rewire | Easy monkey-patching for node.js unit tests | Unit Testing library

I’m using react-app-rewired and I want to disable the overlay for Typescript warnings that appears every time I compile. For reasons I don't understand, warnings that the VSCode Typescript checker doesn't pick up appear on the overlay; webpack is being a stricter enforcer (stricter than I want it to be in fact).

Anyway, I tried react-app-rewired start --no-client-overlay and I tried this for my config-overrides.js file:

Help me install the react-pdf package (https://github.com/diegomura/react-pdf) on create react app. I can't make changes to webpack.config. I do it according to the instructions I found here from the user River Twilight: How to update webpack config for a react project created using create-react-app?

According to the instructions of installing react-pdf

1. I run npm install process browserify-zlib stream-browserify util buffer assert
2. Created config-override.js in project root folder
3. Next you need to insert the following lines into the config:

When I start my react project in Fedora 32 using command yarn start, it shows error like this:

So im having an issue creating a app where i cant run npm build without this pooping up,

PS C:\Users\finnm\OneDrive\Desktop\Finn's stuff\NFT\DenOfDragons\minting_staking_dapp> npm start

minting_staking_dapp@0.1.0 start react-app-rewired start

I am just getting started unit testing nodejs. I have been using mocha, chai and sinon.

I hit a snag when I wanted to test a function which is not exported. proxyquire looks good, as does rewire.

There are lots of tutorials, but they tend to be simplistic. E.g

After upgrading react-scripts to v5, craco start does not work properly. App starts with no error but in browser, there is a blank page and if i open inspector, i only see index.html codes not react codes. It was working well with react-scripts@4.0.3. Here is my local files;

package.json

I have a react app (using create react app) and then a component library (using webpack directly). One component in the component library needs to load a png file in one of the components that it exports. In the webpack config for the component library I have a section such as:

Trying to run this on docker, but I get EBADENGINE unsupported engine warning (and subsquent build fail, which I assume are related at least somewhat).

Docker command (from cloned project root with package.json file):

I have the following package.json for my React project.