diff options
Diffstat (limited to 'spec/ruby/core/binding/dup_spec.rb')
-rw-r--r-- | spec/ruby/core/binding/dup_spec.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/spec/ruby/core/binding/dup_spec.rb b/spec/ruby/core/binding/dup_spec.rb index 43968213c8..4eff66bd9a 100644 --- a/spec/ruby/core/binding/dup_spec.rb +++ b/spec/ruby/core/binding/dup_spec.rb @@ -4,4 +4,27 @@ 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 |