Fix test.

Author: claudevdm

sdks/python/apache_beam/io/gcp/tests/xlang_spannerio_it_test.py

@@ -74,10 +74,10 @@ class SpannerPartTestRow(NamedTuple):
 
 
 @pytest.mark.uses_gcp_java_expansion_service
-# @unittest.skipUnless(
-#     os.environ.get('EXPANSION_JARS'),
-#     "EXPANSION_JARS environment var is not provided, "
-#     "indicating that jars have not been built")
+@unittest.skipUnless(
+    os.environ.get('EXPANSION_JARS'),
+    "EXPANSION_JARS environment var is not provided, "
+    "indicating that jars have not been built")
 @unittest.skipIf(spanner is None, 'GCP dependencies are not installed.')
 @unittest.skipIf(
     DockerContainer is None, 'testcontainers package is not installed.')