glanceclient tests failing on fake_host

Our builds (with test suite enabled) have been plagued by the following error recently, using trunk python-glanceclient. Looks like glanceclient v2 needs further stubbing to avoid going out to the network for 'fake_host'

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ERROR: cinder.tests.image.test_glance.TestGlanceClientVersion.test_glance_version_by_arg
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_StringException: Empty attachments:
  pythonlogging:''

Traceback (most recent call last):
  File "/��BUILDDIR��/cinder-2013.2+git201305281542~saucy/cinder/tests/image/test_glance.py", line 576, in test_glance_version_by_arg
    9292, version=2)
  File "/��BUILDDIR��/cinder-2013.2+git201305281542~saucy/cinder/image/glance.py", line 103, in __init__
    use_ssl, version)
  File "/��BUILDDIR��/cinder-2013.2+git201305281542~saucy/cinder/image/glance.py", line 117, in _create_static_client
    self.use_ssl, self.version)
  File "/��BUILDDIR��/cinder-2013.2+git201305281542~saucy/cinder/image/glance.py", line 73, in _create_glance_client
    return glanceclient.Client(str(version), endpoint, **params)
  File "/usr/lib/python2.7/dist-packages/glanceclient/client.py", line 22, in Client
    return client_class(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/glanceclient/v2/client.py", line 40, in __init__
    self._get_member_model())
  File "/usr/lib/python2.7/dist-packages/glanceclient/v2/client.py", line 47, in _get_member_model
    schema = self.schemas.get('member')
  File "/usr/lib/python2.7/dist-packages/glanceclient/v2/schemas.py", line 53, in get
    _, raw_schema = self.http_client.json_request('GET', uri)
  File "/usr/lib/python2.7/dist-packages/glanceclient/common/http.py", line 237, in json_request
    resp, body_iter = self._http_request(url, method, **kwargs)
  File "/usr/lib/python2.7/dist-packages/glanceclient/common/http.py", line 203, in _http_request
    raise exc.InvalidEndpoint(message=message)
InvalidEndpoint: Error finding address for fake_host: [Errno -2] Name or service not known

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ERROR: cinder.tests.image.test_glance.TestGlanceClientVersion.test_glance_version_by_flag
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_StringException: Empty attachments:
  pythonlogging:''

Traceback (most recent call last):
  File "/��BUILDDIR��/cinder-2013.2+git201305281542~saucy/cinder/tests/image/test_glance.py", line 564, in test_glance_version_by_flag
    9292)
  File "/��BUILDDIR��/cinder-2013.2+git201305281542~saucy/cinder/image/glance.py", line 103, in __init__
    use_ssl, version)
  File "/��BUILDDIR��/cinder-2013.2+git201305281542~saucy/cinder/image/glance.py", line 117, in _create_static_client
    self.use_ssl, self.version)
  File "/��BUILDDIR��/cinder-2013.2+git201305281542~saucy/cinder/image/glance.py", line 73, in _create_glance_client
    return glanceclient.Client(str(version), endpoint, **params)
  File "/usr/lib/python2.7/dist-packages/glanceclient/client.py", line 22, in Client
    return client_class(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/glanceclient/v2/client.py", line 40, in __init__
    self._get_member_model())
  File "/usr/lib/python2.7/dist-packages/glanceclient/v2/client.py", line 47, in _get_member_model
    schema = self.schemas.get('member')
  File "/usr/lib/python2.7/dist-packages/glanceclient/v2/schemas.py", line 53, in get
    _, raw_schema = self.http_client.json_request('GET', uri)
  File "/usr/lib/python2.7/dist-packages/glanceclient/common/http.py", line 237, in json_request
    resp, body_iter = self._http_request(url, method, **kwargs)
  File "/usr/lib/python2.7/dist-packages/glanceclient/common/http.py", line 203, in _http_request
    raise exc.InvalidEndpoint(message=message)
InvalidEndpoint: Error finding address for fake_host: [Errno -2] Name or service not known

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