    >>> from zope.component import getUtility, provideUtility

Test LuottokuntaLanguage
---------------------------------
    >>> from getpaid.luottokunta.interfaces import ILuottokuntaLanguage
    >>> from getpaid.luottokunta.utilities.luottokunta_utilities import LuottokuntaLanguage
    >>> provideUtility(LuottokuntaLanguage(), provides=ILuottokuntaLanguage)
    >>> language_culture = getUtility(ILuottokuntaLanguage)
    >>> language_bindings = ('fi', 'en', [])
    >>> language_culture(language_bindings)
    'FI'
    >>> language_bindings = ('ja', 'sv', [])
    >>> language_culture(language_bindings)
    'SE'
    >>> language_bindings = ('', '', ['ru','fi'])
    >>> language_culture(language_bindings)
    'FI'
    >>> language_bindings = ('', '', [])
    >>> language_culture(language_bindings)
    'EN'
