chore: set system test version to 3.13

.kokoro/presubmit/system-3.13.cfg

@@ -0,0 +1,7 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Only run this nox session.
+env_vars: {
+    key: "NOX_SESSION"
+    value: "system-3.13"
+}

.kokoro/presubmit/system.cfg

@@ -3,5 +3,5 @@
 # Only run this nox session.
 env_vars: {
     key: "NOX_SESSION"
-    value: "system-3.9"
+    value: "system-3.13"
 }

noxfile.py

@@ -62,7 +62,7 @@
 UNIT_TEST_EXTRAS: List[str] = []
 UNIT_TEST_EXTRAS_BY_PYTHON: Dict[str, List[str]] = {}
 
-SYSTEM_TEST_PYTHON_VERSIONS: List[str] = ["3.9", "3.14"]
+SYSTEM_TEST_PYTHON_VERSIONS: List[str] = ["3.13"]
 SYSTEM_TEST_STANDARD_DEPENDENCIES: List[str] = [
     "mock",
     "pytest",

owlbot.py

@@ -144,7 +144,7 @@ def update_fixup_scripts(library):
     cov_level=100,
     split_system_tests=True,
     default_python_version="3.13",
-    system_test_python_versions=["3.9", "3.14"],
+    system_test_python_versions=["3.13"],
     unit_test_python_versions=["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"],
 )
 

pytest.ini

@@ -22,4 +22,5 @@ filterwarnings =
     ignore:.*The \`credentials_file\` argument is deprecated.*:DeprecationWarning
     # Remove after updating test dependencies that use asyncio.iscoroutinefunction
     ignore:.*\'asyncio.iscoroutinefunction\' is deprecated.*:DeprecationWarning
-    ignore:.*\'asyncio.get_event_loop_policy\' is deprecated.*:DeprecationWarning
+    ignore:.*\'asyncio.get_event_loop_policy\' is deprecated.*:DeprecationWarning
+    ignore:.*Please upgrade to the latest Python version.*:FutureWarning

tests/unit/v1/test_async_client.py

@@ -374,6 +374,9 @@ async def test_asyncclient_get_all_read_time():
 
 
 @pytest.mark.asyncio
+@pytest.mark.filterwarnings(
+    "ignore:coroutine method 'aclose' of 'AsyncIter' was never awaited:RuntimeWarning"
+)
 async def test_asyncclient_get_all_unknown_result():
     from google.cloud.firestore_v1.base_client import _BAD_DOC_TEMPLATE