The False Sense of Coverage

Code coverage says 95%. The team celebrates. But when a real user clicks through,Half the flows break. Why? – Coverage measures lines of code, not scenarios....

Noor E Arafin Rafi

April 4, 20261 min read

Code coverage says 95%.
The team celebrates.

But when a real user clicks through,
Half the flows break.

Why?

– Coverage measures lines of code, not scenarios.
– The “happy path” is fine.
– The “real world” is not.

Lesson:

– Coverage is not confidence.
– Coverage is only a number.

✔Test user journeys
✔ Focus on critical flows
✔ Don’t worship percentages

👉 Do you think coverage is overrated?

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