THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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One of the advantages of unit testing is that a test case should focus only on the methods of the class under test, in isolation from
related application classes, or APIs provided by any container that the class under test might be installed into at runtime. But, how do you test an application class that has dependencies on such APIs (such as depending on the Servlet API to provide an HttpServletRequest
object representing an incoming HTTP request)?
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