HIVE-14540 changes ptest to batch unit tests together (instead of invoking mvn test on individual test classes). As a result, output for multiple tests is a common directory - similar to what happens for batched q tests.
To identify the relevant directory, lookup the consoleOuput for the run. e.g. To find TestDummy Look for UTBatch.*TestDummy in consoleOutput. example output. [name=829_UTBatch_itests__qtest_8_tests, id=829, moduleName=itests/qtest, isParallel=true, testList=[TestContribNegativeCliDriver, TestHBaseNegativeCliDriver, TestCompareCliDriver, TestEncryptedHDFSCliDriver, TestPerfCliDriver, TestContribCliDriver, TestParseNegativeDriver, TestDummy]] 829_UTBatch would be the directory where the output for this test exists.