

:doctest:
:functional-zcml-layer: ftesting.zcml

Only our local ftesting.zcml is considered during test runs:

    >>> from zope.component import getUtility
    >>> from z3c.testsetup.tests.layered_cave.bar import IBar
    >>> getUtility(IBar, name='bar utility')().do_bar()
    Bar!

    >>> from z3c.testsetup.tests.layered_cave.foo import IFoo
    >>> getUtility(IFoo, name='foo utility')
    Traceback (most recent call last):
    ...
    ComponentLookupError: (<InterfaceClass ...foo.IFoo>, 'foo utility')
