from pathlib import Path

from django.core.checks import Error

from django.core.checks.files import check_setting_file_upload_temp_dir

from django.test import SimpleTestCase

class FilesCheckTests(SimpleTestCase):

    def test_file_upload_temp_dir(self):

        tests = [

            None,

            "",

            Path.cwd(),

            str(Path.cwd()),

        ]

        for setting in tests:

            with self.subTest(setting), self.settings(FILE_UPLOAD_TEMP_DIR=setting):

                self.assertEqual(check_setting_file_upload_temp_dir(None), [])

    def test_file_upload_temp_dir_nonexistent(self):

        for setting in ["nonexistent", Path("nonexistent")]:

            with self.subTest(setting), self.settings(FILE_UPLOAD_TEMP_DIR=setting):

                self.assertEqual(

                    check_setting_file_upload_temp_dir(None),

                    [

                        Error(

                            "The FILE_UPLOAD_TEMP_DIR setting refers to the "

                            "nonexistent directory 'nonexistent'.",

                            id="files.E001",

                        ),

                    ],

                )