require File.expand_path(File.dirname(__FILE__) + '/../../spec_helper')

describe Hamster::Hash do

  [:put, :[]=].each do |method|

    describe "##{method}" do

      before do
        @original = Hamster.hash("A" => "aye", "B" => "bee", "C" => "see")
      end

      describe "with a unique key" do

        before do
          @result = @original.send(method, "D", "dee")
        end

        it "preserves the original" do
          @original.should == Hamster.hash("A" => "aye", "B" => "bee", "C" => "see")
        end

        it "returns a copy with the superset of key/value pairs" do
          @result.should == Hamster.hash("A" => "aye", "B" => "bee", "C" => "see", "D" => "dee")
        end

      end

      describe "with a duplicate key" do

        before do
          @result = @original.send(method, "C", "sea")
        end

        it "preserves the original" do
          @original.should == Hamster.hash("A" => "aye", "B" => "bee", "C" => "see")
        end

        it "returns a copy with the superset of key/value pairs" do
          @result.should == Hamster.hash("A" => "aye", "B" => "bee", "C" => "sea")
        end

      end

    end

  end

end