API Testing · Junior · Question 37 of 75

What do you test by sending `"age": "twenty"` instead of a number?

1That the API validates data types
2That the API translates text to numbers
3That the API ignores unknown fields

Show the answer

Correct answer: That the API validates data types

Explanation

Type checks catch bugs where strings are stored as numbers or crash the server. The expected answer is a 400 or 422 with a message.

Further reading

JSON Schema ↗

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