import fs from 'fs'
import test from 'ava'
import fetchData, { splitNewLines, cleanupArrayOfStrings, stringCsvToDataObject } from '../data.js'

test('splitNewLines', t => {
  const result = splitNewLines(`foo\nbar`)

  t.deepEqual(result, ['foo', 'bar'])
})

test('cleanupArrayOfStrings', t => {
  const result = cleanupArrayOfStrings([
    '',
    ' foo',
    'bar ',
    ''
  ])

  t.deepEqual(result, ['foo', 'bar'])
})

test('clean an array made from a string of new lines', t => {
  const result = cleanupArrayOfStrings(
    splitNewLines(`
      foo
      bar
    `)
  )

  t.deepEqual(result, ['foo', 'bar'])
})

test('stringCsvToDataObject', t => {
  const result = stringCsvToDataObject('they,them,them, their,themself')

  t.deepEqual(result, {
    nominative: 'they', accusative: 'them', pronominalPossessive: 'them', predicativePossessive: 'their', reflexive: 'themself'
  })
})

test('stringCsvToDataObject with missing pronominalPossessive', t => {
  const result = stringCsvToDataObject('they,them,,their,themself')

  t.deepEqual(result, {
    nominative: 'they', accusative: 'them', pronominalPossessive: 'them', predicativePossessive: 'their', reflexive: 'themself'
  })
})

test('database.csv loads into array of valid data', t => {
  const data = fetchData()

  t.truthy(Array.isArray(data))
  t.is(typeof data[0], 'object')
  t.is(typeof data[0].nominative, 'string')
})