Use params::provider instead of "mysql" to import sql

[teluq-pbrideau]

Summary

Use $mysql::params::provider instead of mysql to import a database in mysql::db.

As this parameter is already configured for some OS, I decided to define this variable for every OS, and use it.

Additional Context

See #1693

Related Issues (if any)

#1693

Checklist

• 🟢 Spec tests.
• 🟢 Acceptance tests.
• Manually verified. (For example puppet apply)

[teluq-pbrideau]

The tests for mysql::db now fail… not sure how to retreive the $mysql::params::provider from within the test…
https://github.com/puppetlabs/puppetlabs-mysql/blob/main/spec/defines/mysql_db_spec.rb#L42

Of course this should change the mysql command:
expect(subject).to contain_exec('test_db-import').with_command('cat /tmp/test.sql | mysql test_db')

But I tried without success to retreive the variable:
let(:pre_condition) { 'include mysql::params' } and expect(subject).to contain_exec('test_db-import').with_command("cat /tmp/test.sql | #{mysql::params::provider} test_db")

Is the only option to define provider for every OS in the test?

      provider = if facts[:os]['family'] == 'RedHat'
                   'mariadb'
                elsif facts[:os]['family'] == 'Suse'
                   'mariadb'
                elsif facts[:os]['name'] == 'Debian'
                   'mariadb'
                elsif facts[:os]['name'] == 'Ubuntu'
                  if Puppet::Util::Package.versioncmp(facts[:os]['release']['major'], '20') < 0 &&
                     Puppet::Util::Package.versioncmp(facts[:os]['release']['major'], '16') >= 0
                    'mysql'
                  else
                    'mariadb'
                  end
                end

With it, the test pass, but is there a cleaner way to retreive the information?