Tag Archives: pester

PowerShell – Timezone Module (PSGallery)

Today, I published my first module to the PowerShell gallery!

It’s the fairly simple module I wrote to manage the timezone on the local machine, wrapping the tzutil command. It’s all really come together over the last couple of days (I  fixed a bunch of problems by writing some proper tests for it!). I’ve also been using it to work with a lot of cool stuff with it like advanced parameter completion, psake and PSDeploy to streamline the testing and deployment.

Some of these ideas came from things I saw recently on the PowerShell.org Global Summit videos (They are all incredible). I’m annoyed I couldn’t make it this time,  but the videos and the other awesome stuff people are doing with PowerShell getting out there is great!

PowerShell – Timezone Module

I’ve been working on a few different things recently and I’ve got into a few nice things in PowerShell that I haven’t been using before. The magic of Pester is one of them! I needed to write a couple of functions to get and set the timezone on a computer. It’s not hugely complicated, but it does the job. I wrote up some tests first to get an idea on the objects I would return and how the user would interact with the cmdlets.

Also, instead of using a large ValidateSet array that would require maintaining for the Set-Timezone function, the function uses a ValidateScript that gets the valid inputs for tzutil dynamically, which is nice!

I’m still trying to figure out how to handle the _dstoff option properly, I’ll keep on it and update the module once I get it sorted.

The Timezone module can be found on my GitHub.