require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)

ruby_version_is "2.0" do
  describe "Hash#to_h" do
    it "returns self for Hash instances" do
      h = new_hash
      h.to_h.should equal(h)
    end

    describe "when called on a subclass of Hash" do
      before :each do
        @h = HashSpecs::MyHash.new
        @h[:foo] = :bar
      end

      it "returns a new Hash instance" do
        @h.to_h.should be_an_instance_of(Hash)
        @h.to_h.should == @h
        @h[:foo].should == :bar
      end

      it "copies the default" do
        @h.default = 42
        @h.to_h.default.should == 42
        @h[:hello].should == 42
      end

      it "copies the default_proc" do
        @h.default_proc = prc = Proc.new{ |h, k| h[k] = 2 * k }
        @h.to_h.default_proc.should == prc
        @h[42].should == 84
      end
    end
  end
end
