Ten copies of the same test with different values is a maintenance problem. Loop over the data instead, and keep the failures readable.
A card validation suite can end up with eleven copies of the same test. Same steps every time, only the card number changes. When the error message is reworded, that is eleven blocks to edit, and one will be missed.
The fix is to describe the cases as data, and let one test body handle all of them.
Start with the cases in a plain array:
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