final Entity entity = player.getZone().getEntityAt(1, 0);
assertNotNull(entity);
if (entity instanceof FlowerGrower) {
final FlowerGrower flg = (FlowerGrower) entity;
flg.setToFullGrowth();
flg.onUsed(player);
assertNull(player.getZone().getEntityAt(1, 0));
assertTrue("player has daisies", player.isEquipped("daisies"));
} else {
fail("seed produced non flowergrower");
}