+
+t_of_undefined(_Cfg) ->
+ Foo = foo,
+ Bar = bar,
+ Baz = baz,
+ {some, Foo} = hope_option:of_undefined(Foo),
+ {some, Bar} = hope_option:of_undefined(Bar),
+ {some, Baz} = hope_option:of_undefined(Baz),
+ none = hope_option:of_undefined(undefined).