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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
require_relative 'shared/clone'
describe "Binding#dup" do
it_behaves_like :binding_clone, :dup
it "resets frozen status" do
bind = binding.freeze
bind.frozen?.should == true
bind.dup.frozen?.should == false
end
it "retains original binding variables but the list is distinct" do
bind1 = binding
eval "a = 1", bind1
bind2 = bind1.dup
eval("a = 2", bind2)
eval("a", bind1).should == 2
eval("a", bind2).should == 2
eval("b = 2", bind2)
-> { eval("b", bind1) }.should raise_error(NameError)
eval("b", bind2).should == 2
bind1.local_variables.sort.should == [:a, :bind1, :bind2]
bind2.local_variables.sort.should == [:a, :b, :bind1, :bind2]
end
end
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