[Bug 1948934] [NEW] Backported test requires newer ddt than included in test-requirements.txt

[Chris MacNaughton]

Public bug reported:

test-requirements.txt requires ddt>=1.2.1 ; however, 17.2.0 includes a
test backport
(cinder/tests/unit/volume/flows/test_create_volume_flow.py) that uses a
module name that doesn't exist in DDT until 1.4.0
(https://github.com/datadriventests/ddt/commit/6bf51b5d7887049eda580932643a5408ca0f5e3f)

Running the unit tests results in the following traceback:

=========================                                                                                                                   
Failures during discovery                                                                                                                   
=========================                                                                                                                   
--- import errors ---                                                                                                                       
Failed to import test module: cinder.tests.unit.volume.flows.test_create_volume_flow                                                        
Traceback (most recent call last):                                                                                                          
  File "/usr/lib/python3.8/unittest/loader.py", line 436, in _find_test_path                                                                
    module = self._get_module_from_name(name)                                                                                               
  File "/usr/lib/python3.8/unittest/loader.py", line 377, in _get_module_from_name                                                          
    __import__(name)                                                                                                                        
  File "/build/cinder-17.2.0/cinder/tests/unit/volume/flows/test_create_volume_flow.py", line 1258, in <module>                             
    @ddt.ddt(testNameFormat=ddt.TestNameFormat.INDEX_ONLY)                                                                                  
AttributeError: module 'ddt' has no attribute 'TestNameFormat'

** Affects: cinder
     Importance: Undecided
         Status: New

** Affects: cloud-archive
     Importance: Undecided
         Status: New

** Affects: cloud-archive/victoria
     Importance: Undecided
         Status: New

** Also affects: cinder (Ubuntu)
   Importance: Undecided
       Status: New

** No longer affects: cinder (Ubuntu)

** Also affects: cloud-archive
   Importance: Undecided
       Status: New

** Also affects: cloud-archive/victoria
   Importance: Undecided
       Status: New

** Description changed:

  test-requirements.txt requires ddt>=1.2.1 ; however, 17.2.0 includes a
  test backport
  (cinder/tests/unit/volume/flows/test_create_volume_flow.py) that uses a
  module name that doesn't exist in DDT until 1.4.0
  (https://github.com/datadriventests/ddt/commit/6bf51b5d7887049eda580932643a5408ca0f5e3f)
+ 
+ Running the unit tests results in the following traceback:
+ 
+ =========================                                                                                                                   
+ Failures during discovery                                                                                                                   
+ =========================                                                                                                                   
+ --- import errors ---                                                                                                                       
+ Failed to import test module: cinder.tests.unit.volume.flows.test_create_volume_flow                                                        
+ Traceback (most recent call last):                                                                                                          
+   File "/usr/lib/python3.8/unittest/loader.py", line 436, in _find_test_path                                                                
+     module = self._get_module_from_name(name)                                                                                               
+   File "/usr/lib/python3.8/unittest/loader.py", line 377, in _get_module_from_name                                                          
+     __import__(name)                                                                                                                        
+   File "/build/cinder-17.2.0/cinder/tests/unit/volume/flows/test_create_volume_flow.py", line 1258, in <module>                             
+     @ddt.ddt(testNameFormat=ddt.TestNameFormat.INDEX_ONLY)                                                                                  
+ AttributeError: module 'ddt' has no attribute 'TestNameFormat'

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https://bugs.launchpad.net/bugs/1948934

Title:
  Backported test requires newer ddt than included in test-
  requirements.txt

Status in Cinder:
  New
Status in Ubuntu Cloud Archive:
  New
Status in Ubuntu Cloud Archive victoria series:
  New

Bug description:
  test-requirements.txt requires ddt>=1.2.1 ; however, 17.2.0 includes a
  test backport
  (cinder/tests/unit/volume/flows/test_create_volume_flow.py) that uses
  a module name that doesn't exist in DDT until 1.4.0
  (https://github.com/datadriventests/ddt/commit/6bf51b5d7887049eda580932643a5408ca0f5e3f)

  Running the unit tests results in the following traceback:

  =========================                                                                                                                   
  Failures during discovery                                                                                                                   
  =========================                                                                                                                   
  --- import errors ---                                                                                                                       
  Failed to import test module: cinder.tests.unit.volume.flows.test_create_volume_flow                                                        
  Traceback (most recent call last):                                                                                                          
    File "/usr/lib/python3.8/unittest/loader.py", line 436, in _find_test_path                                                                
      module = self._get_module_from_name(name)                                                                                               
    File "/usr/lib/python3.8/unittest/loader.py", line 377, in _get_module_from_name                                                          
      __import__(name)                                                                                                                        
    File "/build/cinder-17.2.0/cinder/tests/unit/volume/flows/test_create_volume_flow.py", line 1258, in <module>                             
      @ddt.ddt(testNameFormat=ddt.TestNameFormat.INDEX_ONLY)                                                                                  
  AttributeError: module 'ddt' has no attribute 'TestNameFormat'

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