def test_load_with_existing_env_vars_from_args(self):
env = Env('ABC')
os.environ['ABC'] = '456'
env.load()
assert env.data['ABC'] == '456'
del os.environ['ABC']
def test_load_with_existing_env_vars(self):
env = Env(keys=['ABC'])
os.environ['ABC'] = '456'
env.load()
assert env.data['ABC'] == '456'
del os.environ['ABC']
def test_load_with_existing_env_vars_from_args(self):
env = Env('ABC')
os.environ['ABC'] = '456'
env.load()
assert env.data['ABC'] == '456'
del os.environ['ABC']
def test_load_with_existing_env_vars_from_kwargs(self):
env = Env(**{'src_abc': 'dest_abc'})
os.environ['SRC_ABC'] = '456'
env.load()
assert 'SRC_ABC' not in env.data
assert 'DEST_ABC' in env.data
assert env.data['DEST_ABC'] == '456'
del os.environ['SRC_ABC']
def test_load_with_existing_env_vars_from_kwargs(self):
env = Env(**{'src_abc': 'dest_abc'})
os.environ['SRC_ABC'] = '456'
env.load()
assert 'SRC_ABC' not in env.data
assert 'DEST_ABC' in env.data
assert env.data['DEST_ABC'] == '456'
del os.environ['SRC_ABC']
def test_load_with_non_existing_env_vars(self):
env = Env(keys=["abc", "easy as"])
os.environ["ABC"] = "123"
env.load()
assert "ABC" in env.data
assert "EASY_AS" not in env.data
assert env.data["ABC"] == "123"
del os.environ['ABC']
def test_load_with_provided_overriding_keys(self):
env = Env(keys=["abc"])
os.environ["ABC"] = "123"
os.environ["EASY_AS"] = "do re mi"
env.load(keys=["easy as"])
assert "ABC" in env.data
assert "EASY_AS" in env.data
assert env.data["ABC"] == "123"
assert env.data["EASY_AS"] == "do re mi"
def test_load_with_non_existing_env_vars_from_args(self):
env = Env(**{"src_abc": "dest_abc", "src_easy_as": "dest_easy_as"})
os.environ["SRC_ABC"] = "123"
env.load()
assert "SRC_ABC" not in env.data
assert "DEST_ABC" in env.data
assert env.data["DEST_ABC"] == "123"
assert "SRC_EASY_AS" not in env.data
assert "DEST_EASY_AS" not in env.data
del os.environ['SRC_ABC']
def test_load_with_non_existing_env_vars_from_args(self):
env = Env(**{"src_abc": "dest_abc", "src_easy_as": "dest_easy_as"})
os.environ["SRC_ABC"] = "123"
env.load()
assert "SRC_ABC" not in env.data
assert "DEST_ABC" in env.data
assert env.data["DEST_ABC"] == "123"
assert "SRC_EASY_AS" not in env.data
assert "DEST_EASY_AS" not in env.data
del os.environ['SRC_ABC']
def test_init_with_kwargs_sets_mapping_attribute(self):
env = Env(**{"src_abc": "dest_abc", "src_easy_as": "dest_easy_as"})
assert env.mapping == {
"SRC_ABC": "DEST_ABC",
"SRC_EASY_AS": "DEST_EASY_AS"
}
def test_register_a_non_special_adapter_with_empty_adapters(self):
env_adapter = Env()
config = Config()
config.register(env_adapter)
assert len(config.adapters) == 1
assert config.adapters[0] == env_adapter
def test_adapters_setter_raises_if_defaults_is_not_first(self):
defaults_adapter = Defaults({"abc": "123"})
env_adapter = Env()
config = Config()
with pytest.raises(ValueError):
# defaults_adapter should always be first
config.adapters = [env_adapter, defaults_adapter]
def test_adapters_setter_raises_if_overrides_is_not_last(self):
overrides_adapter = Overrides({"abc": "123"})
env_adapter = Env()
config = Config()
with pytest.raises(ValueError):
# overrides_adapter should always be last
config.adapters = [overrides_adapter, env_adapter]
def test_register_a_second_defaults_overrides_existing_one(self):
env_adapter = Env()
defaults_adapter = Defaults({"abc": "123"})
config = Config()
config.adapters = [defaults_adapter, env_adapter]
new_defaults = Defaults({"easy as": "do re mi"})
config.register(new_defaults)
assert config.defaults == new_defaults
def test_register_a_second_defaults_raises(self):
env_adapter = Env()
defaults_adapter = Defaults({"abc": "123"})
config = Config()
