shot at recovering coverage

.github/workflows/ci.yml

@@ -73,9 +73,13 @@ jobs:
       - name: Isolation tests using parallel avocado runner
         # if later on we decide that unit tests are still more appropriate here just do
         #run: make check
-        run: PYTHONPATH=:. avocado run --max-parallel-tasks=4 selftests/isolation/test_*
-        # TODO: coverage report with avocado runs ends in 0% or ~0%, perhaps due to avocado or its async testing
-        #run: PYTHONPATH=:. coverage run --append --source=avocado_i2n $(which avocado) run --nrunner-max-parallel-tasks=4 selftests/isolation/test_*
+        # TODO: coverage report with avocado runs ends in 0% or ~0%, perhaps due to avocado or its async testing?
+        #run: PYTHONPATH=:. coverage run --append --source=avocado_i2n $(which avocado) run --max-parallel-tasks=4 selftests/isolation/test_*
+        #run: COVERAGE_RUN=1 PYTHONPATH=:. avocado run --max-parallel-tasks=4 selftests/isolation/test_*
+        run: |
+          PYTHONPATH=:. coverage run -m avocado run --max-parallel-tasks=4 selftests/isolation/test_*
+          coverage combine
+          coverage report
       #- name: Collect all coverage
       #  run: coverage report -m
       #- name: Upload coverage to Codecov