some-values

I don't believe in magic

I don't believe in magic numbers
I don't believe in magic strings

When writing tests we often specify values

api.save(5)
expect(api.validate).calledWith(5)

This reads like 5 is important, but what if 5 isn't important, we are simply saying 'given I save a number I get a number'. Enter some-values...

api.save(a.number)
expect(api.validate).calledWith(a.number)

Install

npm install --save-dev some-values

Use it

Basic

someValues = require('some-values')

a = someValues()

a.string // Returns a random string
a.string // Returns the same string

a.number // Returns a random number
a.number // Returns the same number

Multiple

Need multiple values?

a = someValues()
b = someValues()

a.string // Returns a random string
b.string // Returns another random string
a.string // Returns the first string

Supported Values

String

A random Length of Char
0 < Length < 20
Char = [a..b]

Number

A random number of Value
0 < Value < 100

Digit

A random number of Value
0 <= Value <= 9

Bring your own

a = someValues({
  string: () => 'myOwnString'
  reallyLongNumber: () => 1000 + Math.floor(Math.random()*1000)
  })

What's on the horizon?

Add Date, ISO Datetime