def METHOD_NAME(self):
    """
    GIVEN:
        - Various mime types of a text form
    WHEN:
        - The parser class is instantiated
    THEN:
        - The text based parser is return
    """
    supported_mimes_and_exts = [
        ("text/plain", ".txt"),
        ("text/csv", ".csv"),
    ]
    supported_exts = get_supported_file_extensions()
    for mime_type, ext in supported_mimes_and_exts:
        self.assertIn(ext, supported_exts)
        self.assertEqual(get_default_file_extension(mime_type), ext)
        self.assertIsInstance(
            get_parser_class_for_mime_type(mime_type)(logging_group=None),
            TextDocumentParser,
        )