import { test } from 'tap'

import { filterObject } from '../filter-object'

test('filterObject filters out', (t) => {
  const obj = { a: 1, b: 2, c: 3 }
  const res = filterObject(obj, () => false)
  t.same(res, {})
  t.end()
})

test('filterObject filters in', (t) => {
  const obj = { a: 1, b: 2, c: 3 }
  const res = filterObject(obj, () => true)
  t.same(res, obj)
  t.end()
})

test('filterObject filters on value', (t) => {
  const obj = { a: 1, b: 2, c: 3 }
  const res = filterObject(obj, (val) => val > 1)
  t.same(res, { b: 2, c: 3 })
  t.end()
})

test('filterObject filters on value and key', (t) => {
  const obj = { a: 1, b: 2, c: 3 }
  const res = filterObject(obj, (val, key) => key === 'b')
  t.same(res, { b: 2 })
  t.end()
})