TransformSpecTest should extends InitializedNullHandlingTest (#10392)
diff --git a/server/src/test/java/org/apache/druid/segment/indexing/TransformSpecTest.java b/server/src/test/java/org/apache/druid/segment/indexing/TransformSpecTest.java
index 8102a71..763a924 100644
--- a/server/src/test/java/org/apache/druid/segment/indexing/TransformSpecTest.java
+++ b/server/src/test/java/org/apache/druid/segment/indexing/TransformSpecTest.java
@@ -35,12 +35,13 @@
import org.apache.druid.segment.TestHelper;
import org.apache.druid.segment.transform.ExpressionTransform;
import org.apache.druid.segment.transform.TransformSpec;
+import org.apache.druid.testing.InitializedNullHandlingTest;
import org.junit.Assert;
import org.junit.Test;
import java.util.Map;
-public class TransformSpecTest
+public class TransformSpecTest extends InitializedNullHandlingTest
{
private static final MapInputRowParser PARSER = new MapInputRowParser(
new TimeAndDimsParseSpec(