terraform test: The Built-in Terraform Module Testing Framework, No Go Required

Originally published at recca0120.github.io You've written a Terraform module. How do you verify the variable validation rules work? That versioning gets enabled when the flag is set? That tags are passed through correctly? Before, you either squinted at terraform plan output or wrote Terratest in Go. Since Terraform 1.6, there's a built-in testing framework. Write tests in HCL, run with terraform test . No Go, no extra tools. Two Testing Modes terraform test supports two modes: Plan-only (unit