'``/VolumeDriver.Mount`` returns an error when asked to mount a
non-existent volume.'

def test_unknown_mount(self):

    name = u'myvol'
    mount_id = ''.join((random.choice('0123456789abcdef') for n in xrange(64)))
    return self.assertResult('POST', '/VolumeDriver.Mount', {u'Name': name, u'ID': unicode(mount_id)}, OK, {u'Err': u'Could    not    find    volume    with    given    name.'})
