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![Mocha is a JavaScript test framework running on Node.js and in the browser. var assert = require('assert'); describe('Array', function() { describe('#indexOf()', function() { it('should return -1 when the value is not present', function() { assert.equal(-1, [1,2,3].indexOf(4)); }); }); });](https://image.slidesharecdn.com/uni-testing-react-redux-170914102226/75/How-to-unit-test-your-React-Redux-app-12-2048.jpg)
Uploaded byAlin Pandichi
How to unit test your React/Redux app
The document discusses various JavaScript testing frameworks and tools for React, including Enzyme, Jest, Mocha, Chai, and Sinon.js, highlighting their functionalities and examples. It also mentions additional resources for testing Redux and mocking HTTP requests. Finally, it provides links to related tools and resources for further exploration.
How to unit test your React/Redux app
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- 11. Jest: Capture snapshots of React trees or other serializable values to simplify testing and to analyze how state changes over time. describe('Welcome (Snapshot)', ()=> { it('Welcome renders hello world', () => { const json = renderer.create(<Welcome />).toJSON(); expect(json).toMatchSnapshot(); }); });
- 12. Mocha is a JavaScript test framework running on Node.js and in the browser. var assert =require('assert'); describe('Array', function() { describe('#indexOf()', function() { it('should return -1 when the value is not present', function() { assert.equal(-1, [1,2,3].indexOf(4)); }); }); });
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- 14. Sinon.js spies, stubs and mocks for JavaScript. Works with any unit testing framework. it('makes a GETrequest for todo items', function () { sinon.stub(jQuery, 'ajax'); getTodos(42, callbackFunction); assert(jQuery.ajax.calledWithMatch({ url: '/todo/42/items' })); });
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Editor's Notes
- #2 Hello and welcome to my talk about Covariance and Contravariance. Now, you must be wondering “What do covariance and contravariance have to do with dogs?” The answer to that is… Nothing! Absolutely nothing. This is one of the images I got as a result for an image search for “variance”. So I thought: “Sure, why the hell not?!”
- #3 Okay, let me introduce myself. My name is Alin and this is me facilitating the open space during one of the Bucharest Agile Meetup events.
- #4 I also organize monthly Coding Dojos. I&apos;m one of the co-organizers of the Bucharest Java User Group. I am part of an awesome global team that organizes the Global Day of Coderetreat.
- #5 During working hours, I am a software developer at Mozaic Labs, building eventriX