Summary

Expand the Python test suites to validate asynchronous step-down workflows, covering concurrent reads/writes during an async step-down event.

Motivation

Python test suites provide targeted functional coverage for specific WiredTiger behaviors. This ticket ensures async step-down is exercised across the various timestamp modes, prepared transactions, and fast truncate paths.

Scope

• Concurrent read/write cursor operations transitioning during an async step-down event
• Different timestamp setting modes (commit timestamp, durable timestamp, read timestamp, etc.)
• Prepared transactions during async step-down
• Fast truncate during async step-down

Definition of Done

• Python test suites cover async step-down with:
  • Concurrent CRUD cursor ops(all cursor operations)
  • Various timestamp setting patterns
  • Prepared transaction workflows
  • Fast truncate scenarios