[1LP][RFR] Fixed zone failing test.

[sbulage]

Purpose or Intent

The test is failing with below error:

E       ValueError: not enough values to unpack (expected 1, got 0)

cfme/base/__init__.py:263: ValueError
ValueError
b'not enough values to unpack (expected 1, got 0)'

• This PR will fix the Zone test (test_zone_add_maxlength)

PRT Run

{{pytest: cfme/tests/configure/test_zones.py::test_zone_add_maxlength -svvvv }}

[sbulage]

Here is ipdb output from local test run:

ipdb> zone_res                                                                                                                                                               
<SearchResult for <Collection 'zones' ('Zones')>>
ipdb> zone_res.count                                                                                                                                                         
4
ipdb> zzz = self.appliance.rest_api.collections.zones.find_by(id=self.id)                                                                                                    
ipdb> okaz, = zzz                                                                                                                                                            
*** ValueError: not enough values to unpack (expected 1, got 0)
ipdb> zzz                                                                                                                                                                    
<SearchResult for <Collection 'zones' ('Zones')>>
ipdb> zzz.count                                                                                                                                                              
4
ipdb> zzz = self.appliance.rest_api.collections.zones.find_by(name=self.name)                                                                                                
ipdb> okaz, = zzz                                                                                                                                                            
ipdb> okaz                                                                                                                                                                   
<Entity 'https://<IP>/api/zones/8'>
ipdb>  

[digitronik]

The only concern zone name should be unique
@sbulage is it possible to add zone with same name?

[sbulage]

The only concern zone name should be unique
@sbulage is it possible to add zone with same name?

Like id zone name is unique entity

[jawatts]

waiting on travis