text: import pytest
  from  fastteradata import *
  
  script_files = ['C:/Users/u374781/Desktop/FastTeradata/dev_files/TEMP/script_CNSLDTD_DRUG_OKLAHOMA_2013_export.txt', \
                  'C:/Users/u374781/Desktop/FastTeradata/dev_files/TEMP/script_CNSLDTD_DRUG_OKLAHOMA_2014_export.txt', \
                  'C:/Users/u374781/Desktop/FastTeradata/dev_files/TEMP/script_CNSLDTD_DRUG_OKLAHOMA_2015_export.txt', \
                  'C:/Users/u374781/Desktop/FastTeradata/dev_files/TEMP/script_CNSLDTD_DRUG_OKLAHOMA_2016_export.txt', \
                  'C:/Users/u374781/Desktop/FastTeradata/dev_files/TEMP/script_CNSLDTD_DRUG_OKLAHOMA_2017_export.txt']
  valid_concat_str_windows = "type C:\\Users\\u374781\\Desktop\\FastTeradata\\dev_files\\TEMP\\data\\CNSLDTD_DRUG_OKLAHOMA_2013_export.txt C:\\Users\\u374781\\Desktop\\FastTeradata\\dev_files\\TEMP\\data\\CNSLDTD_DRUG_OKLAHOMA_2014_export.txt C:\\Users\\u374781\\Desktop\\FastTeradata\\dev_files\\TEMP\\data\\CNSLDTD_DRUG_OKLAHOMA_2015_export.txt C:\\Users\\u374781\\Desktop\\FastTeradata\\dev_files\\TEMP\\data\\CNSLDTD_DRUG_OKLAHOMA_2016_export.txt C:\\Users\\u374781\\Desktop\\FastTeradata\\dev_files\\TEMP\\data\\CNSLDTD_DRUG_OKLAHOMA_2017_export.txt > C:\\Users\\u374781\\Desktop\\FastTeradata\\dev_files\\TEMP\\data\\CNSLDTD_DRUG_OKLAHOMA_export.txt"
  valid_concat_str_linux = "cat C:/Users/u374781/Desktop/FastTeradata/dev_files/TEMP/data/CNSLDTD_DRUG_OKLAHOMA_2013_export.txt C:/Users/u374781/Desktop/FastTeradata/dev_files/TEMP/data/CNSLDTD_DRUG_OKLAHOMA_2014_export.txt C:/Users/u374781/Desktop/FastTeradata/dev_files/TEMP/data/CNSLDTD_DRUG_OKLAHOMA_2015_export.txt C:/Users/u374781/Desktop/FastTeradata/dev_files/TEMP/data/CNSLDTD_DRUG_OKLAHOMA_2016_export.txt C:/Users/u374781/Desktop/FastTeradata/dev_files/TEMP/data/CNSLDTD_DRUG_OKLAHOMA_2017_export.txt > C:/Users/u374781/Desktop/FastTeradata/dev_files/TEMP/data/CNSLDTD_DRUG_OKLAHOMA_export.txt"
  
  valid_rm_cmd_windows = "del "
  valid_rm_cmd_linux = "rm "
  
  valid_data_file_windows = "C:\\Users\\u374781\\Desktop\\FastTeradata\\dev_files\\TEMP\\data\\CNSLDTD_DRUG_OKLAHOMA_export.txt"
  valid_data_file_linux = "C:/Users/u374781/Desktop/FastTeradata/dev_files/TEMP/data/CNSLDTD_DRUG_OKLAHOMA_export.txt"
  
  concat_str, data_files, remove_cmd = combine_partitioned_file(script_files, combine_type="vertical")
  
  
  
  def test_combine_partitioned_files_valid_concat():
      import os
      if os.name == "nt":
          assert valid_concat_str_windows == concat_str
      else:
          assert valid_concat_str_linux == concat_str
  
  def test_combine_partitioned_files_valid_remove():
      import os
      if os.name == "nt":
          assert valid_rm_cmd_windows == remove_cmd
      else:
          assert valid_rm_cmd_linux == remove_cmd
  