'Create a directory containing a Python package named I{dummy} with a
I{plugins} subpackage.
@type root: L{FilePath}
@param root: The directory in which to create the hierarchy.
@type name: C{str}
@param name: The name of the directory to create which will contain
the package.
@type pluginName: C{str}
@param pluginName: The name of a module to create in the
I{dummy.plugins} package.
@rtype: L{FilePath}
@return: The directory which was created to contain the I{dummy}
package.'

def createDummyPackage(self, root, name, pluginName):

    directory = root.child(name)
    package = directory.child('dummy')
    package.makedirs()
    package.child('__init__.py').setContent('')
    plugins = package.child('plugins')
    plugins.makedirs()
    plugins.child('__init__.py').setContent(pluginInitFile)
    pluginModule = plugins.child((pluginName + '.py'))
    pluginModule.setContent(pluginFileContents(name))
    return directory
