[Backend] Add test cases for new endpoints

[djeck1432]

🚨 Attention: Please read the guidelines before applying; otherwise, you will be ignored. 🚫📋
0. Please, join the telegram group to keep in touch https://t.me/+m0IGRiBvLtsyMzIy

1. Read guideline here
2. In your application should be telegram handler to contact you and ETA ( ETA > 24 hours won't be considered at all)
   3.add Positive and negative scenarios for this endpoint.
3. Please add test cases to appropriate test files

• Add deposit
• Withdraw all

[mexes20]

Can I be assigned to work on this Ser. I like strawberry.

Tg: Ledemsy

ETA: 12 hrs

[Birdmannn]

Can I start working on this? I like strawberry, tg: @lemonade46

[djeck1432]

@Birdmannn @mexes20 sorry, forgot to add label, UNREWARDED

[djeck1432]

@mexes20 as far as you new contributor I can assign it to you, but this issue is unrewarded, is it okay for you?

[obacollins-lab]

May I be assigned to this?
"I like strawberry."
Telegram handle : @Djjaiye

[mexes20]

@mexes20 as far as you new contributor I can assign it to you, but this issue is unrewarded, is it okay for you?

@djeck1432 Yes it is, but if a new rewarded task comes up after this, will I still be able to apply as a new contributor ser?

[Supa-mega]

I'd be happy to do this.first time contributor with good knowledge in javascript , cairo and python

[3th-Enjay]

Is this issue still available?