Add this test suite under "system_test" folder. It performs broker failure test with a mirroring setup in a single machine.
The setup contains a source brokers cluster and a mirror brokers cluster. The brokers in both clusters will be bounced alternately.
Message checksum is printed to the corresponding producer and consumer log files. The checksum will be validated at the end of the test. A simple logic will be used to determine how many messages are lost or duplicated.