🔒 How to create app config? My constants are too constant.

[thorn tree]

import os
from dotenv import load_dotenv

load_dotenv(override=True)

FOCUSTUI_DEBUG: bool = os.getenv("FOCUSTUI_DEBUG") == "True"
_minute = os.getenv("FOCUSTUI_DEBUG_MINUTE")
is_custom = FOCUSTUI_DEBUG and _minute is not None
MINUTE: int = int(_minute) if is_custom else 60

This part of the constants from my app. As you see, this data can be changed by .env file. When I am working on an app, I set, for example, debug to True.

I want my unit tests to work against normal mode (debug=False). But when I import data from constants, debug is set already set to True, so monkeypatch.setenv("FOCUSTUI_DEBUG", "False") does not work.

How do design my app to make it easy to test and easy to write?

Or I just should manually set .env debug to True?

[true canopy]

@thorn tree

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[quaint turtle]

the easiest way is just putting the code that depends on environment variables inside of functions that are ran after you have enough time to modify them via monkeypatching

(aka no global variables)
alternatively, set the environment variables normally before running pytest

[thorn tree]

do you mean something like middleware, but just on PyTest initialization?

[quaint turtle]

> MY_ENV=SOMETHING py -m pytest

or a command line script with a bunch of sets instead of running it directly

[thorn tree]

Is it a bad practices to set those global? Or I just should set those depended ones as functions return the same value but by design value may change overtime.

btw I love your avatar it is so cute 🤗

[quaint turtle]

not sure, personally I would just make some helper function instead of using a variable

like just ```py
def is_debug() -> bool:
return os.getenv("FOCUSTUI_DEBUG") == "True"

from config import is_debug

instead of

if FOCUSTUI_DEBUG:
...

just

if is_debug():
...

instead of a MINUTE global, some get_duration() function

[thorn tree]

I did it because in Djnago you have this settings with many variables

[quaint turtle]

yeah idk, you may want to try asking in #unit-testing too

[thorn tree]

But in my code there is logic which is you have variables that are used in few parts of code. Debug is only to allow checks of values like here - MINUTE: int = int(_minute) if is_custom else 60

[thorn tree]

that a good idea

[quaint turtle]

in some cases, you could also mock the variable where it's imported to instead of mocking its origin

[thorn tree]

Can you tell me where did you found your avatar or you have made it?

[quaint turtle]

created with ChatGPT + Dalle3

[thorn tree]

wow, I am surprised

[thorn tree]

I have to ask there coz it is quite complex question

but thanks for your insights

[true canopy]

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