How to test a small SPA?

Question

JavaScript

Hello. There is a page (small SPA on pure JS).
You need to cover it with tests (unit + UI tests) and test it in most mobile browsers on android.
There are 2 questions:
1. What framework to use for testing
2. Is there a service (can be paid) where you can upload these tests and it will test it all in mobile browsers.
Thanks in advance!

Answer 1

small SPA on pure JS

can be tested manually on 2-3 devices, based on the bottleneck:
1. Browser support for the necessary functions: https://caniuse.com/
2. Checking for sudden disconnections ( Fiddler debugger ) and restoring work after an application crash.
3. Correct handling of all touch events (UI).
This can be done both by yourself and by ordering a similar job on freelance.