Don’t Just Test the Happy Path
When building a feature, it’s easy to test only what should happen.
User enters the correct details → it works.
But real users won’t always follow the expected path.
What happens when:
The input is empty?
The user clicks the button twice?
The network fails?
The API returns an unexpected response?
* The user submits the same request again?
These cases are where many bugs hide.
One habit I’m trying to build is asking:
“What can the user do that I didn’t expect?”
Testing the happy path tells you that your feature works.
Testing the edge cases tells you how reliable it really is.
What’s one edge case that has surprised you in a project?
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