refactor: split casino.go, dedup helpers, remove audit docs

1 files changed, 11 insertions, 0 deletions

diff --git a/internal/player/roomset_test.go b/internal/player/roomset_test.go
index 38bd993..94b1714 100644
--- a/internal/player/roomset_test.go
+++ b/internal/player/roomset_test.go
@@ -143,3 +143,14 @@ func TestRoomSetRejectsOutOfRangeDelta(t *testing.T) {
 		t.Fatal("expected error for out-of-range delta")
 	}
 }
+
+func TestRoomSetAddRejectsOutOfRange(t *testing.T) {
+	rs := NewRoomSetFrom(roomSetMaxID)
+	if !rs.Has(roomSetMaxID) {
+		t.Fatal("roomSetMaxID itself should be accepted")
+	}
+	rs.Add(roomSetMaxID + 1)
+	if rs.Has(roomSetMaxID + 1) {
+		t.Fatal("out-of-range room ID was accepted")
+	}
+}