So I have something to show the two of you.

Oh, this is always ominous.

Check our select.

Oh, my God, I'm so happy.

I'm so happy.

So I'm looking at a screenshot, a very, very small,

very heavily cropped screenshot from Xcode.

On the right-hand side, it's a bunch of green diamonds

that have checkmarks in them.

And on the left, test value conversions, a function, test

open DB, function, test queries, function, test

heavy workload, function, et cetera, et cetera.

Oh, my God, I'm so proud of you.

Now, I don't know anything really about writing tests

in Xcode, but that makes two of us.

They're supposed to all begin with the word test.

I think they have to.

I don't remember if it's required or not,

but it's just certainly the convention.

It certainly makes your life easier if they do,

because you get wonderful UI integration,

where you can just click and run one of them,

...