A good use case closes the loop between business requirement gathering, software construction, and acceptance testing.
好的用例完成业务需求收集、软件构造和验收测试之间的循环。
2
If TESTING is enabled, the hash entries are printed out in sorted order as the loop executes.
如果TESTING启用，当循环执行时，哈希条目将以排序顺序显示。
3
For example, code that might go into an infinite loop, or otherwise use excessive resources, must be wrapped in testing code that will detect such eventualities.