public void IsTrap() { //Its left and center tiles are traps, but its right tile is not. Assert.IsTrue(_day18.IsTrap("^", "^", ".")); //Its center and right tiles are traps, but its left tile is not. Assert.IsTrue(_day18.IsTrap(".", "^", "^")); // Only its left tile is a trap. Assert.IsTrue(_day18.IsTrap("^", ".", ".")); // Only its left tile is a trap. Assert.IsTrue(_day18.IsTrap(".", ".", "^")); Assert.IsFalse(_day18.IsTrap(".", ".", ".")); Assert.IsFalse(_day18.IsTrap(".", "^", ".")); Assert.IsFalse(_day18.IsTrap("^", "^", "^")); }