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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
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