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Automated Test Suite Migration Framework for Version Upgrades
Automated large test-suite migration to new versions using a reusable conversion framework.
Project overview
A large legacy test suite needed to be updated to match a newer product version. Manual conversion was slow, inconsistent, and expensive, and estimates suggested the effort would drag on for a long time.
Nithron’s goal was to turn the migration into an engineering problem: create a repeatable, automated conversion workflow that could update tests at scale, enforce consistency, and remain usable for future upgrades.
Execution
Nithron designed and implemented an automation-first migration strategy:
- Built a conversion framework with clear rules and predictable output structure
- Implemented verification steps to catch edge cases early
- Automated repetitive conversion work and standardized results across the suite
- Documented the workflow so it could be reused as an internal capability
- Ensured the approach could be applied incrementally, enabling safe progress without a risky big-bang migration
The focus was not just speed, but repeatability: a process that teams can run again when the next upgrade arrives.
Project results
The migration became dramatically faster and more consistent:
- Migrated 300+ tests via automation with predictable output
- Significantly reduced manual conversion effort and error rate
- Delivered a reusable internal framework that supported ongoing upgrades
- Improved confidence in version upgrades by making migration measurable and repeatable
“Highly recommended”
Working with Thiago, the founder and principal engineer behind Nithron, was a great experience. Strong technical judgment, clean architecture, and a clear focus on scalable, long-term solutions. Communication was clear and professional throughout. I would confidently recommend his work for complex software projects.
Alan Keune,
“Highly recommended them”
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Sophie Moore,
“One of a kind service”
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Mike Warren,
“An amazing code agency”
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