docs: phpunit deprecated the support for using comma-separated values with the --group CLI options

[Franky5831]

PHP Version

8.4

CodeIgniter4 Version

4.6.1

CodeIgniter4 Installation Method

Composer (using codeigniter4/appstarter)

Which operating systems have you tested for this bug?

macOS

Which server did you use?

apache

Database

No response

What happened?

I ran the phpunit tests as i red in the Codeigniter 4 documentation with the following command:
vendor/bin/phpunit --exclude-group DatabaseLive,CacheLive

and I got the following message:

There were 2 PHPUnit test runner warnings:
1) Using comma-separated values with --exclude-group is deprecated and will no longer work in PHPUnit 12. You can use --exclude-group multiple times instead.

As you can read here that has been deprecated.
The new syntax is supposed to be:
vendor/bin/phpunit --exclude-group DatabaseLive --exclude-group CacheLive

Steps to Reproduce

Run the following commands:

1. vendor/bin/phpunit --exclude-group DatabaseLive,CacheLive
2. vendor/bin/phpunit --exclude-group DatabaseLive --exclude-group CacheLive

Expected Output

1. A warning
2. Nothing

Anything else?

Should I just create a pull request next time or do you prefer a issue for this kind of reports?

[michalsn]

Thanks, you can send a PR if you want.