During this activity, we will configure Enzyme within our React project. By default, CRA creates a file called setupTest.js. This file allows us to provide a reference to the adapter package that we installed in 02-We-CRA16. The configuration makes enzyme and enzyme-adapter-react-16 available to our entire React project so that we are able to utilize it in every test file we create.
Perform the following actions inside of the src/setupTest.js file:
1. Import the configure method from the enzyme package.
2. Import the Adapter class from enzyme-adapter-react-16.
3. Configure the enzyme adapter to be the default adapter in our project.
1. Invoke the configure method.
2. Pass it an object with a key of adapter, and its value should be a new instantiated instance of the Adapter class that was imported earlier.
{
"name": "click-counter-testing",
"version": "0.1.0",
"private": true,
"dependencies": {
"@testing-library/jest-dom": "^5.11.9",
"@testing-library/react": "^11.2.5",
"@testing-library/user-event": "^12.7.1",
"enzyme": "^3.11.0",
"enzyme-adapter-react-16": "^1.15.6",
"react": "^16.14.0",
"react-dom": "^16.14.0",
"react-scripts": "4.0.2",
"web-vitals": "^1.1.0"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
}
}