
});
it('should assume default value if nothing is passed', function (next) {
promptly.prompt('something: ', { 'default': 'myValue' }, function (err, value) {
expect(err).to.be(null);
expect(value).to.be('myValue');
expect(stdout).to.contain('something: ');
next();
});
sendLine('');
});
it('should trim the user input if trim is enabled', function (next) {
promptly.prompt('something: ', { trim: true }, function (err, value) {
expect(err).to.be(null);
expect(value).to.be('yeaa');
expect(stdout).to.contain('something: ');
next();
});
sendLine(' yeaa ');
});
it('should call validator after trimming', function (next) {
function validator(value) {
if (value !== 'yeaa') {
throw new Error('bla');
}
return value;
}
promptly.prompt('something: ', { validator: validator, retry: false }, function (err, value) {
expect(err).to.be(null);
expect(value).to.be('yeaa');
expect(stdout).to.contain('something: ');
next();
});
sendLine(' yeaa ');
});
it('should assume values from the validator', function (next) {
function validator() { return 'bla'; }
promptly.prompt('something: ', { validator: validator }, function (err, value) {
expect(err).to.be(null);
expect(value).to.be('bla');
expect(stdout).to.contain('something: ');
next();
});
sendLine(' yeaa ');
});
it('should automatically retry if a validator fails by default', function (next) {
function validator(value) {
if (value !== 'yeaa') {
throw new Error('bla');
}
return value;
}
promptly.prompt('something: ', { validator: validator, retry: true }, function (err, value) {
expect(stdout).to.contain('something: ');
expect(stdout.indexOf('something')).to.not.be(stdout.lastIndexOf('something'));
expect(stdout).to.contain('bla');
expect(value).to.equal('yeaa');
next();
});
sendLine('wtf');
sendLine('yeaa');
});
it('should give error if the validator fails and retry is false', function (next) {
function validator() { throw new Error('bla'); }
promptly.prompt('something: ', { validator: validator, retry: false }, function (err) {
expect(err).to.be.an(Error);
expect(err.message).to.be('bla');
expect(stdout).to.contain('something: ');
next();
});
sendLine(' yeaa ');
});
it('should give retry ability on error', function (next) {
var times = 0;
function validator(value) {
if (value !== 'yeaa') {
throw new Error('bla');
}
return value;
}
promptly.prompt('something: ', { validator: validator, retry: false }, function (err, value) {
times++;
if (times === 1) {
expect(err).to.be.an(Error);
err.retry();
return sendLine('yeaa');
}
expect(value).to.equal('yeaa');
expect(stdout).to.contain('something: ');
expect(stdout.indexOf('something')).to.not.be(stdout.lastIndexOf('something'));
next();
});
sendLine('wtf');
});
it('should write input to stdout by default', function (next) {
promptly.prompt('something: ', function (err, value) {
expect(err).to.be(null);
expect(value).to.be('yeaa');
expect(stdout).to.contain('something: ');
expect(stdout).to.contain(value);
next();
});
sendLine('yeaa');
});
it('should write input to stdout if silent is false', function (next) {
promptly.prompt('something: ', { silent: true }, function (err, value) {
expect(err).to.be(null);
expect(value).to.be('yeaa');
expect(stdout).to.contain('something: ');
expect(stdout).to.not.contain(value);
next();
});
sendLine('yeaa');
});
it('should prompt the user (using promise)', function (next) {
promptly.prompt('something: ')
.then(function (value) {
expect(value).to.be('yeaa');
expect(stdout).to.contain('something: ');
next();
})
.catch(function () {
expect().fail();
next();
});
sendLine('yeaa');
});
});
describe('choose()', function () {
it('should keep asking on invalid choice', function (next) {
promptly.choose('apple or orange? ', ['apple', 'orange'], function (err, value) {
expect(err).to.be(null);
expect(value).to.be('orange');
expect(stdout).to.contain('apple or orange? ');
expect(stdout.indexOf('apple or orange')).to.not.be(stdout.lastIndexOf('apple or orange'));
expect(stdout).to.contain('Invalid choice');
