What are the basics of Chai assertions?

What are the basics of Chai assertions?

Chai is an assertion library for Node.js and browsers that allows you to write tests in a readable way. It provides several styles of assertions, including BDD (Behavior-Driven Development) and TDD (Test-Driven Development). Would you like to know about specific types of assertions?

Yes, what are the different types of assertions in Chai?

Chai offers three main styles of assertions: 'should', 'expect', and 'assert'. 'Should' allows you to write assertions in a natural language style, 'expect' is more expressive and chainable, while 'assert' is more traditional and function-based. Do you want examples of each?

That would be great! Can you provide examples?

Sure! For 'should', you might write expect(foo).to.be.a('string'). For 'expect', it could be expect(foo).to.equal('bar'). And for 'assert', you would use assert.equal(foo, 'bar'). Each style has its own advantages depending on your testing needs.

Thanks! How do I install Chai?

You can install Chai using npm by running npm install chai in your project directory. After that, you can require it in your test files. Need help with anything else?