Hi, are there any examples of testing out the conf...
# ask-communityd
Dolor Oculus
09/23/2020, 6:32 PMHi, are there any examples of testing out the config functionality from unit tests? I tried the below but config.environment yields a BoxKeyError ("Config object has no attribute environment")
Copy code
def test_configuration_works_as_expected(monkeypatch, tmp_path):
config_file = tmp_path / "config.toml"
config_text = """
environment = "prod"
user = "${environments.${environment}.user}"
[environments]
[environments.dev]
user = "test"
[environments.prod]
user = "admin"
"""
with config_file.open("w") as cf:
cf.write(config_text)
monkeypatch.setenv("PREFECT__USER_CONFIG_PATH", str(tmp_path))
assert config.environment == "prod"
assert config.user == "admin"c
Chris White
09/23/2020, 6:33 PM
Hi Dolor - check out Prefect’s own configuration unit tests: https://github.com/PrefectHQ/prefect/blob/master/tests/test_configuration.py
In short, config is loaded at first-import time, so you’ll need to call
prefect.configuration.load_configurationd
Dolor Oculus
09/23/2020, 6:33 PMah, yes that makes sense
Dolor Oculus
09/23/2020, 6:34 PMtrying now!
Dolor Oculus
09/23/2020, 6:39 PMhrm, calling load_configuration explicitly didn't do the trick.
Dolor Oculus
09/23/2020, 6:39 PM Copy code
def test_configuration_works_as_expected(tmp_path):
config_file = tmp_path / "config.toml"
config_text = """
environment = "prod"
user = "${environments.${environment}.user}"
[environments]
[environments.dev]
user = "test"
[environments.prod]
user = "admin"
"""
with config_file.open("w") as cf:
cf.write(config_text)
load_configuration(path=str(config_file))
assert config.environment == "prod"
assert config.user == "admin"Dolor Oculus
09/23/2020, 6:40 PMenvironment isn't in the config object after load_configuration completes.
Dolor Oculus
09/23/2020, 6:41 PMah. it returns the config object.
Dolor Oculus
09/23/2020, 6:41 PM(assumed it was changing the global prefect.config, but this is preferable)
Dolor Oculus
09/23/2020, 6:41 PMlooking good