Case Study

Automation Framework Architecture

Designing a framework's structure so that adding the 200th test is as easy as adding the 5th.

Problem

Automation frameworks that start clean often become unmaintainable as they grow — duplicated locators, test logic mixed with setup code, and no consistent place to add new data or reporting. This case study covers the architectural decisions made to avoid that from the start.

Folder Structure

Tests, page objects, components, fixtures, data and utilities each live in their own directory with a single responsibility.
Nothing outside `pages/` and `components/` is allowed to hold a raw selector — that boundary is what keeps refactors cheap.

Page Object Model & Utilities

Page objects expose behavior (`login()`, `search()`), never raw locators, to calling tests.
Shared utilities (API client, wait helpers, formatting) are framework-agnostic and unit-testable on their own.

Fixtures & Data Layer

Custom fixtures inject ready-to-use page objects and authenticated contexts into tests, removing setup boilerplate.
Test data is typed and separated from test logic, enabling data-driven expansion without touching test bodies.

Report Layer & Scalability

Reporting (HTML report, traces, screenshots) is configured centrally in `playwright.config.ts`, so every new spec file gets consistent artifacts for free.
Parallel execution and worker configuration were tuned so suite runtime grows sub-linearly as tests are added.

Result

— New test scenarios are added by writing a test + data, not by touching framework internals.
— A single locator or workflow change now updates every dependent test automatically.
— The framework structure has stayed consistent as coverage expanded, with no rewrite needed.