Testing Azure Bicep User-Defined Functions using Bicep Console and Pester

This article provides a detailed guide on testing Azure Bicep User-Defined Functions using the Bicep Console and Pester testing framework. It explains why testing is crucial to prevent deployment errors, outlines a high-level test flow with build validation pipelines, and demonstrates how to use the Bicep Console for expression evaluation without Azure connections. The recommended folder structure and a PowerShell helper function are included to automate testing. Bicep version requirements (v0.40.2 or higher) are noted. This is a technical tutorial focused on IT/DevOps practices for infrastructure as code.