Test Accounts Are Infrastructure: Managing a Shared Pool for Parallel Automation
Why a finite set of test accounts quietly caps your parallelism — and the broker pattern that fixes it.
TL;DR: Hard-coded test accounts quietly cap parallelism: tests pinned to the same account can’t run at once, and adding a test becomes a manual chore. The fix is to treat accounts as a leased resource managed by a broker — a test asks for any free account with the capability it needs, and gets it back to the pool afterwards. A benchmark shows the difference.
The problem nobody plans for
Automation teams invest heavily in how tests are written — structure, waits and retries, assertions, reporting — and almost nothing in who the tests run as. Test accounts start as a convenience: a few users, created early, hard-coded into the framework, each tied to particular tests. For a small suite that runs one test at a time, this is invisible...
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