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some-values

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  • License ISC

Create non-magical values for unit tests

Package Exports

  • some-values

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (some-values) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

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