eslint-plugin-prettier VS jest

You can also add ESLint now (props to @femincan for the suggestion). It comes with recommended settings for these plugins: typescript, prettier, react, react-hooks, jsx-a11y.

I recommend installing and configuring the eslint-plugin-prettier package in your project: https://github.com/prettier/eslint-plugin-prettier

eslint-plugin-prettier

Another approach that you can also take is a sort of "prettier as an ESLint plugin" option, such with eslint-plugin-prettier. The idea is that the developer only needs to run one tool (ESLint), but you add a plugin to ESLint that just calls prettier and converts the prettier error messages to ESLint error messages. I've worked at companies that have used this approach, and it makes setting up your editor/IDE very simple, because you've only got one tool to configure. That said, I personally don't like it because it forces you to use ESLint's "auto fix" functionality, which I find works well for formatting, but IME less well for some of the other lints.

A comprehensive set of formatting (through eslint-plugin-prettier) and linting rules, generated with Clinter. Once again, each package can easily extend the root configuration.

The eslint-config-prettier package disables all ESLint rules that might conflict with Prettier. This lets us use ESLint configurations without letting it get in the way when using Prettier. We can then use the eslint-plugin-prettier package to integrate Prettier rules into ESLint rules. Finally, we must set the Prettier rules in the ESLint configuration file. Add the following configuration to the .eslintrc file in the root directory of the application:

We run prettier through eslint, and run eslint through jest which provides parallelism. eslint also has a cache... So I'm not sure what dprint gets you over that?

https://github.com/jest-community/jest-runner-eslint

https://github.com/prettier/eslint-plugin-prettier

I personally use eslint-plugin-prettier so Prettier formatting issues are shown in my editor and are reported when linting using ESLint.

When installing the Prettier and ESLint extensions for VSCode, formatting and linting will also work within VSCode for any files in the monorepo. Only tweak required to make this work is to configure the Prettier plugin for ESLint (see example .eslintrc.json). Otherwise Prettier and ESLint will get in each other’s way and make for a poor editing experience. To make this work, the following two settings will also need to be configured in a .vscode/settings.json configuration (see settings.json):

NOTICE: The template does not use eslint-plugin-prettier and prettier-eslint. So I recommend that running commands individually. e.g. prettier && eslint.

There are several testing approaches you can take to ascertain the functionality of the auth API. One way would be to automate the testing using unit tests with tools like Jest and Supertest. Alternatively, you can make use of API clients like Postman or the Thunder Client VS Code extension to test the API.

GitHub | Website

Jest

you have selected a testing framework. In my case, it's Jest with Supertest

Jest, created and maintained by Facebook, is a JavaScript testing framework with a focus on simplicity. It is often recognized for its zero-configuration setup and seamless integration, especially with React applications, making it a favored choice for developers in both small-scale projects and large enterprise applications.

Jest (https://jestjs.io/)

console.error Jest encountered an unexpected token Jest failed to parse a file. This happens e.g. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax. Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration. By default "node\_modules" folder is ignored by transformers. Here's what you can do: • If you are trying to use ECMAScript Modules, see https://jestjs.io/docs/ecmascript-modules for how to enable it. • If you are trying to use TypeScript, see https://jestjs.io/docs/getting-started#using-typescript • To have some of your "node\_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config. • If you need a custom transformation specify a "transform" option in your config. • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option. You'll find more details and examples of these config options in the docs: https://jestjs.io/docs/configuration For information about custom transformations, see: https://jestjs.io/docs/code-transformation

Note: I will be using Jest as testing framework throughout the examples.

We use Jest Framework for testing. Jest is not a dogma, and, of course, in its place can be any other test runner, such as Mocha or Ava. Let's focus on tests. I'll provide a short example because I don’t want to waste your time. You can find the full version here. It's crucial to read the comments in the code below. Let's go!

Jest has long been my favorite got to test runner when it comes to UI unit and integration testing. With tools like React Testing Library (Testing Library framework for React) you get the benefit of very easy to write and maintain tests, as well as a quick and efficient way to run our tests.