describe :binding_clone, shared: true do
  before :each do
    @b1 = BindingSpecs::Demo.new(99).get_binding
    @b2 = @b1.send(@method)
    @b3 = BindingSpecs::Demo.new(99).get_binding_in_block
    @b4 = @b3.send(@method)
  end

  it "returns a copy of the Binding object" do
    [[@b1, @b2, "a"],
     [@b3, @b4, "a", "b"]].each do |b1, b2, *vars|
      b1.should_not == b2

      eval("@secret", b1).should == eval("@secret", b2)
      eval("square(2)", b1).should == eval("square(2)", b2)
      eval("self.square(2)", b1).should == eval("self.square(2)", b2)
      vars.each do |v|
        eval("#{v}", b1).should == eval("#{v}", b2)
      end
    end
  end

  it "is a shallow copy of the Binding object" do
    [[@b1, @b2, "a"],
     [@b3, @b4, "a", "b"]].each do |b1, b2, *vars|
      vars.each do |v|
        eval("#{v} = false", b1)
        eval("#{v}", b2).should == false
      end
      b1.local_variable_set(:x, 37)
      b2.local_variable_defined?(:x).should == false
    end
  end

  ruby_version_is "3.4" do
    it "copies instance variables" do
      @b1.instance_variable_set(:@ivar, 1)
      cl = @b1.send(@method)
      cl.instance_variables.should == [:@ivar]
    end

    it "copies the finalizer" do
      code = <<-RUBY
        obj = binding

        ObjectSpace.define_finalizer(obj, Proc.new { STDOUT.write "finalized\n" })

        obj.clone

        exit 0
      RUBY

      ruby_exe(code).lines.sort.should == ["finalized\n", "finalized\n"]
    end
  end
end