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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
describe "Kernel#clone" do
before :each do
ScratchPad.clear
@obj = KernelSpecs::Duplicate.new 1, :a
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.one.should == 1
clone.two.should == :a
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 KernelSpecs::DuplicateM
end
clone = @obj.clone
clone.repr.should == "KernelSpecs::Duplicate"
end
it "copies constants defined in the singleton class" do
class << @obj
CLONE = :clone
end
clone = @obj.clone
class << clone
CLONE.should == :clone
end
end
it "raises TypeError when called on nil" do
lambda {
nil.clone
}.should raise_error(TypeError)
end
end
|
