ctx.accesses
一个 getter,用于返回用于追踪对模拟属性的访问(获取/设置)的内部数组的副本。数组中的每个条目都是一个包含以下属性的对象:
【A getter that returns a copy of the internal array used to track accesses (get/set) to the mocked property. Each entry in the array is an object with the following properties:】