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Assertion Styles

Assertion Styles

This section of the guide introduces you to the three different assertion styles that you may use in your testing environment. Once you have made your selection, it is recommended that you look at the API Documentation for your selected style.

Assert

View full Assert API

The assert style is exposed through assert interface. This provides the classic assert-dot notation, similar to that packaged with node.js. This assert module, however, provides several additional tests and is browser compatible.

var assert = require('chai').assert
  , foo = 'bar'
  , beverages = { tea: [ 'chai', 'matcha', 'oolong' ] };

assert.typeOf(foo, 'string'); // without optional message
a