Julienne Neh-Awah’s Post

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Test Manager | Quality Assurance Engineer | Quality Guardian | Your Last Line of Defense Against Production Nightmares

Testing stories and lessons learned. My friend Jackie still laughs about this story, but it wasn't funny at the time. Jackie was so proud of their "comprehensive" test suite. I mean, this thing had about 2,500+ tests with 97% code coverage. She used to brag about it each time I asked about work. Then, one faithful morning, their entire platform went down for 6 hours, and guess what their amazing test suite caught? Absolutely everything, but the bug that took down their platform. Turns out they had what she now calls "The Great Test Coverage Illusion." Sure, they had 97% code coverage, but they had a very low business scenario coverage. The bug was a memory leak that only happened when you had concurrent user sessions. All their tests were running isolated, single user scenarios. They never for once tested what happens when 1,000+ users are all doing different things at the same time. That was their big wake-up call. They realized coverage metrics only measure code execution, not business risk. They completely flipped their testing mindset from "Did we test every line of code?" to "Did we test every way the business can lose money?" She now calls it their Business Risk Testing revolution. Instead of obsessing over code coverage percentages, they started focusing on revenue impacting failure scenarios. Instead of individual component testing, they shifted to system interaction under realistic load. Instead of feature completeness validation, they prioritized user journey success under pressure. The results were incredible. Before the shift, they had 2,500+ tests, 6 hour outages, and angry customers. After the framework change, they had 847 targeted tests, 99.9% uptime, and happy users. That's about 60% fewer tests but 80% fewer production issues. She and her team learned the hard way that comprehensive testing isn't about testing everything. It's about testing everything that actually matters to keeping the business running. What's your biggest "comprehensive testing" blind spot story? #TestCoverage #ProductionIssues #TestStrategy #BusinessRiskTesting

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