Testing · Junior · Question 9 of 78

What does the Arrange–Act–Assert (AAA) pattern describe?

✓Correct answer: Test structure: prepare data, perform the action, check the result
2The order in which test files are run
3Three kinds of assertions in Jest

Explanation

The same idea is called Given–When–Then in BDD. A clear structure makes tests easy to read and keeps each test focused on one behaviour.

Further reading

Martin Fowler: Given When Then ↗

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