     end
   end
 
-  describe ".handle_call :resume" do
+  describe "GameServer.handle_call(:resume, _, _)" do
     test "returns ok and sets the state to :cont" do
       assert(GameServer.handle_call(:resume, self(), @suspend_state) ==
         {:reply, :ok, @cont_state})

    end
  end

  describe ".step_back" do
    test "does nothing when the history is empty" do
      assert GameServer.step_back(@empty_state) == @empty_state
    end

    end
  end

  describe "GameServer.handle_call(:pause, _, _)" do
    test "suspend's running games" do
      assert(GameServer.handle_call(:pause, self(), @cont_state) ==
       {:reply, :ok, @suspend_state})
