Engineering publication

The Automation Brief

Practical quality-engineering guides for people building reliable tests, delivery systems, developer tools, and AI-assisted workflows.

Automation Tutorials articles

5 published

SRShashank Rawlani4 Sept 2026

Automation Tutorials

Playwright Trace Viewer as a Root-Cause Workflow, Not a Video Player

A Playwright trace is a recorded crime scene, not a screencast. This walks through what each panel proves, a seven-step read order for a CI-only failure, and why the standard on-first-retry setting often hands you a recording of the run that passed.

12 min read

Dark diagrammatic cover: a horizontal action timeline of duration bars runs edge to edge, with one bar and its ringed marker highlighted in orange as the failing step; a cone spreads down from it into three stacked evidence panels showing a DOM element tree with the clicked node circled, a network waterfall with one failed request, and console log lines with one error.

SRShashank Rawlani3 Sept 2026

Automation Tutorials

Design Playwright Fixtures for Parallel Test Isolation

Going parallel does not break tests; it reveals the ones that were already sharing state. Here is how to choose fixture scope deliberately, and why parallelIndex and workerIndex are not interchangeable.

8 min read

Abstract diagram of four parallel worker lanes running side by side, each beginning with its own sealed fixture capsule and ending in a teardown marker, with a shared-state channel crossed out.

SRShashank Rawlani2 Sept 2026

Automation Tutorials

Debug Playwright Strict-Mode Locator Failures

Strict mode is Playwright refusing to guess which element you meant. The error already lists the candidates and suggests a fix for each. Here is the order to work through, and why an index is almost never the right answer.

10 min read

Abstract diagram in which one locator query fans out to three identical matching controls and is rejected, then resolves to a single match once it is scoped inside a container boundary.

SRShashank Rawlani31 Aug 2026

Automation Tutorials

Playwright Auto-Waiting vs Business-State Waiting

Playwright's six actionability checks tell you an element is ready to click. They say nothing about whether the order was placed. Most flaky waits are that second question answered with the first question's tool.

7 min read

Abstract diagram comparing two timelines: an upper track that stops early when the element becomes actionable, and a lower track that keeps waiting until a confirmed business state is reached, with the gap between them marked.

SRShashank Rawlani30 Aug 2026

Automation Tutorials

Playwright Test Architecture: Start with Risk, Not Pages

Page objects make every screen equally easy to test, and equal ease produces equal coverage of things with wildly unequal consequences. This shows how to score capabilities by impact multiplied by likelihood, then encode that ranking in Playwright projects, tags, boxed steps and per-tier retries so the risk model actually changes what runs.

12 min read

Abstract diagram of a risk grid in which a few cells are highlighted and a single test spine branches only to those high-risk cells, rather than spreading evenly across every page.

Newsletter

Subscribe to the Briefing

Get our highly technical testing roadmap and modern QA frameworks tips directly to your inbox.

No spam. Just premium quality engineering insights. Unsubscribe anytime.