config.adapters = [defaults_adapter, env_adapter]
with pytest.raises(ValueError):
config.register(defaults_adapter)
def test_register_a_second_overrides_replaces_existing_one(self):
env_adapter = Env()
overrides_adapter = Overrides({"abc": "123"})
config = Config()
config.adapters = [env_adapter, overrides_adapter]
new_overrides = Overrides({"easy as": "do re mi"})
config.register(new_overrides)
assert config.overrides == new_overrides
def test_register_a_second_overrides_raises(self):
env_adapter = Env()
overrides_adapter = Overrides({"abc": "123"})
config = Config()
config.adapters = [env_adapter]
config.register(overrides_adapter)
with pytest.raises(ValueError):
config.register(overrides_adapter)
def test_register_sets_defaults_adapter_as_first_with_existing_adapters(
self):
env_adapter = Env()
defaults_adapter = Defaults({"abc": "123"})
config = Config()
config.adapters = [env_adapter]
config.register(defaults_adapter)
assert config.adapters[0] == defaults_adapter
assert config.adapters[1] == env_adapter
def test_load_passes_its_keys_to_env_loading(self):
env = Env("USER", "PATH")
config = Config({"PATH": None})
config.register(env)
config.load()
assert "USER" in config
assert "PATH" in config
assert config["USER"] == os.environ["USER"]
assert config["PATH"] == os.environ["PATH"]
def test_register_non_special_adapters_protects_order(self):
env_adapter = Env()
file_adapter = File('/tmp/test')
config = Config()
config.register(env_adapter)
config.register(file_adapter)
assert len(config.adapters) == 2
assert config.adapters[0] == env_adapter
assert config.adapters[1] == file_adapter
def test_register_sets_overrides_adapter_as_last_with_existing_adapters(
self):
env_adapter = Env()
overrides_adapter = Overrides({"abc": "123"})
config = Config()
config.adapters = [env_adapter]
config.register(overrides_adapter)
assert config.adapters[0] == env_adapter
assert config.adapters[1] == overrides_adapter
def test_register_multiple_adapters(self):
config = Config()
defaults_adapter = Defaults()
env_adapter = Env()
file_adapter = File('/tmp/test')
config.register(defaults_adapter, env_adapter, file_adapter)
assert len(config.adapters) == 3
assert config.adapters[0] == defaults_adapter
assert config.adapters[1] == env_adapter
assert config.adapters[2] == file_adapter
def test_register_non_special_adapters_with_overrides(self):
env_adapter = Env()
overrides_adapter = Overrides()
file_adapter = File('/tmp/test')
config = Config()
config.adapters = [overrides_adapter]
config.register(env_adapter)
config.register(file_adapter)
assert len(config.adapters) == 3
assert config.adapters[0] == env_adapter
assert config.adapters[1] == file_adapter
assert config.adapters[2] == overrides_adapter
def test_load_method_forces_subconfig_adapters_loading(self):
main_config = Config()
subconfig = Config()
subconfig_env_adapter = Env("TEST")
subconfig.register(subconfig_env_adapter)
main_config.add_subconfig('test_subconfig', subconfig)
os.environ["TEST"] = "test"
assert hasattr(main_config, 'test_subconfig')
assert main_config.test_subconfig == subconfig
assert not main_config.test_subconfig
main_config.load()
assert 'TEST' in main_config.test_subconfig
assert main_config.test_subconfig['TEST'] == 'test'
del os.environ["TEST"]
def test_init_formats_input_keys(self):
env = Env(keys=["abc"])
assert env.keys == ["ABC"]
def test_init_with_args_sets_keys_attribute(self):
env = Env("abc", "123", "easy_as")
assert env.keys == ['ABC', '123', 'EASY_AS']
assert env.mapping == {}
def test_adapters_setter_raises_if_a_member_has_invalid_type(self):
config = Config()
with pytest.raises(TypeError):
config.adapters = [Env(), "abc 123"]
