tests: update default runtime used for tests (#1498)

* tests: update default runtime used for tests

* update system presubmits

* update conformance presubmit

* install setuptools for lint_setup_py

* lint

* use venv instead of virtualenv for nox backend

* Revert "use venv instead of virtualenv for nox backend"

This reverts commit 7fc0fe8.

* remove unit 3.7/3.8 in default nox session

* update comment

* ignore lint false positive

* Use python 3.10 for blacken nox session, which is the latest version available in the python post processor

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: parthea

.github/sync-repo-settings.yaml

@@ -9,7 +9,7 @@ branchProtectionRules:
   requiredStatusCheckContexts:
     - 'Kokoro'
     - 'cla/google'
-    - 'Kokoro system-3.8'
+    - 'Kokoro system-3.12'
     - 'OwlBot Post Processor'
 - pattern: python2
   requiresCodeOwnerReviews: true

.gitignore

@@ -62,6 +62,3 @@ system_tests/local_test_setup
 # Make sure a generated file isn't accidentally committed.
 pylintrc
 pylintrc.test
-
-# Docker files
-get-docker.sh

.kokoro/presubmit/system-3.8.cfg .kokoro/presubmit/system-3.12.cfg.kokoro/presubmit/system-3.8.cfg renamed to .kokoro/presubmit/system-3.12.cfg

@@ -3,7 +3,7 @@
 # Only run this nox session.
 env_vars: {
     key: "NOX_SESSION"
-    value: "system-3.8"
+    value: "system-3.12"
 }
 
 # Credentials needed to test universe domain.

google/cloud/storage/notification.py

@@ -257,7 +257,7 @@ def create(self, client=None, timeout=_DEFAULT_TIMEOUT, retry=None):
         with create_trace_span(name="Storage.BucketNotification.create"):
             if self.notification_id is not None:
                 raise ValueError(
-                    f"notification_id already set to {self.notification_id}; must be None to create a Notification."
+                    f"notification_id already set to {self.notification_id}; must be None to create a Notification."  # noqa: E702
                 )
 
             client = self._require_client(client)

noxfile.py

@@ -26,10 +26,10 @@
 BLACK_VERSION = "black==23.7.0"
 BLACK_PATHS = ["docs", "google", "tests", "noxfile.py", "setup.py"]
 
-DEFAULT_PYTHON_VERSION = "3.8"
-SYSTEM_TEST_PYTHON_VERSIONS = ["3.8"]
+DEFAULT_PYTHON_VERSION = "3.12"
+SYSTEM_TEST_PYTHON_VERSIONS = ["3.12"]
 UNIT_TEST_PYTHON_VERSIONS = ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
-CONFORMANCE_TEST_PYTHON_VERSIONS = ["3.8"]
+CONFORMANCE_TEST_PYTHON_VERSIONS = ["3.12"]
 
 CURRENT_DIRECTORY = pathlib.Path(__file__).parent.absolute()
 
@@ -44,7 +44,13 @@
     "lint",
     "lint_setup_py",
     "system",
-    "unit",
+    # TODO(https://github.com/googleapis/python-storage/issues/1499):
+    # Remove or restore testing for Python 3.7/3.8
+    "unit-3.9",
+    "unit-3.10",
+    "unit-3.11",
+    "unit-3.12",
+    "unit-3.13",
     # cover must be last to avoid error `No data to report`
     "cover",
 ]
@@ -68,7 +74,9 @@ def lint(session):
     session.run("flake8", "google", "tests")
 
 
-@nox.session(python=DEFAULT_PYTHON_VERSION)
+# Use a python runtime which is available in the owlbot post processor here
+# https://github.com/googleapis/synthtool/blob/master/docker/owlbot/python/Dockerfile
+@nox.session(python=["3.10", DEFAULT_PYTHON_VERSION])
 def blacken(session):
     """Run black.
 
@@ -84,7 +92,7 @@ def blacken(session):
 @nox.session(python=DEFAULT_PYTHON_VERSION)
 def lint_setup_py(session):
     """Verify that setup.py is valid (including RST check)."""
-    session.install("docutils", "pygments")
+    session.install("docutils", "pygments", "setuptools>=79.0.1")
     session.run("python", "setup.py", "check", "--restructuredtext", "--strict")
 
 

owlbot.py

@@ -104,4 +104,6 @@
 
 python.py_samples(skip_readmes=True)
 
-s.shell.run(["nox", "-s", "blacken"], hide_output=False)
+# Use a python runtime which is available in the owlbot post processor here
+# https://github.com/googleapis/synthtool/blob/master/docker/owlbot/python/Dockerfile
+s.shell.run(["nox", "-s", "blacken-3.10"], hide_output=False)

tests/resumable_media/system/requests/test_download.py

@@ -324,7 +324,9 @@ def test_download_to_stream(self, add_files, authorized_transport):
             check_tombstoned(download, authorized_transport)
 
     @pytest.mark.parametrize("checksum", ["auto", "md5", "crc32c", None])
-    def test_single_shot_download_to_stream(self, add_files, authorized_transport, checksum):
+    def test_single_shot_download_to_stream(
+        self, add_files, authorized_transport, checksum
+    ):
         for info in ALL_FILES:
             actual_contents = self._get_contents(info)
             blob_name = get_blob_name(info)

tests/resumable_media/unit/requests/test_download.py

@@ -1370,7 +1370,9 @@ def _mock_response(status_code=http.client.OK, chunks=None, headers=None):
         response.__enter__.return_value = response
         response.__exit__.return_value = None
         response.iter_content.return_value = iter(chunks)
-        response.raw.read = mock.Mock(side_effect=lambda *args, **kwargs: b"".join(chunks))
+        response.raw.read = mock.Mock(
+            side_effect=lambda *args, **kwargs: b"".join(chunks)
+        )
         return response
     else:
         return mock.Mock(

tests/unit/test_blob.py

@@ -2099,7 +2099,7 @@ def _download_as_text_helper(
 
         properties = {}
         if charset is not None:
-            properties["contentType"] = f"text/plain; charset={charset}"
+            properties["contentType"] = f"text/plain; charset={charset}"  # noqa: E702
         elif no_charset:
             properties = {"contentType": "text/plain"}
 

tests/unit/test_bucket.py

@@ -4094,7 +4094,7 @@ def _generate_upload_policy_helper(self, **kwargs):
                     break
             else:  # pragma: NO COVER
                 self.fail(
-                    f"Condition {expected_condition} not found in {policy_conditions}"
+                    f"Condition {expected_condition} not found in {policy_conditions}"  # noqa: E713
                 )
 
         return policy_fields, policy