JUnit in Action

Chapter 6. Coarse-grained testing with stubs

This chapter covers

• Introducing stubs

• Using an embedded server in place of a real web server

• Unit-testing an HTTP connection sample with stubs

	And yet it moves.
	--Galileo

As you develop your applications, you will find that the code you want to test depends on other classes, which themselves depend on other classes, which depend on the environment. For example, you might be developing an application that uses JDBC to access a database, a J2EE application (one that relies on a J2EE container for security, persistence, and other services), an application that accesses a filesystem, or an application that connects to some resource using HTTP, SOAP, or another protocol.

For applications that depend on an environment, ...