Justification

Adds tests according to the CI wiki specifically the standard test interface in the spec.

The playbook includes Tier1 level test cases that have been tested in the following contexts and is passing reliably: Classic and Container. Test logs are stored in the artifacts directory.

The following steps are used to execute the tests using the standard test interface:
Test environment

Make sure you have installed packages from the spec

    # rpm -q ansible python2-dnf libselinux-python standard-test-roles \
    ansible-2.3.2.0-1.fc26.noarch \
    python2-dnf-2.6.3-11.fc26.noarch \
    libselinux-python-2.6-7.fc26.x86_64 \
    standard-test-roles-2.4-1.fc26.noarch

Run tests for Classic

    # export ANSIBLE_INVENTORY=$(test -e inventory && echo inventory || echo /usr/share/ansible/inventory)
        # ansible-playbook --tags=classic tests.yml

Run tests for Container

    # export ANSIBLE_INVENTORY=$(test -e inventory && echo inventory || echo /usr/share/ansible/inventory)
    # export TEST_SUBJECTS=docker:docker.io/library/fedora:26
        # ansible-playbook --tags=container tests.yml