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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "String#clone" do
before :each do
ScratchPad.clear
@obj = StringSpecs::InitializeString.new "string"
end
it "calls #initialize_copy on the new instance" do
clone = @obj.clone
ScratchPad.recorded.should_not == @obj.object_id
ScratchPad.recorded.should == clone.object_id
end
it "copies instance variables" do
clone = @obj.clone
clone.ivar.should == 1
end
it "copies singleton methods" do
def @obj.special() :the_one end
clone = @obj.clone
clone.special.should == :the_one
end
it "copies modules included in the singleton class" do
class << @obj
include StringSpecs::StringModule
end
clone = @obj.clone
clone.repr.should == 1
end
it "copies constants defined in the singleton class" do
class << @obj
CLONE = :clone
end
clone = @obj.clone
(class << clone; CLONE; end).should == :clone
end
it "copies frozen state" do
@obj.freeze.clone.frozen?.should be_true
"".freeze.clone.frozen?.should be_true
end
it "does not modify the original string when changing cloned string" do
orig = "string"[0..100]
clone = orig.clone
orig[0] = 'x'
orig.should == "xtring"
clone.should == "string"
end
end
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