Failure in test utility (grok.tests.utility)
Failed doctest test for grok.tests.utility.utility
  File "/home/wosc/dev/zope3/grok/trunk/src/grok/tests/utility/utility.py", line 0, in utility

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File "/home/wosc/dev/zope3/grok/trunk/src/grok/tests/utility/utility.py", line 7, in grok.tests.utility.utility
Failed example:
    grok.grok(__name__)
Exception raised:
    Traceback (most recent call last):
      File "/home/wosc/dev/zope3/grok/trunk/eggs/zope.testing-3.0-py2.4.egg/zope/testing/doctest.py", line 1348, in __run
        compileflags, 1) in test.globs
      File "<doctest grok.tests.utility.utility[1]>", line 1, in ?
        grok.grok(__name__)
      File "/home/wosc/dev/zope3/grok/trunk/src/grok/_grok.py", line 123, in grok
        grok_tree(module_info)
      File "/home/wosc/dev/zope3/grok/trunk/src/grok/_grok.py", line 127, in grok_tree
        grok_module(module_info)
      File "/home/wosc/dev/zope3/grok/trunk/src/grok/_grok.py", line 161, in grok_module
        register_utilities(utilities)
      File "/home/wosc/dev/zope3/grok/trunk/src/grok/_grok.py", line 318, in register_utilities
        component.provideUtility(factory, name=name)
      File "/home/wosc/dev/zope3/grok/trunk/parts/zope3/src/zope/component/globalregistry.py", line 156, in provideUtility
        base.registerUtility(component, provides, name, event=False)
      File "/home/wosc/dev/zope3/grok/trunk/parts/zope3/src/zope/component/registry.py", line 71, in registerUtility
        provided = _getUtilityProvided(component)
      File "/home/wosc/dev/zope3/grok/trunk/parts/zope3/src/zope/component/registry.py", line 355, in _getUtilityProvided
        raise TypeError(
    TypeError: The utility doesn't provide a single interface and no provided interface was specified.