Failure / flake in CassandraIOTest > testEstimatedSizeBytes

https://ci-beam.apache.org/job/beam_PreCommit_Java_Commit/12328/testReport/junit/org.apache.beam.sdk.io.cassandra/CassandraIOTest/testEstimatedSizeBytes/

AssertionError with no error message. Please give a meaningful error message. Preferably do not use assertTrue and other less meaningful asserters.

Digging into the code, it is a bounds check that the estimated bytes are +/- 10% of expected, since the result is nondeterministic. It fell outside of the range but since the assertion is written as assertTrue we do not see the actual value.

https://github.com/apache/beam/blob/66bcc9a967746cad12dfdeed473fb60c77033514/sdks/java/io/cassandra/src/test/java/org/apache/beam/sdk/io/cassandra/CassandraIOTest.java#L291