@bemquery/karma-sinon-chai

Sinon + Chai + Sinon-Chai for Karma

Requirements

This Karma plugin requires Karma >=0.10

Installation

Install the module via npm

$ npm install [--save-dev] @bemquery/karma-sinon-chai

Add sinon-chai to the frameworks key in your Karma configuration:

module.exports = function(config) {
    'use strict';
    config.set({
        frameworks: ['mocha', 'sinon-chai'],

        # chai config
        client: {
            chai: {
                includeStack: true
            }
        }

        #...
    });
}

Usage

Each of the different Chai assertion suites is available in the tests:

describe( 'karma tests with chai', () =>
{
    it( 'should expose the Chai assert method', () => {
        assert.ok( 'everything', 'everything is ok' );
    } );

    it( 'should expose the Chai expect method', () => {
        expect( 'foo' ).to.not.equal( 'bar' );
    } );

    it( 'should expose the Chai should property', () => {
        1..should.not.equal( 2 );
        should.exist( 123 );
    } );
} );

Sinon and Chai matchers for Sinon are also available:

describe( 'karma tests with sinon', () => {
    it( 'can spy on objects', ()=> {
        var foo =  {
            bar: () => {}
        };

        sinon.spy( foo, 'bar' );

        foo.bar( 'baz' );

        foo.bar.should.have.been.calledWith( 'baz' );
    } );
} );