def test_basic_config(self):
os.environ["ENVVAR"] = "Environment Variable Value"
config = Configuration()
self.assertEqual(config("ENVVAR"), "Environment Variable Value")
self.assertEqual(config("ENVFILE"), "Environment File Value")
self.assertEqual(config("INIFILE"), "INI File Value")
self.assertEqual(len(config.configurations),
3) # envvar + .env + settings.ini
def test_basic_config_with_starting_path(self):
os.environ["ENVVAR"] = "Environment Variable Value"
starting_path = os.path.dirname(__file__)
config = Configuration(starting_path=starting_path)
self.assertEqual(config("ENVVAR"), "Environment Variable Value")
self.assertEqual(config("ENVFILE"), "Environment File Value")
self.assertEqual(config("INIFILE"), "INI File Value")
self.assertEqual(len(config.configurations),
3) # envvar + .env + settings.ini
def test_basic_config(env_config, ini_config):
os.environ["ENVVAR"] = "Environment Variable Value"
config = Configuration()
assert repr(config).startswith("Configuration(loaders=[")
assert config("ENVVAR") == "Environment Variable Value"
assert config("ENVFILE") == "Environment File Value"
assert config("INIFILE") == "INI File Value"
assert len(config.loaders) == 2 # Environment + RecursiveSearch
del os.environ["ENVVAR"]
def test_basic_config(self):
os.environ["ENVVAR"] = "Environment Variable Value"
config = Configuration()
self.assertTrue(repr(config).startswith("Configuration(loaders=["))
self.assertEqual(config("ENVVAR"), "Environment Variable Value")
self.assertEqual(config("ENVFILE"), "Environment File Value")
self.assertEqual(config("INIFILE"), "INI File Value")
self.assertEqual(len(config.loaders),
2) # Environment + RecursiveSearch
del os.environ["ENVVAR"]
def test_customized_loaders(self):
os.environ["ENVVAR"] = "Environment Variable Value"
os.environ["ENVVAR2"] = "Foo"
loaders = [EnvFile(self.envfile), Environment(), IniFile(self.inifile)]
config = Configuration(loaders=loaders)
self.assertEqual(config("ENVVAR"), "Must be overrided")
self.assertEqual(config("ENVVAR2"), "Foo")
self.assertEqual(config("ENVFILE"), "Environment File Value")
self.assertEqual(config("INIFILE"), "INI File Value")
self.assertEqual(len(config.loaders), 3)
del os.environ["ENVVAR"]
del os.environ["ENVVAR2"]
def test_customized_loaders(env_config, ini_config):
os.environ["ENVVAR"] = "Environment Variable Value"
os.environ["ENVVAR2"] = "Foo"
loaders = [EnvFile(env_config), Environment(), IniFile(ini_config)]
config = Configuration(loaders=loaders)
assert config("ENVVAR") == "Must be overrided"
assert config("ENVVAR2") == "Foo"
assert config("ENVFILE") == "Environment File Value"
assert config("INIFILE") == "INI File Value"
assert len(config.loaders) == 3
del os.environ["ENVVAR"]
del os.environ["ENVVAR2"]
from decimal import Decimal
from django.conf import settings
from prettyconf.configuration import Configuration
# Tells to prettyconf the .env path
config = Configuration(starting_path=settings.BASE_DIR)
# Defines the exchange_orderbook package name
PACKAGE_NAME = 'exchange_orderbook'
# Tells to django where is the configuration class of this package
default_app_config = PACKAGE_NAME + '.apps.Config'
# Orderbook session config
settings.ORDERBOOK_BASE_CURRENCY_SESSION_NAME = config(
'ORDERBOOK_BASE_CURRENCY_SESSION_NAME', default='orderbook_base_currency')
settings.ORDERBOOK_MARKET_SESSION_NAME = config(
'ORDERBOOK_MARKET_SESSION_NAME', default='orderbook_market')
settings.INTERMEDIATION_PASSIVE_FEE = config('INTERMEDIATION_PASSIVE_FEE',
default=Decimal('0.003'),
cast=Decimal)
settings.INTERMEDIATION_ACTIVE_FEE = config('INTERMEDIATION_ACTIVE_FEE',
default=Decimal('0.005'),
cast=Decimal)
# Orders listing config
settings.ORDERBOOK_TABLE_LIMIT = config('ORDERBOOK_TABLE_LIMIT', default=50)
settings.TRADINGVIEW_THEME = config('TRADINGVIEW_THEME', default='light')
settings.TRADINGVIEW_HEIGHT = config('TRADINGVIEW_HEIGHT',
default=500,
def test_none_as_default_value(self):
config = Configuration()
self.assertIsNone(config("UNKNOWN", default=None))
def test_fail_unknown_config_without_default_value(self):
os.environ["ENVVAR"] = "Environment Variable Value"
config = Configuration()
with self.assertRaises(UnknownConfiguration):
config("UNKNOWN")
def test_fail_invalid_cast_type(self):
os.environ["INTEGER"] = "42"
config = Configuration()
with self.assertRaises(TypeError):
config("INTEGER", cast="not callable")
def test_config_cast_value(self):
os.environ["INTEGER"] = "42"
config = Configuration()
self.assertEqual(config("INTEGER", cast=int), 42)
def test_config_default_values(self):
config = Configuration()
self.assertEqual(config("DEFAULT", default="Default Value"),
"Default Value")
import os
import dj_database_url
from prettyconf.configuration import Configuration
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
config = Configuration(starting_path=BASE_DIR)
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/2.0/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = config('SECRET_KEY')
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = config('DEBUG', default=False, cast=config.boolean)
ALLOWED_HOSTS = config('ALLOWED_HOSTS', cast=config.list)
# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'exchange_core',
def test_none_as_default_value():
config = Configuration()
assert config("UNKNOWN", default=None) is None
def test_config_cast_value():
os.environ["INTEGER"] = "42"
config = Configuration()
assert config("INTEGER", cast=int) == 42
def test_config_default_values():
config = Configuration()
assert config("DEFAULT", default="Default Value") == "Default Value"