TDD

Question 1

TDD means…

Answer 1

Test Driven Development

Question 2

BDD means…

Answer 2

Behavior Driven Development (based on expected output)

Question 3

import chai
(specifically 'expect')

Answer 3

const { expect } = require(‘chai’);

(const { toBeTested } = require(‘.’) ) imports index.js

Question 4

basic chai structure

Answer 4

describe("function", () => {
    it("does something", ()=>{
      ... setup ...
      expect(function(x)).to.equal("result");
    });
  });

Question 5

chai for errors

Answer 5

needs anonymous function:
expect(() => functionBeingTested()).to.throw;
or
expect(() => functionBeingTested()).to.throw(TypeError/ReferenceError, 'error message')