Plone product installation
==========================

Check if our product is installable::

    >>> portal = layer['portal']
    >>> quick_installer = portal.portal_quickinstaller
    >>> installable_products = quick_installer.listInstallableProducts(
    ...                                         skipInstalled=False)
    >>> products = [p['id'] for p in installable_products]


We check if our product is installed::

    >>> 'collective.layout.authpersonalbar' in products
    True
