QA · Junior · Coding

There's a function is_valid_password: it takes a string and returns true or false. A password is valid if it has 8 to 20 characters, at least one digit, and at least one uppercase Latin letter. You don't have the function's code; write a set of automated tests for it.

~15 min by voice

How to approach it

They're checking black-box test design without access to the code: whether you can identify equivalence classes and boundary values, build negative cases that each break exactly one rule, clarify ambiguous requirements, and write the tests up neatly.

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test design boundary values

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Answer by voice

The interviewer will ask this question and listen. Think out loud and ask for a hint if you need one. When you're done, pause or tap “That's my answer”. In about a minute, your score and the points you covered show up here.

Best with headphones · ~15 min