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

[Sofia Enriquez]

** Changed in: cinder
   Importance: Undecided => Medium

** Tags added: ddt unittest

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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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