lack of testing info in README

[pbelskiy]

Hello! Where can I find correct information how to test nginx?

This repo has only master branch, no branches which have correlation to nginx version.

So I try to run latest tests from this repo (master branch) on Ubuntu 22 with installed nginx "apt install nginx-full" and a lot of failed tests
probably due to tests are new and nginx is old.

How do you do it?

[pluknet]

nginx-tests, as primarily a developer test suite, is used to run against nginx mainline and the latest stable branch.
(for current versions numbers, see https://nginx.org/en/download.html).
Once a new stable branch is created, support for the previous one that becomes legacy is removed.
Occasionally, support for the previous stable branch may be extended, for practical reasons.