### Question:
Grid implements Entity { public GameSession getSession() { return session; } Grid(GameSession session, int width, int height); int getWidth(); int getHeight(); GameSession getSession(); void place(int x, int y, Tileable tileable); Tile get(int x, int y); boolean onGrid(int x, int y);  }### Answer:
@Test public void getSession() { Grid grid = new Grid(session, 1, 1); assertThat(grid.getSession()).isEqualTo(session); }