teasier

Generate random values & make testing easier

Install

npm install teasier

How to use ?

After installing the plugin, just include it and create a new instance like this :

// Include this plugin
var Teasier = require("teasier");

// Create a new instance
var teasier = new Teasier();

Then you can call all the methods with teasier. You have two namespaces :

• Generators: Including methods for generating random values
• Helpers: Including helpers for testing and other utility functions

Methods (Generators)

teasier.generate.boolean

---

Generate a random boolean

teasier.generate.boolean(void);

Return values :

• true
• false

// Alternate loading
var teasier = new (require("teasier"))();

var bool = teasier.generate.boolean();
console.log(bool); // true or false

teasier.generate.integer

---

Generate a random integer

teasier.generate.integer(Int min, Int max);

Parameters:

• (Integer or null) min: Minimum or equal value for the returned random int (greater than or equal)
• (Integer or null) max: Maximum value for the returned random int (lower than only)

Return values :

• integer

// Alternate loading
var teasier = new (require("teasier"))();

var number = teasier.generate.integer();
console.log(number); // Can be any number

number = teasier.generate.integer(2, 5);
console.log(number); // can be 2 -> 4

number = teasier.generate.integer(null, 5);
console.log(number); // can be * -> 4

number = teasier.generate.integer(null, 5);
console.log(number); // can be * -> 4

// You can also generate negative numbers
number = teasier.generate.integer(-100, -97);
console.log(number); // can be -100 -> -98

teasier.generate.name

---

Generate a random name

teasier.generate.name(String gender);

Parameters:

• (String or null) gender: "m" for male - "f" for female - nothing for random gender

Return values :

• String (name)

// Alternate loading
var teasier = new (require("teasier"))();

var name = teasier.generate.name();
console.log(name); // "Johanna" for example

teasier.generate.domain

---

Generate a random domain name (like github.com for example)

teasier.generate.domain(void);

Return values :

• String (domain)

// Alternate loading
var teasier = new (require("teasier"))();

var domain = teasier.generate.domain();
console.log(domain); // "github.fr" for example

teasier.generate.email

---

Generate a random email

teasier.generate.email(String name, String lastname);

Parameters:

• (String or null) name: name for email
• (String or null) lastname: lastname for email

Return values :

• String (email)

// Alternate loading
var teasier = new (require("teasier"))();

var email = teasier.generate.email();
console.log(email); // "johanna.delaroche@github.com" for example

teasier.generate.word

---

Generate a random word

teasier.generate.word(Integer length);

Parameters:

• (Integer or null) length: Word length

Return values :

• String (word)

// Alternate loading
var teasier = new (require("teasier"))();

var word = teasier.generate.word();
console.log(word); // Random unreadable word

teasier.generate.paragraph

---

Generate a random paragraph

teasier.generate.word(Integer words, Integer length);

Parameters:

• (Integer or null) words: Number of words in the paragraph
• (Integer or null) length: Max length of the paragraph

Return values :

• String (paragraph ended by a dot)

// Alternate loading
var teasier = new (require("teasier"))();

var paragraph = teasier.generate.paragraph();
console.log(paragraph); // Random unreadable paragaph with space and a final dot.

Methods (Helpers)

teasier.helpers.getPower

---

Get power of a number

teasier.helpers.getPower(Integer number, Integer base);

Parameters:

• [required](Integer) number: Number
• [default: 10](Integer or null) base: Base for number

Return values :

• Integer (power)

// Alternate loading
var teasier = new (require("teasier"))();

var power = teasier.helpers.getPower(10);
console.log(power); // 1

power = teasier.helpers.getPower(256, 16);
console.log(power); // 2

teasier.helpers.getRandomItem

---

Get random item in an array

teasier.helpers.getRandomItem(Array arr);

Parameters:

• [required](Array) arr: Array to pick random number from

Return values :

• (a random value from this arrray)

// Alternate loading
var teasier = new (require("teasier"))();

var val = teasier.helpers.getRandomItem(["Marty McFly", "Doc Brown", "Jennifer Parker"]);
console.log(val); // "Marty McFly"

A note about generators

Some random generator might increase your test execution time a little bit.If you really want Mocha (or any testing tools) to give you the exact execution time of your test, generate the values outside the test.

var teasier = new (require("teasier"))();

suite('User', function () {
    var User = {};
    test('generate values', function (done) {
        User.gender = (teasier.generate.boolean() ? 'm' : 'f');
        User.name = teasier.generate.name(User.gender);
        User.age = teasier.generate.integer(null, 90);
        User.email = teasier.generate.email(User.name);
        done();
    });
	test('register', function (done) {
	    // do your stuff here
	    done();
	});