Db Generator Module

class mtf.test_utilities.db_generator.DbGenerator

databex_path

json_path

__init__(databex_cli_path_: str | None = None)

get_dbx_version(dbx_cli_path)

This method aims to get the databex version using a subprocess. Arguments:

dbx_cli_path (str): databex cli path

Returns:

str: it returns the databex version if there’s no problem occurred, else it returns the subprocess error message.

generate_db(dbx_cli_path, nk_folder_path, dbx_version, scripts_version='')

This method uses the databex Cli to generate a db file with the data sources that exist in the NK folder and stores this db file info into the json file. Arguments:

dbx_cli_path (str): databex cli path nk_folder_path (str): NK folder path dbx_version (str): databex version scripts_version (str): scripts sql file version. By default, its value is an empty string

Returns:

bool, str: if the db file was generated without problems, it returns True, generated db file path

else it returns False, “”

detect_db_existence(nk_folder_path, dbx_version, scripts_version='')

This method searches for an existing db file that have the same characteristics ( data sources in NK folder, databex version). Arguments:

nk_folder_path (str): NK folder path dbx_version (str): databex version scripts_version (str): scripts sql file version. By default, its value is an empty string

Returns:

Union[bool, str]: it returns the db file path if there is a db file with the same characteristics, else it returns False.

delete_info_with_no_db_folder(json_file)

This method deletes the db info that has no correspond db folder. Arguments:

json_file (str): db_info.json path, the path to the json file which stores the info the databases.

get_db_at_runtime(nk_folder_path)

This method aims to get an existing db file or to generate a new db file. Arguments:

nk_folder_path (str): NK folder path

Returns:

bool, str: if there is a db file it returns ” True, db file path “, else it returns ” False, “” “

get_db_file_info(db_path)

This method extracts the db file info. Arguments:

db_path (str): db file path

Returns:

dict: the extracted db file info.

check_db_file_info(db_info)

This method checks whether the given info is the same as that extracted from the db file. Arguments:

db_info (dict): db file info

Returns:

bool, dict: if the two info is the same, it returns ” True, None ” else it returns ” False, the extracted info from the db file “.

If a problem occurred during extracting info from the db file it returns ” False, None “.

update_json_db_info(old_info, new_info)

This method updates info in the json file with new info. If the new info is already present in the json file, then the existing info and its corresponding db file will be deleted and the new info added. Arguments:

old_info (dict): the info to be replaced new_info (dict): the info to be added

get_sql_scripts_version(sql_file)

This method aims to get the views scripts version from the sql file path. Arguments:

scripts_path (str): databex_views.sql path

Returns:

str: sql scripts version

get_scripts_version(nk_folder_path)

This method aims to get the views scripts version from the input nk folder path. It searches for the sql file in the nk folder and returns its version, otherwise, if there is no sql file, it returns an empty string Arguments:

nk_folder_path (str): nk folder path

Returns:

str: sql scripts version