foreword/test/maybe/withDefault.js

A JavaScript library for functional data transformation

const test = require('tape')
const { withDefault } = require('../../maybe')

test('maybe withDefault: returns first value if second is null', t => {
  const result = withDefault(1)(null)

  t.same(result, 1)
  t.end()
})

test('maybe withDefault: returns second value if not null', t => {
  const result = withDefault(1)(2)

  t.same(result, 2)
  t.end()
})