Changes pytest flag to ignore FutureWarning re: 3.7 and 3.8

Author: chalmerlowe

noxfile.py

@@ -187,7 +187,7 @@ def default(session, tests_path):
     session.run(
         "py.test",
         "--quiet",
-        "-W default::PendingDeprecationWarning",
+        "-W default::FutureWarning",
         f"--junitxml={os.path.split(tests_path)[-1]}_{session.python}_sponge_log.xml",
         "--cov=db_dtypes",
         "--cov=tests/unit",
@@ -265,7 +265,7 @@ def prerelease(session, tests_path):
     session.run(
         "py.test",
         "--quiet",
-        "-W default::PendingDeprecationWarning",
+        "-W default::FutureWarning",
         f"--junitxml={os.path.split(tests_path)[-1]}_prerelease_{session.python}_sponge_log.xml",
         "--cov=db_dtypes",
         "--cov=tests/unit",

tests/unit/test__init__.py

@@ -12,6 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import sys
 from unittest import mock
 
 import pytest
@@ -22,7 +23,6 @@
 MOCK_EXTRACT_VERSION = f"{HELPER_MODULE_PATH}.extract_runtime_version"
 MOCK_WARN = "warnings.warn"  # Target the standard warnings module
 
-
 @pytest.mark.parametrize(
     "mock_version_tuple, version_str",
     [