test: add comprehensive tests for whitelist and blacklist

[greatest0fallt1me]

Description:

Write comprehensive test cases for whitelist and blacklist enforcement.

Requirements and Context:

• Must achieve minimum 95% test coverage
• Should test whitelist: only listed users can bet
• Should test blacklist: listed users cannot bet
• Should test admin add/remove and enforcement
• Should test empty list (no restriction)
• Should test event-level vs global list if both exist

Suggested Execution:

1. Fork the repo and create a branch

   git checkout -b test/whitelist-blacklist-tests

2. Implement changes

   • Write tests: src/test.rs (whitelist/blacklist tests)
   • Validate test coverage

3. Test and commit

   • Run tests with coverage; include test output

Example Commit Message:

test: add comprehensive tests for whitelist and blacklist

Guidelines:

• Minimum 95 percent test coverage
• Clear documentation
• Timeframe: 48 hours

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[Georgechisom]

@Georgechisom has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

Hi, I love to work on this issue and deliver an excellent result, please help assign it to me.

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[victorisiguzoruzoma874]

@victorisiguzoruzoma874 has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

Hello maintainer, let me tackle this issue for you with speed just like starlink network 🙌😌🙌

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[anumukul]

@anumukul has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

Hi, I’d like to take this issue and can deliver a fix within 24 hours.
I’ve worked on similar projects before and have relevant experience, so I should be able to handle this efficiently.

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[Arowolokehinde]

@Arowolokehinde has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

can i work on this issue?
i have the required expertise needed to work on this issue. would get it done in less than 5 hours

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[codebestia]

@codebestia has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

Hello Maintainer
Can i work on this?
ETA - 4 hours

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[Sam-Rytech]

@Sam-Rytech has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

Please I’d like to build this access control test suite.

I'm a Full Stack SWE and I have experience testing hierarchical permission systems in Soroban contracts and can verify that the whitelist/blacklist enforcement is completely watertight across all betting entry points.

I will implement a 'Truth Table' test strategy to explicitly validate complex scenarios—such as a user being on a Global Whitelist but an Event Blacklist—ensuring the restrictive logic always takes precedence.

I’m available to start immediately. ETA: 5hrs

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Sam-Rytech to this issue.

[Yunusabdul38]

@Yunusabdul38 has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

Gm Am Yunus an full stack and a blockchain developer, have read the issue description and this match my skill set i will love to work on this and create a pr as soon as possible if am assigned this issue

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[Jagadeeshftw]

@Jagadeeshftw has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

I would like to work on this issue. eta -> 1 hour

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