freeCodeCamp/guide/portuguese/miscellaneous/chaijs-assertexpression-message/index.md

title	localeTitle
Chaijs Assertexpression Message	Chaijs Assertexpression Message

@param {Mixed} expressionto test for truthiness

• @param {String} messageto exibir no erro

Escreva suas próprias expressões de teste.

assert('foo' !== 'bar', 'foo is not bar'); 
 assert(Array.isArray(<a href='http://chaijs.com/api/assert/' target='_blank' rel='nofollow'>]), 'empty arrays are arrays'); 

detalhes: [http://chaijs.com/api/assert/