pester

VS Code + Integrated Console + Pester = No Excuse Testing

Following up on an earlier post where I lightly touch on using the PowerShell Extension for the VS Code editor, I’d love to share how easy it is to Pester test and hopefully¬†convince you to start testing your code today! If you’re not familiar with me, I’m a huge fan of Pester. I mean this is such a great module that it’s baked into Windows! I Pester test EVERYTHING. Even things outside of my custom PowerShell functions… ETL executions, Jenkins job statuses, all kinds of things. I did a post about Pester testing SQL Server stuff, check it out if you haven’t seen it!

Using VS Code and the PowerShell extension, writing Pester tests has never been easier!!

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Mocking SQL Results in Pester

A lot of my Powershell code interacts with databases and servers. Sometimes I’m grabbing a connection string, other times I’m check-pointing a long operation. When writing Powershell code that interfaces with databases, there’s usually a lot to test for. Well, it’s surprisingly simple to mock up SQL results using Pester.

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The beginning

This is the story of how I started to love Ruby.

The Setup

I was working on adding integration tests to one of our main chef cookbooks, the one that installs and manages our SQL Server instances. Being a Windows shop, I used Pester and the Kitchen-Pester plugin.  I had a working set of Pester tests that verified all of the configuration settings on the server. Test-Kitchen passed when I ran the steps individually:

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