for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
from typing import Optional, ClassVar
from lagom import Container
from lagom.environment import Env
class MyEnv(Env):
example_value: Optional[str]
class MyEnvWithPrefix(Env):
PREFIX: ClassVar = "APPNAME"
example_value: str
def test_env_can_be_loaded(container: Container):
assert isinstance(container.resolve(MyEnv), MyEnv)
def test_defined_env_variables_are_loaded_automatically(
monkeypatch, container: Container
):
monkeypatch.setenv("EXAMPLE_VALUE", "from the environment")
env = container.resolve(MyEnv)
assert env.example_value == "from the environment"
def test_envs_can_have_a_prefix(monkeypatch, container: Container):
monkeypatch.setenv("APPNAME_EXAMPLE_VALUE", "from the environment with a prefix")
env = container.resolve(MyEnvWithPrefix)
assert env.example_value == "from the environment with a prefix"
meadsteve /
lagom
