QamoosTech
Testing & QualityIntermediate

Edge Case

PronunciationEJ KAYS

Definition

An unusual situation at the limits of normal use, such as an empty list, a very long name, or a negative number.

Where you hear it

Code reviews and test planning.

Examples

  • What happens in the edge case where the cart is empty?
  • The function crashes on an edge case with zero items.

Common mistake

Testing only the happy path. Many production bugs come from edge cases.