Developed an end-to-end testing framework for Terraform null_resource workflows in the scalr-automation/terraform-scalr-nested-mirror1 repository, focusing on improving reliability and validation of nested-mirror deployments. Leveraged Infrastructure as Code principles and HCL to implement time_static-based import flows, enabling thorough correctness checks for resource imports. Introduced template-driven testing for resource creation, forgetting, and moving, supporting both v1 and v2 lifecycle scenarios. This work expanded test coverage and enabled safer migrations by validating lifecycle transitions, reducing production risk and accelerating validation cycles. Demonstrated proficiency in Terraform and automated testing, delivering measurable improvements in deployment confidence and migration safety for complex infrastructure environments.