`delete` Command insufficient Error Message for Extra Parameters*

[bbryant824]

Bug Report: delete Command insufficient Error Message for Extra Parameters

Title: delete command fails to handle extra parameters correctly and provides unhelpful error message.

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Steps to Reproduce

1. Launch LegacyLink.
2. Enter the command:
   delete 1 1

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Expected Behavior

• The application should detect the extra parameter and display a clear, specific error message, such as:
  "Invalid command format! The delete command accepts only one parameter: delete INDEX."
• The command should only accept a single integer as the index, with no additional spaces between the integers.

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Actual Behavior

• The application shows a generic error message:
  ' delete: Deletes the person identified by the index number used in the displayed person list.
  Parameters: INDEX (must be a positive integer)
  Example: delete 1`

• The error message does not explicitly point out the issue of having extra parameters, leaving the user unclear about what went wrong.

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Severity

severity.Low

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Type

type.FunctionalityBug

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Why This Is a Problem

• Ambiguous Error Feedback: The current error message does not explain that the command failed due to extra parameters, leading to user confusion.
• Command Format Integrity: The delete command should strictly enforce the rule of accepting only one integer parameter with no spaces or additional inputs.
• User Frustration: Users may struggle to identify the cause of the error, especially if they accidentally include extra spaces or numbers.

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Suggestions for Improvement

1. Enhance error message clarity to explicitly state that extra parameters are not allowed. For example:
   "Invalid command format! The delete command accepts only one parameter: delete INDEX."
2. Implement stricter validation to ensure the command format only accepts a single integer with no additional spaces or parameters.
3. Add test cases to ensure the error handling logic properly identifies and responds to commands with extra parameters.

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