python-dependency-injector/tests/typing/configuration.py

from pathlib import Path
from dependency_injector import providers


# Test 1: to check the getattr
config1 = providers.Configuration()
provider1 = providers.Factory(dict, a=config1.a)

# Test 2: to check the from_*() method
config2 = providers.Configuration()
config2.from_dict({})
config2.from_ini("config.ini")
config2.from_ini(Path("config.ini"))

config2.from_yaml("config.yml")
config2.from_yaml(Path("config.yml"))

config2.from_env("ENV", "default")
config2.from_env("ENV", as_=int, default=123)
config2.from_env("ENV", as_=float, required=True)
config2.from_env("ENV", as_=lambda env: str(env))

# Test 3: to check as_*() methods
config3 = providers.Configuration()
int3: providers.Callable[int] = config3.option.as_int()
float3: providers.Callable[float] = config3.option.as_float()
int3_custom: providers.Callable[int] = config3.option.as_(int)

# Test 4: to check required() method
config4 = providers.Configuration()
option4: providers.ConfigurationOption = config4.option.required()