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Case Study

Smoke coverage for a multi-variant voucher checkout without duplicated logic

A voucher order form ran across multiple brand variants, each with a different UI and different payment methods. Any change to one variant could silently break another — and there was no automated check to catch it before release.

Best fit for
  • e-commerce or voucher checkout flows with multiple product or brand variants
  • white-label products where UI differs but business logic is shared
  • teams that need a fast smoke baseline before release without test maintenance overhead
Technology stack
PlaywrightTypeScriptPage Object ModelParameterized projectsESLint / Prettier

Problem

A voucher order form ran across multiple brand variants, each with a different UI and different payment methods. Any change to one variant could silently break another — and there was no automated check to catch it before release.

  • checkout flow tested manually on one variant only
  • UI differences between brands meant regressions were easy to miss
  • payment method availability varied per variant — no coverage for edge cases
  • validation and error states were not verified before deployment

Action

Built a parameterized Playwright smoke suite covering the full checkout flow and validation scenarios across all brand variants from a single shared test set.

  • one parameterized scenario running against every brand configuration — no test duplication
  • full purchase flow covered for all available payment methods per variant
  • validation and error states included: empty fields, missing consent, boundary inputs
  • real order completion verified — not just form submission without crash

Result

Checkout regressions are now caught before release across all variants. The suite runs clean and extends without rewriting existing logic.

  • main purchase flow verified across all brand variants from one test set
  • payment method differences centralized in configuration, not scattered in tests
  • first issue caught: a consent checkbox required by one brand was silently absent on another variant — not visible during manual spot-checks

When it makes sense

  • e-commerce or voucher checkout flows with multiple product or brand variants
  • white-label products where UI differs but business logic is shared
  • teams that need a fast smoke baseline before release without test maintenance overhead

Technologies

Playwright · TypeScript · Page Object Model · Parameterized projects · ESLint / Prettier