Pytest raises exception but assert doesn't catch it, although they are the same type and same value

I am writing test for this function:

def get_current_active_user(current_user: models.User = Depends(get_current_user)) -> models.User:
    if not current_user.is_active:
        raise HTTPException(status_code=400, detail="Inactive user")
    return current_user

I am trying to check if the arguments of HTTPException are right. That is my test:

def test_get_current_active_user_not_active():
    user: models.User = UserFactory()
    user.is_active = False

    with pytest.raises(HTTPException) as exc_info:
        get_current_active_user(current_user=user)
    
    assert exc_info.value == HTTPException(status_code=400, detail='Inactive user')

For some reason, this assert is never true, although the values are the same. Debugging session:

>exc_info.value
HTTPException(status_code=400, detail='Inactive user')

>type(exc_info.value)
<class 'fastapi.exceptions.HTTPException'>

>type(HTTPException(status_code=400, detail='Inactive user'))
<class 'fastapi.exceptions.HTTPException'>

>exc_info.value == HTTPException(status_code=400, detail='Inactive user')
False

>str(exc_info.value) == "HTTPException(status_code=400, detail='Inactive user')"
False

Any ideas why this is happening are greatly appreciated.

>Solution :

== in python might just compare the objects’s ids, which is why the equality fails here.

Maybe you should try something like:

assert exc_info.value.status_code == 400
assert exc_info.detail == 'Inactive user'