Initial imports
===============
    >>> from zope.component import getUtility, provideUtility

ICountries
==========
    >>> from collective.cart.shipping.interfaces import ICountries
    >>> from collective.cart.shipping.utility.country import Countries
    >>> provideUtility(Countries(), provides=ICountries)
    >>> countries = getUtility(ICountries)()
    >>> countries.get('FI')
    u'Finland'
    >>> countries.get('US')
    u'United States'
    >>> countries.get('JP')
    u'Japan'
    >>> otl = getUtility(ICountries).ordered_tuple_list()
    >>> len(otl)
    248
    >>> otl[0]
    (u'AF', u'Afghanistan')