next();
});
sendLine('bleh');
sendLine('orange');
});
it('should error on invalid choice if retry is disabled', function (next) {
promptly.choose('apple or orange? ', ['apple', 'orange'], { retry: false }, function (err) {
expect(err).to.be.an(Error);
expect(err.message).to.contain('choice');
expect(stdout).to.contain('apple or orange? ');
next();
});
sendLine('bleh');
});
it('should be ok on valid choice', function (next) {
promptly.choose('apple or orange? ', ['apple', 'orange'], function (err, value) {
expect(err).to.be(null);
expect(value).to.be('apple');
expect(stdout).to.contain('apple or orange? ');
next();
});
sendLine('apple');
});
it('should not use strict comparison when matching against valid choices', function (next) {
promptly.choose('choices: ', [1, 2, 3], function (err, value) {
expect(err).to.be(null);
expect(typeof value).to.equal('number');
expect(value).to.be(1);
expect(stdout).to.contain('choices: ');
next();
});
sendLine('1');
});
it('should work using promise', function (next) {
promptly.choose('apple or orange? ', ['apple', 'orange'])
.then(function (value) {
expect(value).to.be('orange');
expect(stdout).to.contain('apple or orange? ');
next();
})
.catch(function () {
expect().fail();
next();
});
sendLine('orange');
});
});
describe('confirm()', function () {
it('should be ok on valid choice and coerce to boolean values', function (next) {
async.forEachSeries(['yes', 'Y', 'y', '1'], function (truthy, next) {
promptly.confirm('test yes? ', { retry: false }, function (err, value) {
expect(err).to.be(null);
expect(value).to.be(true);
expect(stdout).to.contain('test yes? ');
next();
});
sendLine(truthy);
}, function () {
async.forEachSeries(['no', 'N', 'n', '0'], function (truthy, next) {
promptly.confirm('test no? ', function (err, value) {
expect(err).to.be(null);
expect(value).to.be(false);
expect(stdout).to.contain('test no? ');
next();
});
sendLine(truthy);
}, next);
});
});
it('should keep asking on invalid choice', function (next) {
promptly.confirm('yes or no? ', function (err, value) {
expect(err).to.be(null);
expect(value).to.be(true);
expect(stdout).to.contain('yes or no? ');
expect(stdout.indexOf('yes or no')).to.not.be(stdout.lastIndexOf('yes or no'));
next();
});
sendLine('bleh');
sendLine('y');
});
it('should error on invalid choice if retry is disabled', function (next) {
promptly.confirm('yes or no? ', { retry: false }, function (err) {
expect(err).to.be.an(Error);
expect(err.message).to.not.contain('Invalid choice');
expect(stdout).to.contain('yes or no? ');
next();
});
sendLine('bleh');
});
it('should work using promise', function (next) {
promptly.confirm('yes or no? ')
.then(function (value) {
expect(stdout).to.contain('yes or no? ');
expect(value).to.be(true);
next();
})
.catch(function () {
expect().fail();
next();
});
sendLine('y');
});
});
describe('password()', function () {
it('should prompt the user silently', function (next) {
promptly.password('something: ', function (err, value) {
expect(value).to.be('yeaa');
expect(stdout).to.contain('something: ');
expect(stdout).to.not.contain('yeaa');
next();
});
sendLine('yeaa');
});
it('should not trim by default', function (next) {
promptly.password('something: ', function (err, value) {
expect(value).to.be(' yeaa ');
expect(stdout).to.contain('something: ');
expect(stdout).to.not.contain(' yeaa ');
next();
});
sendLine(' yeaa ');
});
it('show allow empty passwords by default', function (next) {
promptly.password('something: ', function (err, value) {
expect(value).to.be('');
expect(stdout).to.contain('something: ');
next();
});
sendLine('');
});
it('should prompt the user silently using promise', function (next) {
promptly.password('something: ')
.then(function (value) {
expect(value).to.be('yeaa');
expect(stdout).to.contain('something: ');
expect(stdout).to.not.contain('yeaa');
next();
})
.catch(function () {
expect().fail();
next();
});
sendLine('yeaa');
});
});
Zerion Mini Shell 1.0