[hotfix][cassandra][tests] Use CassandraTupleOutputFormat

diff --git a/flink-connector-cassandra/src/test/java/org/apache/flink/streaming/connectors/cassandra/CassandraConnectorITCase.java b/flink-connector-cassandra/src/test/java/org/apache/flink/streaming/connectors/cassandra/CassandraConnectorITCase.java
index 773e109..7b92e47 100644
--- a/flink-connector-cassandra/src/test/java/org/apache/flink/streaming/connectors/cassandra/CassandraConnectorITCase.java
+++ b/flink-connector-cassandra/src/test/java/org/apache/flink/streaming/connectors/cassandra/CassandraConnectorITCase.java
@@ -31,7 +31,6 @@
 import org.apache.flink.api.java.typeutils.TypeExtractor;
 import org.apache.flink.api.scala.typeutils.CaseClassTypeInfo;
 import org.apache.flink.batch.connectors.cassandra.CassandraInputFormat;
-import org.apache.flink.batch.connectors.cassandra.CassandraOutputFormat;
 import org.apache.flink.batch.connectors.cassandra.CassandraPojoInputFormat;
 import org.apache.flink.batch.connectors.cassandra.CassandraPojoOutputFormat;
 import org.apache.flink.batch.connectors.cassandra.CassandraRowOutputFormat;
@@ -742,7 +741,8 @@
     @Test
     public void testCassandraBatchTupleFormat() throws Exception {
         OutputFormat<Tuple3<String, Integer, Integer>> sink =
-                new CassandraOutputFormat<>(injectTableName(INSERT_DATA_QUERY), builderForWriting);
+                new CassandraTupleOutputFormat<>(
+                        injectTableName(INSERT_DATA_QUERY), builderForWriting);
         try {
             sink.configure(new Configuration());
             sink.open(0, 1);