Having recently worked quite a bit on some testing tools, including tools to parse TAP, I’ve become intimately familiar with its shortcomings. I’m going to write these up here in the hopes that future generations of test output format developers will not repeat these mistakes. TAP is (mostly) well-suited for human consumption. It’s easy to … (Read More)

My last day at MaxMind will be January 5, 2017. For the curious, I left of my own free will. I was not laid off, fired, put into a cannon and launched into space, or NDA’d as seen on the TV show Incorporated. So now it’s time to find something else to do to fill … (Read More)

Have you seen my new module, Params::ValidationCompiler? It does pretty much everything that MooseX::Params::Validate and Params::Validate do, but way faster. As such, I don’t plan on using either of those modules in new code, and I’ll be converting over my old code as I get the chance. I’d suggest that you consider doing the same. … (Read More)

I’ve been thinking about DateTime recently and I’ve come to the conclusion that the Perl community would be much better off if there was a DateTime core team maintaining the core DateTime modules. DateTime.pm, the main module, is used by several thousand other CPAN distros, either directly or indirectly. Changes to DateTime.pm (or anything that … (Read More)

I’ve decided to stop renewing the masonbook.com domain after next year. The new home for the book is masonbook.houseabsolute.com. Please update your bookmarks. … (Read More)

My employer MaxMind is hiring for two engineering positions. We have a positions for a Software Engineer in Test and a Software Engineer. If you’ve always wanted to work with me, here’s your chance. If you’ve always wanted to avoid working with me, now you have the knowledge needed to achieve that goal. It’s a … (Read More)

I recently released a new parameter validation module tentatively called Params::CheckCompiler (aka PCC, better name suggestions welcome) (Edit: Now renamed to Params::ValidationCompiler). Unlike Params::Validate (aka PV), this new module generates a highly optimized type checking subroutine for a given set of parameters. If you use a type system capable of generating inlined code, this can … (Read More)

It’s not too late to sign up for my Introduction to Moose class at YAPC::NA 2016. This year’s class will take place on Thursday, June 23. I’m excited to be doing this course again. It’s gotten great reviews from past students. Sign up today. There are lots of other great courses. For the first time … (Read More)

My Introduction to Moose class is back at YAPC::NA 2016. This year’s class will take place on Thursday, June 23. I’m excited to be doing this course again. It’s gotten great reviews from past students. Sign up today. And of course, there are tons of other great offerings this year too, including several from the … (Read More)

What sort of things can you learn when interviewing someone for a technical position? What questions are useful? This is a much-discussed and sometimes hotly debated topic in the tech world. I’ve done a fair bit of interviewing for my employer over the past few years. We’ve built an excellent technical team, either because or … (Read More)