Added df_generic Mock, that is used for mocking a generic Pandas DataFrame
Moved some tests inside Describe_DataFrameWithInfo class since they are related to DataFrameWithInfo methods
Added tests for add_operation and find_operation_in_column methods
Added fixture for creating a DataFrameWithInfo instance with previous FeatureOperation instances (already added to be found)
Added df_generic Mock, that is used for mocking a generic Pandas DataFrame Moved some tests inside Describe_DataFrameWithInfo class since they are related to DataFrameWithInfo methods Added tests for add_operation and find_operation_in_column methods Added fixture for creating a DataFrameWithInfo instance with previous FeatureOperation instances (already added to be found)