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The logical test PersistenceLayer includes all test classes and test methods found in the package auction.test.dbunit, if their group name starts with integration-hibernate. This is also true for any TestNG configuration methods (those marked with @BeforeClass and so on), so you need to place any classes (the superclass, too) with configuration methods in the same package and add them to the same group. To run this test suite with Ant, replace the name of the XML suite descriptor in the Ant target you wrote in section 16.5.2, Creating and running a test suite. We ve only scratched the surface of TestNG and DBUnit in the previous examples. There are many more useful options; for example, you can parameterize test methods in TestNG with arbitrary settings in your suite descriptor. You can create

Passwords should be eight characters or more. Passwords should be complex. Users should be forced to change passwords after 30 days.

used to perform the target computer installation. This package does not provide access to user state data.

Users should be able to back up but not restore their own computers. Users should be able to install device drivers for new devices. The Administrator account on each computer should be renamed to CoffeeAdmin. The Guest account should be disabled. Computers should not display the last user name used to log on to a computer on the Welcome screen.

a test assembly that starts an EJB 3.0 container server (see the code in chapter 2, section 2.2.3, Running the application and the EJB3IntegrationTest superclass in the CaveatEmptor download) and then test your EJB layers. We recommend the documentation of TestNG and DBUnit, respectively, as you start building out your testing environment from the base classes and with the strategies we ve shown. You may wonder how you can test mappings and queries, because we ve only discussed testing of object-state transitions. First, you can test mappings easily by setting hibernate.hbm2ddl.auto to validate. Hibernate then verifies the mappings by checking them against database catalog metadata when the SessionFactory is built. Second, testing queries is the same as testing object state transitions: Write integration test methods, and assert the state of the returned data. Finally, we consider load and stress testing, and which aspects you have to focus on if you want to test the performance of your system.

1. Although you could log on to each computer in person and use Local Security Policy to configure the settings for the computer, what would be an easier way to configure all computers in the workgroup

2. List the specific policies you should configure to meet the requirements listed and how you would configure them. You should configure the following policies:

One of the most difficult things in enterprise application development is guaranteeing performance and scalability of an application. Let s define these terms first. Performance is usually considered to be the reaction time of a request/responsebased application. If you click a button, you expect a response in half a second. Or, depending on the use case, you expect that a particular event (or batch operation) can be executed in a reasonable time frame. Naturally, reasonable depends on the case and usage patterns of some application functionality. Scalability is the ability of a system to perform reasonably under higher load. Imagine that instead of 1 person clicking 1 button, 5,000 people click a lot of buttons. The better the scalability of a system, the more concurrent users you can pack on it without performance degradation. We already had much to say about performance. Creating a system that performs well is, in our opinion, synonymous to creating a Hibernate/database application that has no obvious performance bottlenecks. A performance bottleneck can be anything you consider a programming mistake or bad design for example, the wrong fetching strategy, a wrong query, or bad handling of the Session and persistence context. Testing a system for reasonable performance is usually part of the acceptance tests. In practice, performance testing is often done by a dedicated group of end user testers in a lab environment, or with a closed user group in real-world conditions. Pure automated performance tests are rare.

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