diff --git a/build.sbt b/build.sbt
index a3944719b2..7374cfb5ba 100644
--- a/build.sbt
+++ b/build.sbt
@@ -148,6 +148,7 @@ lazy val commonSettings = Seq(
     "-Ddelta.log.cacheSize=3",
     "-Dspark.databricks.delta.delta.log.cacheSize=3",
     "-Dspark.sql.sources.parallelPartitionDiscovery.parallelism=5",
+    "-Dspark.testing=1",
     "-Xmx1024m"
   ),