functionfoundry/test/not.js

Pure function JavaScript library

import test from 'tape'
import error from '../src/error'
import not from '../src/not'

test('not', (t) => {
  t.plan(5)
  t.equal( not( true ), false)
  t.equal( not( false ), true)
  t.equal( not( 1 ), false)
  t.equal( not( 0 ), true)
  t.equal( not( 'foo' ), error.value)
})