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Test automation framework architecture. Part 2.2 - Two-layered architecture

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As we've learned in previous posts of the series - Layered (also known as Tiered) architecture is a de-facto standard of the industry.

There're two major variations of this architectural pattern that one should be aware of: 3-layered architecture (described here) and 2-layered architecture. This post is going to concentrate on 2-layered architecture.



2-layered architecture is typically seen in UI-specific test automation frameworks. The key feature of this pattern is absence of Business-layer, so most of business-related logic are actually to be put into Page Objects.

In order to avoid "The God class" anti-pattern and still be able to contain business-related logic in Page Object, one usually uses libraries or frameworks that allow to simplify DOM-elements location, thus letting Page Objects to concentrate less on locating elements and more on bsiness-logic itself.

The good thing in this architectural pattern is that it actually allows you to write less code (and let…