integration test: add agent loglevel test

[dougsland]

Adding test for the LogLevel option in the configuration.
Related #416

Signed-off-by: Douglas Schilling Landgraf dougsland@redhat.com

[dougsland]

Testing locally:

OS:

# cat /etc/redhat-release
CentOS Stream release 9

Running:

# echo "tier: 1" >> tests/tier0/bluechi-agent-loglevel/main.fmf
# tmt run test --filter tier:1

/var/tmp/tmt/run-001

/plans/tier0
    discover
        how: fmf
        directory: /root/bluechi/tests
        filter: tier:1
        summary: 1 test selected
    provision
        how: local
        multihost name: default-0
        arch: x86_64
        distro: CentOS Stream 9
        summary: 1 guest provisioned
    prepare
        queued push task #1: push on default-0

        push task #1: push on default-0

        queued prepare task #1: Set containers setup on default-0

        prepare task #1: Set containers setup on default-0
        how: shell
        name: Set containers setup
        overview: 1 script found

        queued pull task #1: pull on default-0

        pull task #1: pull on default-0

        summary: 1 preparation applied
    execute
        queued execute task #1: default-0 on default-0

        execute task #1: default-0 on default-0
        how: tmt
        progress:
        summary: 1 test executed
    report
        how: junit
        output: /var/tmp/tmt/run-001/plans/tier0/report/default-0/junit.xml
        summary: 1 test passed
    finish

        summary: 0 tasks completed

total: 1 test passed

[engelmi]

A minor nit, otherwise LGTM