各种Unit Test

HttpUnit: A test framework that could be embedded in JUnit tests to perform automated web
site testing.
JUnitPerf: JUnit test decorators to perform scalability and performance testing.
Mock Objects: Allows testing of code that accesses resources such as database connections
and servlet containers without the need of the actual resources.
Cactus: In-container unit testing. Covered in detail in chapter 12.
DBUnit: Sets up databases in a known state for repeatable DB testing