The test system seems to ignore the fact that Cactus exits with a nonzero exit code. It displays
Cactus exited with error code 1 Please check the logfile...
No files created in test directory
Success: 0 files identical
And in the summary at the end, it treats this as a passing test. In this case, there were no test reference files and no files output, because the test (by design) does not produce any data, it just aborts if the test fails.