Why sometimes exhaustive testing is easier than pairwise testing?

General Tech QA/Testing 3 years ago

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manpreet Tuteehub forum best answer Best Answer 3 years ago

Consider a function with 4 parameters, each with 2 options = 16 combinations testing ALL possible combinations. But 24 with pairwise testing - how come? It would be hence more difficult to test pairs (which does not reveal - in context of software testing - problems caused by interaction of 3 variables) than ALL combinations.

Or the advantage is that with covering or orthogonal arrays, these pairs can be arranged so that fewer runs are needed?

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