Here's the definition and a few tests. https://gist.github.com/Warbo/9d8425fcdd7c026c795a https://gist.github.com/Warbo/9d8425fcdd7c026c795a The SimpleTest te

Here's the definition and a few tests. https://gist.github.com/Warbo/9d8425fcdd7c026c795a https://gist.github.com/Warbo/9d8425fcdd7c026c795a The SimpleTest test class probably doesn't work as-is, since it is originally derived from our own class hierarchy, but shouldn't be too hard to fix.