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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 writable" do
->{ @os.age = 42 }.should raise_error( RuntimeError )
end
it "cannot create new fields" do
->{ @os.state = :new }.should raise_error( RuntimeError )
end
it "creates a frozen clone" do
f = @os.clone
f.frozen?.should == true
f.age.should == 70
->{ f.age = 0 }.should raise_error( RuntimeError )
->{ f.state = :newer }.should raise_error( RuntimeError )
end
it "creates an unfrozen dup" do
d = @os.dup
d.frozen?.should == false
d.age.should == 70
d.age = 42
d.age.should == 42
end
end
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