felte VS tinyspy

How does it compare to Felte?

Don’t know if it can help, but I discovered this only recently, which was really missing for me with svelte: https://felte.dev/

I’ve been experimenting with web components in order to build a wrapper for Felte that can easily be used with vanilla JS. One of Felte’s features is the ability to use custom field components that are not based on the browser’s native inputs (input, textarea, select). The example I show is a div with an attribute [contenteditable=“true”]. While testing this experiment I found some weird behaviour coming from Firefox: while I could perfectly click each field and type of it, if I tried to use the form only using the keyboard (tabbing to each field) the focus moved but trying to type would always result in the text being added to the first field I focused.

There’s an example on Felte’s repo setting this up!

Ah. Of course 😅. mwc-textfield is not a native input. Felte relies on native inputs. You can use createField (by creating your own "wrapper" Svelte component that will render your ) or... better yet... you can experiment with what I've been working for the past weeks.

For the past few weeks I’ve taken the (arguably pointless) work of migrating Felte from using Jest to uvu. This is a really tedious work by itself, but one of details that would have made this work even more tedious is that Jest prefers assertions to the style of expect(…).toBe* while uvu gives you freedom to choose any assertion library, although there’s an official uvu/assert module that comes with assertions to the style of assert.is(value, expected).

After more than a year of work, I am proud to announce the release of version 1.0.0 of Felte!

You may have heard of vite, the slim fast dev server that scored an amazing as deserved 98% satisfaction on the state of js survey 2021. It's creators found unit testing too cumbersome and slow and decided to add their own perspective to the task. The result is vitest: it runs a vite server under the hood to transform the code to test as fast as possible, uses an enhanced flavor of chai to have jest-compatible assertions, integrates DOM mocking using jsdom or happy-dom and even the tiny-spy library that was just built as a separate library to allow for easy reuse is small and compatible with jest.

Assertions on mock functions (compatible with sinonjs and tinyspy).