LLD - Design — Splitwise (Expense Sharing)
Why does Splitwise emphasize testing edge cases in its financial logic, such as zero balances or simultaneous transactions?
Why does Splitwise emphasize testing edge cases in its financial logic, such as zero balances or simultaneous transactions?
hard🧠 Conceptual Q10 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand the role of edge cases in testing
Edge cases test unusual or extreme conditions that can cause bugs.Step 2: Recognize that catching bugs in edge cases prevents user trust issues
Financial apps must be reliable even in rare scenarios.Final Answer:
Because edge cases often reveal hidden bugs that affect user trust -> Option CQuick Check:
Edge cases catch bugs = Because edge cases often reveal hidden bugs that affect user trust [OK]
Quick Trick: Test edge cases to catch hidden bugs and build trust [OK]
Common Mistakes:
MISTAKES- Confusing edge case testing with UI or performance improvements
- Assuming edge cases affect unrelated app features
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