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Perl Testing: A Developer's Notebook: A Developer's Notebook par [Langworth, Ian, Chromatic]
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Longueur : 208 pages Langue : Anglais

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Descriptions du produit

Présentation de l'éditeur

Is there any sexier topic in software development than software testing? That is, besides game programming, 3D graphics, audio, high-performance clustering, cool websites, et cetera? Okay, so software testing is low on the list. And that's unfortunate, because good software testing can increase your productivity, improve your designs, raise your quality, ease your maintenance burdens, and help to satisfy your customers, coworkers, and managers.

Perl has a strong history of automated tests. A very early release of Perl 1.0 included a comprehensive test suite, and it's only improved from there. Learning how Perl's test tools work and how to put them together to solve all sorts of previously intractable problems can make you a better programmer in general. Besides, it's easy to use the Perl tools described to handle all sorts of testing problems that you may encounter, even in other languages.

Like all titles in O'Reilly's Developer's Notebook series, this "all lab, no lecture" book skips the boring prose and focuses instead on a series of exercises that speak to you instead of at you.

Perl Testing: A Developer's Notebook will help you dive right in and:

  • Write basic Perl tests with ease and interpret the results
  • Apply special techniques and modules to improve your tests
  • Bundle test suites along with projects
  • Test databases and their data
  • Test websites and web projects
  • Use the "Test Anything Protocol" which tests projects written in languages other than Perl

With today's increased workloads and short development cycles, unit tests are more vital to building robust, high-quality software than ever before. Once mastered, these lessons will help you ensure low-level code correctness, reduce software development cycle time, and ease maintenance burdens.

You don't have to be a die-hard free and open source software developer who lives, breathes, and dreams Perl to use this book. You just have to want to do your job a little bit better.

Détails sur le produit

  • Format : Format Kindle
  • Taille du fichier : 680 KB
  • Nombre de pages de l'édition imprimée : 202 pages
  • Utilisation simultanée de l'appareil : Illimité
  • Editeur : O'Reilly Media; Édition : 1 (14 juillet 2005)
  • Vendu par : Amazon Media EU S.à r.l.
  • Langue : Anglais
  • ASIN: B005EI86EK
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Commentaires client les plus utiles sur (beta) 4.0 étoiles sur 5 21 commentaires
9 internautes sur 9 ont trouvé ce commentaire utile 
4.0 étoiles sur 5 no nonsense introduction to the imporant stuff 5 août 2007
Par Ricardo Signes - Publié sur
Format: Broché
I was initially not excited by O'Reilly's "Developer's Notebook" line of books. A lot of things conspired to make me turn up my nose. The design looked too gimmicky, the first few books turned me off (I don't remember specifics, but it was something like Excel Macros, Java Networking, and some other crap), and something inside me just felt like it was a dumb idea. I don't know why: I used to use similar references all the time, back when the Linux HOWTOs weren't useless. Anyway, when I heard that the new Perl testing book was going to be a notebook, I sort of groaned, but I still made sure I got it as soon as it was out and dug in.

Testing is Really Important. It serves as a secondary form of documentation, it makes it easier to add new features, it makes it easier to fix broken features, and it makes your replacement's job a lot easier when you win the lottery and retire early. It's a sad fact that plenty of people don't test their code, and that many of those who want to just don't know how. PTDN is a crash course for those people. It gets right to the point: page one says, roughly, "You know you should be testing, so here's how you do it. First, run the CPAN shell and install Test::Simple."

The rest of the book sticks to that no-crap attitude. "You want to do X. Here's what you do, and here's what happens when you do it." There isn't much of "why should I do this" or "how does this work on the inside" and that's just right. The book isn't there to show you how Devel::Cover works, or to explain the ideas behind agile development. It's there to help you do the job you know you need to do. It's like an old-style HOWTO extracted back one level of abstraction, or a set of nice fat articles on a series of related topics.

In fact, I think it's safe to say that a more traditional technical book on this subject might have been just the sort of overblown self-important thing that would've kept more people scared of and away from testing. Instead, it's a great crash course for the uninitiated.

For the initiated, I'm not sure how useful it would be. I must say that I didn't find many new or esoteric things in PTDN, but I don't think I'm its target audience. I already use and love coverage reports, I aim for full coverage on my code, and I like keeping my eye on the Test:: namespace for neat new tricks. If I were to hire a lackey, though, who wasn't already familiar with testing, this book would be high up on his must-read list. Knowing how to test your software is vitally important, and this book provides a very short path to that knowledge.
14 internautes sur 16 ont trouvé ce commentaire utile 
5.0 étoiles sur 5 Finally a Practical Guide to Perl Testing 10 septembre 2005
Par Mike Schilli - Publié sur
Format: Broché
You'll read this book cover-to-cover. It's easy,

it's concise, it's fun and it will change your

testing attitude. You'll be inspired immediately,

roll up your sleeves and get started.

Sure, Ian Langworth and chromatic could have

written a 700-page reference tome on all the

different testing modules available and how to use

every single feature. Instead, they just show you

what expert perl programmers do when they're

testing their work.

They're getting you 90% there. If you need more,

it's easy to pick up the details from the manual

pages of the various testing modules, most of

which come with excellent documentation. The

value of this book is that it shows you what's

available and covers an astonishing amount of

different use cases.

O'Reilly's "Developer's Notebook" style is

somewhat unusual, very FAQ-like. The only gripe I

have with this series are recurring headlines like

"How do I do that?" and "What just happened?",

which I'd rather like to be replaced by


Summary: I strongly recommend this book if you

want to improve the quality of your code by

verifying it thoroughly. Using the recipes in

"Perl Testing" takes the unsexyness out of

Quality Assurance.
6 internautes sur 6 ont trouvé ce commentaire utile 
5.0 étoiles sur 5 Excellent book 12 septembre 2006
Par Eric J. Wu - Publié sur
Format: Broché Achat vérifié
Love this book, excellent intro to Perl testing. One of the few (or only) books on Perl testing out there. Not sure what the people who gave it a low rating would've recommended instead - there are some web docs out there but they are all by chromatic too.

Contents include the following:

Test::More, Dest::Deep, test_ok, cmp_deeply, is, Devel::Cover, Test::Harness, Mock modules, program testing, testing databases and Apache, and much more.

Fairly easy to follow. If you program seriously in Perl, but need to learn more about testing, this is the book to have.
7 internautes sur 8 ont trouvé ce commentaire utile 
5.0 étoiles sur 5 This is a great Perl testing book 9 octobre 2005
Par Robert Hicks - Publié sur
Format: Broché
If you have never been involved in testing your Perl stuff this book lets you know just about everything that you would want to know. Being new to Perl, this book told me everything I wanted to know about testing my Perl programs.

If you are already testing your Perl programs, this book may give you some ideas or get you thinking about different ways to test. If you have never tested your Perl programs before, this book is a fantastic resource.
9 internautes sur 11 ont trouvé ce commentaire utile 
5.0 étoiles sur 5 Pragmatic guide to Perl testing 3 août 2005
Par Jack D. Herrington - Publié sur
Format: Broché
Like most of the Notebook series this is a short rocket ride though a series of topics. But this book is written well enough that the flow of test driven development for every type of code will work for an experienced Perl programmer. The book covers the fundamentals of test driven development. It also covers database code testing, and web app testing through robots. An excellent book on Perl and a great addition to the set of O'Reilly Perl books.

While you are looking you should also check out "Perl Best Practices", which is phenomenal.
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