对对象图中的孤立对象进行单元测试
我正在尝试为在遗留数据库之上构建的 JPA 模型编写一些单元测试。我的模型中的一些对象图很大，我想找到一种编写单元测试的方法，以便我可以测试图中的单个对象（即实例化新对象、填充数据、持久化、刷新、比较刷新）对象成员与原始）隔离，而不必完全填充对象图。
我最初的想法是，我可以对被测对象中的任何引用对象使用模拟对象，但我认为这还不够，因为模式的引用完整性不允许模拟对象表示的对象无需填充数据即可插入。
我想我真正想要的是一种实例化被测试对象的方法，然后用我并不真正关心的数据填充对象图的其余部分，但仍然保持模式的引用完整性。
我知道 Java 单元测试有很多选择，包括 DbUnit、EasyMock、Unitils 等，但我不确定应该使用什么组合（或功能）来解决这个问题。有人能指出我正确的方向吗？也请随意批评我解决问题的方法；我可能需要重组它。
I'm trying to write some unit tests for a JPA model that I've built on top of a legacy database. Some of the object graphs in my model are large and I would like to find a way to write the unit tests such that I can test a single object in the graph (i.e. instantiate new object, populate with data, persist, refresh, compare refreshed object members with original) in isolation without having to fully populate the object graph.
My initial thought was that I could use mock objects for any referenced objects in the object under test but I don't think this will be sufficient being that the referential integrity of the schema will not allow the objects that are represented by the mock objects to be inserted without being populated with data.
I guess what I am really looking for is a way to instantiate the object under test and then have the rest of the object graph populated somehow with data that I don't really care about but that still maintains the referential integrity of the schema.
I know there are many options out there for Java unit testing including DbUnit, EasyMock, Unitils etc. but I'm not sure exactly what combination (or features) I should use to solve this problem. Can someone point me in the right direction? Feel free to criticize my approach to the problem as well; I may need to restructure that.
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您可能想查看对象母体或测试数据生成器模式；
另请参阅：
You might want to look at the Object Mother or Test Data Builder patterns;
see also: