Reservamos needed to test the same changes across multiple client deployments, each with its own variations. Real-time market data meant tests were constantly flaky as prices and availability shifted minute to minute. Three dedicated QA automation engineers were needed just to keep the test suite maintained, and engineers were spending 20% of their time on quality issues, a hard cost exceeding $200K per year with no end in sight.
Case Study
$200K Saved on QA Automation
How Reservamos Saved $200K a Year by Automating QA Across Every Client Environment
$200K
saved annually
1
month to full test suite
20%
engineering time reclaimed
About
Reservamos
Reservamos SaaS is a technology partner for bus companies worldwide. Their AI-powered eCommerce solution adapts to each partner's web and mobile platforms, enhancing conversion rates, streamlining the purchase funnel, and delivering a secure, personalized experience from search to ticket generation. As a B2B2C platform, every bug in the checkout flow means lost revenue for their customers — making quality an urgent P&L issue, not just an engineering one.
the problem
Multi-tenant deployment made quality a costly, never-ending battle
the Solution
Keep suite current without manual intervention
Checksum uses AI to generate and continuously maintain end-to-end tests across every client environment and deployment. As third-party data and UI changes occur in real time, Checksum automatically updates affected tests and opens a PR, so your suite stays current without any manual intervention from your team.
Auto-generation
Tests are generated automatically using proprietary AI, saving months of development time writing and maintaining tests.
Self-healing tests
When your UI evolves, Checksum automatically repairs affected tests, beyond just selectors, repairing underlying test logic when flows themselves change.
Built for real-world complexity
Checksum handles what other tools skip: multi-user flows, SMS and email interactions, shadow DOMs, iFrames, and custom NPM logic.
the Results
A fully managed, always-on test suite that updates itself
Full coverage across every environment
As third-party dependencies changed in real time, Checksum automatically updated the affected tests and sent a pull request directly to the codebase. The Reservamos team reviewed and merged with minimal effort: no firefighting, no broken suites.
Tests that update themselves
Tests that update themselves
Instant feedback on every PR
Tests run on every PR and are segmented by priority, giving engineers immediate feedback on how their changes affect the app across different configurations and clients. Reaching the team is as simple as a Slack message when it's ever needed.
Checksum saved us $200K a year. The fact that they provide a comprehensive testing suite and maintain it in real-time is a game changer. Our engineering team moves and innovates faster and paying per test allows us to tie the costs directly to the money saved.
CTO, Reservamos
