shared_examples_for "conditional unless statements" do

  describe "using the :unless option" do

    describe "passing a symbol" do

      describe "that returns false" do

        before(:each) do
          @response = @luke.as_api_response(:unless_under_thirty)
        end

        it "returns a hash" do
          @response.should be_kind_of(Hash)
        end

        it "returns the correct number of fields" do
          @response.should have(1).keys
        end

        it "won't add the conditional field but all others" do
          @response.keys.should include(:first_name)
          @response.keys.should_not include(:full_name)
        end

        it "the other specified fields have the correct value" do
          @response.values.should include(@luke.first_name)
        end

      end

      describe "that returns nil" do

        before(:each) do
          @response = @luke.as_api_response(:unless_returns_nil)
        end

        it "returns a hash" do
          @response.should be_kind_of(Hash)
        end

        it "returns the correct number of fields" do
          @response.should have(2).keys
        end

        it "won't add the conditional field but all others" do
          @response.keys.should include(:first_name)
          @response.keys.should include(:last_name)
        end

        it "the other specified fields have the correct value" do
          @response.values.should include(@luke.first_name, @luke.last_name)
        end

      end

      describe "that returns true" do

        before(:each) do
          @response = @han.as_api_response(:unless_under_thirty)
        end

        it "returns a hash" do
          @response.should be_kind_of(Hash)
        end

        it "returns the correct number of fields" do
          @response.should have(2).keys
        end

        it "won't add the conditional field but all others" do
          @response.keys.should include(:first_name)
          @response.keys.should include(:last_name)
        end

        it "the other specified fields have the correct value" do
          @response.values.should include(@han.first_name, @han.last_name)
        end

      end

    end

  end

  describe "passing a proc" do

    describe "that returns false" do

      before(:each) do
        @response = @luke.as_api_response(:unless_under_thirty_proc)
      end

      it "returns a hash" do
        @response.should be_kind_of(Hash)
      end

      it "returns the correct number of fields" do
        @response.should have(1).keys
      end

      it "won't add the conditional field but all others" do
        @response.keys.should include(:first_name)
        @response.keys.should_not include(:full_name)
      end

      it "the other specified fields have the correct value" do
        @response.values.should include(@luke.first_name)
      end

    end

    describe "that returns nil" do

      before(:each) do
        @response = @luke.as_api_response(:if_returns_nil_proc)
      end

      it "returns a hash" do
        @response.should be_kind_of(Hash)
      end

      it "returns the correct number of fields" do
        @response.should have(1).keys
      end

      it "won't add the conditional field but all others" do
        @response.keys.should include(:first_name)
        @response.keys.should_not include(:full_name)
      end

      it "the other specified fields have the correct value" do
        @response.values.should include(@luke.first_name)
      end

    end

    describe "that returns true" do

      before(:each) do
        @response = @han.as_api_response(:unless_under_thirty_proc)
      end

      it "returns a hash" do
        @response.should be_kind_of(Hash)
      end

      it "returns the correct number of fields" do
        @response.should have(2).keys
      end

      it "won't add the conditional field but all others" do
        @response.keys.should include(:first_name)
        @response.keys.should include(:last_name)
      end

      it "the other specified fields have the correct value" do
        @response.values.should include(@han.first_name, @han.last_name)
      end

    end

  end

end