noun
unforeseen test outcome
Computing term for a test result that was not predicted or expected, often in software testing or quality assurance contexts.
予見外試験結果が発生した場合、直ちに報告してください。
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.