Github user zentol commented on a diff in the pull request:

    https://github.com/apache/flink/pull/3748#discussion_r116832836
  
    --- Diff: 
flink-connectors/flink-connector-cassandra/src/test/java/org/apache/flink/streaming/connectors/cassandra/CassandraConnectorITCase.java
 ---
    @@ -392,6 +425,45 @@ public void testCassandraPojoAtLeastOnceSink() throws 
Exception {
        }
     
        @Test
    +   public void testCassandraTableSink() throws Exception {
    +           StreamExecutionEnvironment env = 
StreamExecutionEnvironment.getExecutionEnvironment();
    +           env.setParallelism(1);
    +
    +           DataStreamSource<Row> source = 
env.fromCollection(rowCollection);
    +           CassandraTableSink cassandraTableSink = new 
CassandraTableSink(new ClusterBuilder() {
    +                   @Override
    +                   protected Cluster buildCluster(Cluster.Builder builder) 
{
    +                           return builder.addContactPointsWithPorts(new 
InetSocketAddress(HOST, PORT)).build();
    +                   }
    +           }, injectTableName(INSERT_DATA_QUERY), new Properties());
    +           CassandraTableSink newCassandrTableSink = 
cassandraTableSink.configure(FIELD_NAMES, FIELD_TYPES);
    +
    +           newCassandrTableSink.emitDataStream(source);
    +
    +           env.execute();
    +           ResultSet rs = 
session.execute(injectTableName(SELECT_DATA_QUERY));
    +           Assert.assertEquals(20, rs.all().size());
    +   }
    +
    +   @Test
    +   public void testCassandraTableSinkE2E() throws Exception {
    --- End diff --
    
    What's the difference between this test and `TestCassandraTableSink`?


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