ignore the warning from demonstrating the pending-deprecated callable form in docstrings

Author: jakkdl

tox.ini

@@ -41,7 +41,7 @@ description =
     doctesting: including doctests
 commands =
     {env:_PYTEST_TOX_COVERAGE_RUN:} pytest {posargs:{env:_PYTEST_TOX_DEFAULT_POSARGS:}}
-    doctesting: {env:_PYTEST_TOX_COVERAGE_RUN:} pytest --doctest-modules --pyargs _pytest
+    doctesting: {env:_PYTEST_TOX_COVERAGE_RUN:} pytest --doctest-modules --pyargs _pytest -Wignore:"The callable form of pytest.raises":PendingDeprecationWarning
     coverage: coverage combine
     coverage: coverage report -m
 passenv =