Home Java • Download Jakarta Pitfalls: Time-Saving Solutions for Struts, Ant, by Bill Dudney PDF

Download Jakarta Pitfalls: Time-Saving Solutions for Struts, Ant, by Bill Dudney PDF

By Bill Dudney

While you are operating with Struts, Ant, or computerized unit checking out into your improvement process,then it is a publication for you.This publication seems on the renowned Jakarta purposes asJUnit/Cactus, Struts, and Ant, and exhibits the commonest pitfalls while utilizing those functions. The booklet givesa bankruptcy to Ant and one bankruptcy to JUnit/Cactus and leisure to Struts.Most a part of the publication is on Struts. The authors speak about potentialproblems utilizing activities, ActionForms, and Struts tag library. every one pitfall has its personal part and is formatted similar to the others. You get an outline of every pitfall, an instance of the pitfall in motion, and steps for refactoring it. Corrective ideas are good documented with lots of code samples to teach either prior to and after photographs. this can be a sturdy publication on anti-patterns and refactoruing, excellent spouse of the booklet <> (by Martin Fowler) and <>(this one covers ant and junit/cactus yet now not struts) This ebook is particularly readable, a few might imagine it simply covers visible difficulties, really, it coveres universal pitfalls that almost all humans put out of your mind to flee. it is not a tricky ebook, yet very functional.

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Extra resources for Jakarta Pitfalls: Time-Saving Solutions for Struts, Ant, JUnit, and Cactus (Java Open Source Library)

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Although that approach kind of works on very small projects, it is troublesome on bigger projects because no one knows which tests should succeed and which are expected to fail without looking at the comments in the code. It is far better to catch the exception and fail the test if the exception is not thrown. Code that addresses this issue is shown here. /** * Test the constructor’s protection against null */ public void testNullPointerProtection() throws Exception { try { StringPair busted = new StringPair(null, “Four”); fail(“The constructor should have thrown an exception”); } catch(IllegalStateException e) { // just ignore the exception because we expect it } } We have completed our reworking of the StringPairTest JUnit test to cover all the stated intents of the StringPair class.

Equals(one)); } These two methods have assertions to make sure that the hashCode and equals methods are indeed doing what they are documented to do. The first method checks that the two methods are consistent with each other, and the next method checks that the equals is returning false when it should. The final step in the process is to apply what we did before (that is, assert the intent of the API in the tests) to each of the methods in StringPair that need to be tested. The next method that needs to be tested would be the hashCode method, and there are many statements in the documentation of the class that are important to look at.

The home interface for this bean is very simple: one finder, one 41 42 Chapter 1 create, and one business method. The test should make sure that these aspects of the API are tested as well. The testBean method is more or less testing each aspect of the API for the entity, but the depth of testing is not consistent. The asserts should be grouped into the three basic areas. The next step, after grouping the asserts, is to move them into another test method named after the function or intent they are supposed to be testing.

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