[Use Ingredient] App crashes when inputting invalid quantity

[imaginarys96]

Description

App crashes when inputting invalid quantity when running the use i command

Steps to Reproduce

1. Add an ingredient by running add i/veg,2,pc
2. Run an invalid use i command : use i/veg,--2,pc
3. The app will crash

Actual Output

Expected Output

The app should handle the input --2 correctly and not crash.

[nus-pe-bot]

Team's Response

Indeed, we should have thrown an error when string is given. Fixing "master" bug will fix this duplicate.

The 'Original' Bug

[The team marked this bug as a duplicate of the following bug]

[Add Ingredient] App crashes when inputting invalid quantity

Description

App crashes when running the add i command with invalid quantity

Steps to Reproduce

1. Run the app
2. Run the command add i/veg,--2,pc
3. The app will crash

Actual Output

Expected Output

The app should not crash and should handle invalid input correctly

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_{[original: nus-cs2113-AY2324S1/pe-interim#1024] [original labels: type.FunctionalityBug severity.Low]}

Their Response to the 'Original' Bug

[This is the team's response to the above 'original' bug]

We accept this bug and should have thrown an error when string is given.

Items for the Tester to Verify

❓ Issue duplicate status

Team chose to mark this issue as a duplicate of another issue (as explained in the Team's response above)

• I disagree

Reason for disagreement: [replace this with your explanation]

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