Chapter 4 Generating Hibernate Persistent Objects and JSF Pages

Unit test classes

If there are many persistent classes, it is difficult to test them all to prove that:

• The mappings are correctly defined
• The CRUD (Create, Read, Update, Delete) options work
• The find methods work
• The navigations work

Usually, developers have to develop unit tests or user-interfaces in order to test these objects. PowerDesigner can automate this time-consuming process by using the JUnit framework to generate the unit test classes. PowerDesigner can also generate a JSF Web application to allow you to manually test these objects with your own data.

To generate unit test classes, you need to select the Generate test sources option in the Java code generation window.

Some conditions must be met to unit test for a class:

• Mapping of the class should be defined.
• The class can be instantiated. Unit test classes cannot be generated for abstract classes.
• The class is not a value type.
• The Mutable property is set to true. If Mutable is set to false, the class cannot be deleted.
• The class has no unfulfilled foreign key constraints. If any foreign key is mandatory, the parent class should be reachable (navigable on the parent class side) for testing.

You can run the tests using Eclipse's JUnit integration or Ant.

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