add log to find problem

Author: loserwang1024

flink-cdc-connect/flink-cdc-source-connectors/flink-connector-oracle-cdc/src/test/java/com/ververica/cdc/connectors/oracle/source/OracleSourceITCase.java

@@ -159,6 +159,9 @@ public void testEnableBackfillWithPreHighWaterMark() throws Exception {
                         "+I[15213, user_15213, Shanghai, 123567891234]");
         // when enable backfill, the wal log between [snapshot_point,  high_watermark) will be
         // applied as snapshot image
+        StringBuilder stringBuilder = new StringBuilder();
+        records.stream().forEach(item -> stringBuilder.append(item));
+        log.info(stringBuilder.toString());
         assertEqualsInAnyOrder(expectedRecords, records);
     }
 

flink-cdc-connect/flink-cdc-source-connectors/flink-connector-sqlserver-cdc/src/test/java/com/ververica/cdc/connectors/sqlserver/source/SqlServerSourceITCase.java

@@ -150,6 +150,9 @@ public void testEnableBackfillWithPreHighWaterMark() throws Exception {
                         "+I[15213, user_15213, Shanghai, 123567891234]");
         // when enable backfill, the wal log between [snapshot_point,  high_watermark) will be
         // applied as snapshot image
+        StringBuilder stringBuilder = new StringBuilder();
+        records.stream().forEach(item -> stringBuilder.append(item));
+        log.info(stringBuilder.toString());
         assertEqualsInAnyOrder(expectedRecords, records);
     }