require_relative '../../spec_helper' require 'ostruct' describe "OpenStruct.new when frozen" do before :each do @os = OpenStruct.new(name: "John Smith", age: 70, pension: 300).freeze end # # method_missing case handled in method_missing_spec.rb # it "is still readable" do @os.age.should eql(70) @os.pension.should eql(300) @os.name.should == "John Smith" end it "is not writeable" do lambda{ @os.age = 42 }.should raise_error( RuntimeError ) end it "cannot create new fields" do lambda{ @os.state = :new }.should raise_error( RuntimeError ) end it "creates a frozen clone" do f = @os.clone f.age.should == 70 lambda{ f.age = 0 }.should raise_error( RuntimeError ) lambda{ f.state = :newer }.should raise_error( RuntimeError ) end it "creates an unfrozen dup" do d = @os.dup d.age.should == 70 d.age = 42 d.age.should == 42 end end