import file_utils_operations_lib
import unittest
import os

# Variables
from custom_files import path, custom_path, custom_path_delim, path_delim, delimiter, create_delim_test_file, headers
# Functions
from custom_files import get_list, create_regex_test_file

class TestWithCustomDelimParse(unittest.TestCase):
    def test_parse_no_options(self):
        file = os.popen("cat " + path)
        res: str= file.read()
        file.close()
        ref: list = get_list(res)
        self.assertEqual(file_utils_operations_lib.WithCustomDelims.parse(path=path_delim, delimiter=delimiter), ref)

    def test_parse_remove_empty_string(self):
        file = os.popen("sed '/^$/d' " + path)
        res: str= file.read()
        file.close()
        ref: list = get_list(res)
        self.assertEqual(file_utils_operations_lib.WithCustomDelims.parse(path=path_delim, delimiter=delimiter, remove_empty_string=True), ref)

    def test_parse_keep_when_regex(self):
        file = os.popen("grep \"^La loi\" " + path)
        res: str= file.read()
        file.close()
        ref: list = get_list(res)
        self.assertEqual(file_utils_operations_lib.WithCustomDelims.parse(path=path_delim, delimiter=delimiter, remove_empty_string=False, regex_keep=["^La loi.*"]), ref)

    def test_parse_pass_when_regex(self):
        file = os.popen("grep -v \"^La loi\" " + path)
        res: str= file.read()
        file.close()
        ref: list = get_list(res)
        self.assertEqual(file_utils_operations_lib.WithCustomDelims.parse(path=path_delim, delimiter=delimiter, remove_empty_string=False, regex_pass=["^La loi.*"]), ref)
    
    def test_remove_empty_string_parse_keep_when_regex(self):
        file = os.popen("sed '/^$/d' " + path + " | grep \"^La loi\" ")
        res: str= file.read()
        file.close()
        ref: list = get_list(res)
        self.assertEqual(file_utils_operations_lib.WithCustomDelims.parse(path=path_delim, delimiter=delimiter, remove_empty_string=True, regex_keep=["^La loi.*"]), ref)

    def test_parse_pass_when_regex(self):
        file = os.popen("sed '/^$/d' " + path + " | grep -v \"^La loi\" ")
        res: str= file.read()
        file.close()
        ref: list = get_list(res)
        self.assertEqual(file_utils_operations_lib.WithCustomDelims.parse(path=path_delim, delimiter=delimiter, remove_empty_string=True, regex_pass=["^La loi.*"]), ref)

if __name__ == '__main__':
    create_delim_test_file(path, path_delim)
    create_regex_test_file(custom_path)
    create_delim_test_file(custom_path, custom_path_delim)
    unittest.main()