describe :array_clone, shared: true do
  it "returns an Array or a subclass instance" do
    [].send(@method).should.instance_of?(Array)
    ArraySpecs::MyArray[1, 2].send(@method).should.instance_of?(ArraySpecs::MyArray)
  end

  it "produces a shallow copy where the references are directly copied" do
    a = [mock('1'), mock('2')]
    b = a.send @method
    b.first.should.equal? a.first
    b.last.should.equal? a.last
  end

  it "creates a new array containing all elements or the original" do
    a = [1, 2, 3, 4]
    b = a.send @method
    b.should == a
    b.__id__.should_not == a.__id__
  end
end