var assert = require('assert')
var utils = require('../src/utils')

/* global describe, it */

describe('utils', function () {

  describe('getRemovable', function () {

    it('should return removable documents', function () {

      var db = {
        posts: [
          {id: 1, comment: 1}
        ],
        comments: [
          {id: 1, postId: 1},
          // Comments below references a post that doesn't exist
          {id: 2, postId: 2},
          {id: 3, postId: 2}
        ]
      }

      var expected = [
        {name: 'comments', id: 2},
        {name: 'comments', id: 3}
      ]

      assert.deepEqual(utils.getRemovable(db), expected)

    })
  })

  describe('toNative', function () {

    it('should convert string to native type', function () {
      // should convert
      assert.strictEqual(utils.toNative('1'), 1)
      assert.strictEqual(utils.toNative('true'), true)
      // should not convert
      assert.strictEqual(utils.toNative(''), '')
      assert.strictEqual(utils.toNative('\t\n'), '\t\n')
      assert.strictEqual(utils.toNative('1 '), '1 ')
      assert.strictEqual(utils.toNative('01'), '01')
      assert.strictEqual(utils.toNative(' 1'), ' 1')
      assert.strictEqual(utils.toNative('string'), 'string')
      assert.strictEqual(utils.toNative(1), 1)
      assert.strictEqual(utils.toNative(true), true)
    })

  })
})