Update Unit Test Snake

src/test/java/SnakeTest.java

@@ -31,6 +31,12 @@ class SnakeTest {
         Snake snake = new Snake(gridSize);
         snake.reset();
 
+        snake.setDirection(Snake.SnakeDirection.UP);
+        snake.update();
+        ArrayList<Point> bodySegments = snake.getBodySegments();
+        assertEquals(new Point(gridSize / 2, gridSize / 2 - 1), bodySegments.get(0));
+        assertEquals(new Point(gridSize / 2, gridSize / 2), bodySegments.get(1));
+
     }