public void TestApplySeatingPartTwo()
{
var state0 = LoadInput("input_2_state_0.txt");
var state1 = LoadInput("input_2_state_1.txt");
var state2 = LoadInput("input_2_state_2.txt");
var state3 = LoadInput("input_2_state_3.txt");
var state4 = LoadInput("input_2_state_4.txt");
var state5 = LoadInput("input_2_state_5.txt");
var state6 = LoadInput("input_2_state_6.txt");
var waitingArea = new WaitingArea(state0);
waitingArea.State.ShouldBe(state0);
waitingArea.ApplySeatingPartTwo(); // Round 1
waitingArea.State.ShouldBe(state1);
waitingArea.ApplySeatingPartTwo(); // Round 2
waitingArea.State.ShouldBe(state2);
waitingArea.ApplySeatingPartTwo(); // Round 3
waitingArea.State.ShouldBe(state3);
waitingArea.ApplySeatingPartTwo(); // Round 4
waitingArea.State.ShouldBe(state4);
waitingArea.ApplySeatingPartTwo(); // Round 5
waitingArea.State.ShouldBe(state5);
waitingArea.ApplySeatingPartTwo(); // Round 6
waitingArea.State.ShouldBe(state6);
waitingArea.ApplySeatingPartTwo(); // Round 7 (should be no change)
waitingArea.State.ShouldBe(state6);
waitingArea.SeatsTaken.ShouldBe(26);
}