Design comprehensive OA test cases
Hudson River TradingSoftware Engineer · Technical Screen
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This question assesses a software engineer's practical test design skills under time pressure, specifically the ability to partition input spaces into equivalence classes and boundary cases for algorithm and data structure problems. It evaluates systematic testing methodology, including oracle-based verification strategies and defensible stopping rules — competencies commonly probed in online assessments and technical interviews to gauge engineering rigor.
When an online assessment provides very few sample tests and asks you to write your own, how would you design a comprehensive set of test cases? Outline a repeatable checklist of edge-case categories, how you quickly generate inputs and expected outputs, how you compare against an auto-generated reference answer (oracle), and how you decide coverage is sufficient (e.g., after 5–10 cases).
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