[GitHub] [beam] Abacn commented on pull request #25007: Fix PipelineOptionTest.test_display_data

[GitBox <gi...@apache.org>]

Abacn commented on PR #25007:
URL: https://github.com/apache/beam/pull/25007#issuecomment-1382453506

   ref: https://stackoverflow.com/questions/52428679/how-to-remove-classes-from-subclasses
   
   tested this approach should work. Code snippet:
   ```python
   from apache_beam.options.pipeline_options import PipelineOptions
   
   class PipelineOptionTest:
     class UserDefinedOptions(PipelineOptions):
       @classmethod
       def _add_argparse_args(cls, parser):
         parser.add_value_provider_argument('--gcs_location')
   
     @classmethod
     def setUpClass(cls):
       cls.UserDefinedOptions = PipelineOptionTest.UserDefinedOptions
   
     def tearDown(self):
       # Unset the option added in setupClass to avoid interfere with other tests
       del PipelineOptionTest.UserDefinedOptions
       import gc
       gc.collect()
   
     def run(self):
       print(PipelineOptions.__subclasses__())
       x = PipelineOptions().get_all_options()
       print(x)
   
   if __name__ == '__main__':
     test_instance = PipelineOptionTest()
     test_instance.setUpClass()
     test_instance.run()
     test_instance.tearDown()
     test_instance.run()
   
   ```
   
   output:
   >>>
   {'runner': None, ... 's3_region_name': None, 's3_api_version': None, 's3_verify': None, 's3_disable_ssl': False, 'gcs_location': <apache_beam.options.value_provider.RuntimeValueProvider object at 0x1288d3c70>}
   {'runner': None, ... 's3_region_name': None, 's3_api_version': None, 's3_verify': None, 's3_disable_ssl': False}
   >>>
   
   as can be seen the second run there is no longer `--gcs_location`


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