Unclear exception message when user keys in negative numbers for price

[soongensayo]

Perhaps, it would be better to let the user know what exactly is wrong with the input e.g. "no negative numbers for price allowed"

[nus-se-bot]

Team's Response

We interpret the dash "-" as a delimiter used to indicate extra parameters so we intentionally chose to display an error message for extra parameters instead of negative numbers.

Items for the Tester to Verify

:question: Issue response

Team chose [response.Rejected]

• [ ] I disagree

Reason for disagreement: [replace this with your explanation]

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