CS代写 COMP6080, the two easiest places to look are:

Web Front-End Programming
Testing – Unit Tests, Component Tests

Component Testing

Component testing is a process of unit testing where we ensure that our Framework’s components, regardless of how they’re integrated into the broader app, function as expected.
Concepts surrounding unit & component testing were discussed in the testing introduction lecture.

Testing ReactJS
There are two main libraries we will use to test ReactJS components:
1. Jest – a Javascript unit testing framework
2. Enzyme – A unit testing framework specific to ReactJS, that
further extends our capabilities

Testing ReactJS – Installation
Thankfully, Create-react-app (CRA) installs many of the dependencies related to Jest as part of it’s installation. If using CRA, there are two extra steps you need to take:
1 $ yarn add –dev react-test-renderer # For the renderer
2 $ yarn add –dev enzyme enzyme-adapter-react-16 # For installation of Enzyme

Testing Element Example
Let’s take a look at a basic black-box test for a simple ReactJS component. We are expected “title” to be optional with a fallback of ‘Click Me!’
export const Button = ({ onClick, title = ‘Click Me!’, mode }) => {
const _class = mode === ‘dark’ ? ‘dark-mode’ : ‘light-mode’;

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