unforeseen test outcome
Computing term for a test result that was not predicted or expected, often in software testing or quality assurance contexts.
If an unforeseen test outcome occurs, please report it immediately.
Compound of 予見 (foresight) + 外 (outside) + 試験 (test) + 結果 (result), literally 'result outside foreseen test'. The exact derivation is uncertain; it appears to be a technical coinage in computing.