     end
   end
 
-  describe ".handle_call :next" do
+  describe "GameServer.handle_call(:next, _, _)" do
     test "executes the reducer once if the game is not ended" do
       state = %State{world: 1, reducer: &(&1+1)}
 

    end
  end

  describe ".handle_call :prev" do
    test "does nothing when the server is stopped" do
      assert(GameServer.handle_call(:prev, self(), @halt_state) ==
        {:reply, :ok, @halt_state})

    end
  end

  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})
