For the upcoming Gatekeeper feature in Mac OS X 10.8, Apple will make it easy for customers to prevent software from running that has not been digitally “signed” by developers with a certificate from Apple called the Developer ID certificate. Many developers already choose to sign software using self-generated signing certificates. I wrote many years [...]

Most Mac and iOS developers know that when you build an application, you advertise a number of details about the application in the “Info.plist” file, located inside the application bundle. You can examine any application on your Mac and see what kind of information the developer has conveyed about it: Navigate to a .app file [...]

I finally updated to Xcode 3.2.3. I was a little late because I had other priorities, but I wanted to get my iPhone projects building and installing onto my iPhone OS 4.0 devices, so I decided to download and install the latest SDK. Unfortunately, this seemingly minor update presented a major failure in my debug [...]

It’s not as though unit testing is completely new to me, but even years after I wrote my first tests, I still consider myself a naive amateur in many regards. I’ve been ramping up my use of tests lately thanks in large part to a technique I read about in Michael Feathers’s book Working Effectively [...]