Unit Testing with Terratest

Infrastructure as Code (IaC) allows you to manage infrastructure like software. Just like software, IaC configurations can have bugs!

• Reliability: Catch errors before deployment.
• Consistency: Ensure resources are provisioned as expected.
• Confidence: Make changes with less fear of breaking existing infrastructure.

Testing your Terraform code is crucial for building robust and maintainable cloud environments.

When testing IaC, we often talk about two main types:

• Unit Tests: Focus on small, isolated parts of your code, like a single Terraform module. They ensure individual components work correctly in isolation.
• Integration Tests: Verify that multiple components or modules work together as a system, often deploying real resources to a cloud environment.

In this lesson, we'll focus on unit testing your Terraform modules.