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module Tins
module Expose
# Expose any (private/protected) method or internal state of this object
# returning the result for specing purposes.
#
# @param method_name [ Symbol | String ] name of the method
# (shortcut for reader methods).
# @param block [ Proc ] any private/protected methods of the object can be
# called in this block.
#
# @return [ Object ] result of the method or block call
def expose(method_name = nil, *args, &block)
if block
instance_eval(&block)
elsif method_name.nil?
methods = private_methods(true) + protected_methods(true)
o = dup
o.singleton_class.class_eval do
public(*methods)
end
o
elsif method_name
__send__(method_name, *args)
end
end
end
end
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