NicoK commented on a change in pull request #6705: [FLINK-10356][network] add sanity checks to SpillingAdaptiveSpanningRecordDeserializer URL: https://github.com/apache/flink/pull/6705#discussion_r230420404
########## File path: flink-runtime/src/test/java/org/apache/flink/runtime/io/network/api/serialization/SpanningRecordSerializationTest.java ########## @@ -104,11 +120,236 @@ public void testHandleMixedLargeRecords() throws Exception { testSerializationRoundTrip(originalRecords, segmentSize); } + /** + * Non-spanning, deserialization reads one byte too many and succeeds. + */ + @Test + public void testHandleDeserializingTooMuchNonSpanning1() throws Exception { + testHandleWrongDeserialization( + new StringValueDeserializingTooMuch("Test string"), + 32 * 1024, + null); + } + + /** + * Non-spanning, serialization length is 16 (including headers), deserialization reads one byte + * too many and succeeds. + */ + @Test + public void testHandleDeserializingTooMuchNonSpanning2() throws Exception { + testHandleWrongDeserialization( + new StringValueDeserializingTooMuch("Test string"), + 17, Review comment: yes, that would be really nice but is not available out of the box since `StringValue#getBinaryLength` only returns `-1` and additionally, we do add one more length header from the `SpanningRecordSerializer` - I could evaluate the actual value through serializing it (maybe only once, statically) though and keep using that or so... ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services