ci: add repeated async teardown stability checks (#2585)

Author: seratch

.github/scripts/run-asyncio-teardown-stability.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+repeat_count="${1:-5}"
+
+asyncio_progress_args=(
+  tests/test_asyncio_progress.py
+)
+
+run_step_execution_args=(
+  tests/test_run_step_execution.py
+  -k
+  "cancel or post_invoke"
+)
+
+for run in $(seq 1 "$repeat_count"); do
+  echo "Async teardown stability run ${run}/${repeat_count}"
+  uv run pytest -q "${asyncio_progress_args[@]}"
+  uv run pytest -q "${run_step_execution_args[@]}"
+done

.github/workflows/tests.yml

@@ -97,6 +97,9 @@ jobs:
       - name: Run tests
         if: steps.changes.outputs.run == 'true' && matrix.python-version != '3.12'
         run: make tests
+      - name: Run async teardown stability tests
+        if: steps.changes.outputs.run == 'true' && (matrix.python-version == '3.10' || matrix.python-version == '3.14')
+        run: make tests-asyncio-stability
       - name: Skip tests
         if: steps.changes.outputs.run != 'true'
         run: echo "Skipping tests for non-code changes."

Makefile

@@ -22,6 +22,10 @@ mypy:
 .PHONY: tests
 tests: tests-parallel tests-serial
 
+.PHONY: tests-asyncio-stability
+tests-asyncio-stability:
+	bash .github/scripts/run-asyncio-teardown-stability.sh
+
 .PHONY: tests-parallel
 tests-parallel:
 	uv run pytest -n auto --dist loadfile -m "not serial"