import { generateIv , encrypt , decrypt } from './crypto' ; describe ( 'Crypto Spec' , function ( ) { it ( 'Should generate an IV with a length of 12' , function ( ) { const iv = generateIv ( ) ; expect ( iv . byteLength ) . toEqual ( 16 ) ; } ) ; it ( 'Should encrypt something' , function ( ) { const iv = Buffer . from ( '00' . repeat ( 16 ) , 'hex' ) ; const encryptedText = encrypt ( 'secret' , iv , '00' . repeat ( 16 ) ) ; expect ( encryptedText ) . toEqual ( '48e9817c5a32' ) ; } ) ; it ( 'Should decrypt something' , function ( ) { const iv = Buffer . from ( '00' . repeat ( 16 ) , 'hex' ) ; const encrypted = '48e9817c5a32' ; const decryptedText = decrypt ( encrypted , iv , '00' . repeat ( 16 ) ) ; expect ( decryptedText ) . toEqual ( 'secret' ) ; } ) ; } ) ;