def METHOD_NAME(
    self,
    explictFromTo=False):
    # create test file of size 64MB
    filename = "test_blob_d_64MB_file.txt"
    file_path = util.create_test_file(filename, 64*1024*1024)
    # Upload the file using Azcopy
    cmd = util.Command("copy").add_arguments(file_path).add_arguments(util.test_bfs_account_url). \
        add_flags("log-level", "Info")
    util.process_oauth_command(
        cmd,
        "LocalBlobFS" if explictFromTo else "")
    result = cmd.execute_azcopy_copy_command()
    self.assertTrue(result)
    # Validate the file uploaded
    fileUrl = util.test_bfs_account_url + filename
    result = util.Command("testBlobFS").add_arguments(file_path).add_arguments(fileUrl).execute_azcopy_verify()
    self.assertTrue(result)
    # delete the file locally
    try:
        os.remove(file_path)
    except:
        self.fail('error deleting the file ' + file_path)
    # download the file using azcopy
    cmd = util.Command("copy").add_arguments(fileUrl).add_arguments(util.test_directory_path). \
        add_flags("log-level", "Info")
    util.process_oauth_command(
        cmd,
        "BlobFSLocal" if explictFromTo else "")
    result = cmd.execute_azcopy_copy_command()
    self.assertTrue(result)
    # validate the downloaded file
    result = util.Command("testBlobFS").add_arguments(file_path).add_arguments(fileUrl).execute_azcopy_verify()
    self.assertTrue(result)