Add tests of APDB update record handling

The `test_ppdbBigQuery` module was also renamed to
`tests_ppdb_bigquery` following snakecase conventions.

Author: JeremyMcCormick

python/lsst/dax/ppdb/tests/_bigquery.py

@@ -37,7 +37,8 @@
 )
 from lsst.dax.apdb.sql import ApdbSql
 from lsst.dax.ppdb import PpdbConfig
-from lsst.dax.ppdb.bigquery import ChunkUploader, PpdbBigQuery
+from lsst.dax.ppdb.bigquery import PpdbBigQuery
+from lsst.dax.ppdb.bigquery.chunk_uploader import ChunkUploader
 from lsst.dax.ppdb.tests._ppdb import TEST_SCHEMA_RESOURCE_PATH
 
 try:

tests/test_ppdbBigQuery.py

@@ -0,0 +1,39 @@
+# This file is part of dax_ppdb.
+#
+# Developed for the LSST Data Management System.
+# This product includes software developed by the LSST Project
+# (http://www.lsst.org).
+# See the COPYRIGHT file at the top-level directory of this distribution
+# for details of code ownership.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import unittest
+
+from lsst.dax.ppdb.tests import PpdbTest
+from lsst.dax.ppdb.tests._bigquery import PostgresMixin, SqliteMixin
+
+try:
+    import testing.postgresql
+except ImportError:
+    testing = None
+
+
+class SqliteTestCase(SqliteMixin, PpdbTest, unittest.TestCase):
+    """A test case for the PpdbBigQuery class using a SQLite backend."""
+
+
+@unittest.skipUnless(testing is not None, "testing.postgresql module not found")
+class PostgresTestCase(PostgresMixin, PpdbTest, unittest.TestCase):
+    """A test case for the PpdbBigQuery class using a Postgres backend."""