def test_requierd_nothing(self):
"""Test to see that if no value has been supplied as either an argument,
environment-variable or setting and the variable is required a ValueError
will be raised"""
variable_name = "my-var"
arguments = argparse.Namespace()
setattr(arguments, variable_name, None)
with self.assertRaises(ValueError):
config._get_config_value(
arguments,
variable_name,
required=True,
settings={},
env={},
)
def test_argument_only(self):
"""Test that a value will be returned even without settings or an
env-variable"""
variable_value = "very important configuration detail"
variable_name = "my-var"
arguments = argparse.Namespace()
setattr(arguments, variable_name, variable_value)
value = config._get_config_value(arguments, variable_name, env={})
self.assertEqual(variable_value, value)
def test_nothing(self):
"""Test to see that if no value has been supplied as either an argument,
environment-variable or setting it returns None"""
variable_name = "my-var"
arguments = argparse.Namespace()
setattr(arguments, variable_name, None)
value = config._get_config_value(
arguments,
variable_name,
settings={},
env={},
)
self.assertEqual(None, value)
def test_settings_only_no_argument(self):
"""Test to see that the value from settings is returned when variable is not
settable from the commandline and no env-variable"""
variable_name = "my-var"
settings_value = "Come on Toshi, you're sooo good"
arguments = argparse.Namespace()
value = config._get_config_value(
arguments,
variable_name,
settings={variable_name: settings_value},
env={},
)
self.assertEqual(settings_value, value)
def test_settings_only(self):
"""Test to see that the value from settings is returned when no argument or
env-variable"""
variable_name = "my-var"
settings_value = "Come on Toshi, you're sooo good"
arguments = argparse.Namespace()
setattr(arguments, variable_name, None)
value = config._get_config_value(
arguments,
variable_name,
settings={variable_name: settings_value},
env={},
)
self.assertEqual(settings_value, value)
def test_env_preferred(self):
"""Test to see that env value is preferred when the variable exists in
settings as well"""
variable_name = "my-var"
env_value = "The best stuff around"
env_name = "CARAMEL_MY_VAR"
arguments = argparse.Namespace()
setattr(arguments, variable_name, None)
value = config._get_config_value(
arguments,
variable_name,
settings={variable_name: "The worstest"},
env={env_name: env_value},
)
self.assertEqual(env_value, value)
def test_different_setting_name_only(self):
"""Test to see that the value from settings is returned when the name of the
settings differs from the varaible name"""
variable_name = "my-var"
setting_name = "something.very.different"
settings_value = "Come on Toshi, you're sooo good"
arguments = argparse.Namespace()
setattr(arguments, variable_name, None)
value = config._get_config_value(
arguments,
variable_name,
setting_name=setting_name,
settings={setting_name: settings_value},
env={},
)
self.assertEqual(settings_value, value)