suit VS Sinon.JS

As style sheets became the responsibility of larger and larger teams, CSS’ global scope and specificity were often at odds with team dynamics. Style collisions became increasingly common, where changes introduced by one developer would inadvertently affect styles elsewhere on the website. As the old joke goes: two CSS properties walk into a bar; a bar stool in a completely different bar falls over. As these issues and the number of people experiencing them multiplied, so too did new CSS methodologies, particularly those focused on style sheet architectures. Before long, we had SMACSS, SUIT CSS, BEM, ITCSS, and more. Third party supersets of CSS also appeared during this time, such as Sass and LESS, which gave style sheet authors access to scripting features like variables and loops.

CSS (Cascading Style Sheets) are rules to describe how your HTML elements look. Writing good CSS is hard. It usually takes many years of experience and frustration of shooting yourself in the foot before one is able to write maintainable and scalable CSS. CSS, having a global namespace, is fundamentally designed for web documents, and not really for web apps that favor a components architecture. Hence, experienced front end developers have designed methodologies to guide people on how to write organized CSS for complex projects, such as using SMACSS, BEM, SUIT CSS, etc.

This is actually super bad practice. I really dislike scoped css.

When I see devs using scoped css the class names always end up like `.box` or `.name`.

Having to think about classnames and writing Sass makes me much more aware of the structure of the components I'm styling. Frankly I think only JS oriented devs like scoped CSS and frontend who love html/css and the challenges of architecturing good CSS don't egt any benefit out of styled components (since you're using atomic css like Tailwind and/or BEM-style which always "scopes" classnames with the component name.

In general any solid guidelines makes CSS instantly 10x better and that's all most projects needs, and it's often what most projects lack.

SuitCSS works great with Vue in my experience, and can even be linted with postcss-bem-linter :

https://github.com/suitcss/suit/blob/master/doc/naming-conve...

SUITCSS

Tachyons developer, Adam Morse in this talk at DevShop London 2016, talks about motivation behind Tachyons. He discusses the problem of continuous over-riding your own written CSS code, writing tons of CSS code, struggle to keep all this info in your head and the need to refactor 200Kb CSS file. His answer to the problem is Tachyons. SUIT CSS (Style Tools for UI Components). was the initial inspiration that lead to creation of Tachyons. Unlike Bootstrap where you redefine a component multiple times, SUIT had a class which would not redefine itself or mutate later.

This component syntax is mainly taken from Suit CSS with minor modifications.

suitcss/suit - Style tools for UI components

If you are using a mocking library, such as sinon, jest-mock, or ts-mockito, make sure that it is compatible with Jest. You may need to install additional packages or configure them in your configuration file. For example, to use sinon with Jest, you can install the sinon-jest package and add the following to your configuration file:

Mocha is a test runner, Chai is an assertion library, Sinon is a mocking library, this normally the combination you would need to use if you choose mocha, but there are others.

Instead, use pure functions + dependency inject your stubs (e.g. parameter to function). Also note, no need for Sinon or some other test double library. JavaScript is so good nowadays to easily make objects/classes/functions or any combination thereof on the fly that are terse.

I've had some good experiences with Ava + Sinon. I've personally disliked Jest because it seemed to do some weird trickery in the background that prevented me from using ES modules.

🤖 You can use the Mocha testing framework with the Chai assertion library to write tests for your Express controller. You can also use the Sinon library to mock the database calls. This will allow you to test the controller without actually making a call to the database. You can also use the SuperTest library to make HTTP requests to the controller and test the response.

You can use sinon js to create a mock version of your http library (axios) that responds with the data you’re expecting.

Assertions are the checkpoints of our test block that confirm if an automated test has passed or failed. Cypress bundles the Chai, jQuery, and Sinon.JS libraries for assertions. They check the desired, expected application in which the test is running. A complete listing of assertions can be found in the documentation here.

ES module is basically a "class" that you inject dependencies into through imports. And for tests you just use something like sinon to swap module dependencies for mocks.

You can use a tool like sinon to pass in your own function instead of the real moment library. From there you can write tests that ensure moment was invoked appropriately.

Let's configure tests with mocha, chai and sinon on Typescript in a few steps.