test: add comprehensive tests for multi-outcome markets

[greatest0fallt1me]

Description:

Write comprehensive test cases for multi-outcome market creation, betting, resolution, and payouts.

Requirements and Context:

• Must achieve minimum 95% test coverage
• Should test creation with 2, 3, and N outcomes
• Should test valid and invalid outcome selection in bets
• Should test payout calculation for single winner and tie/split
• Should test backward compatibility with binary markets
• Should test edge cases (one outcome has no bets, all same outcome)

Suggested Execution:

1. Fork the repo and create a branch

   git checkout -b test/multi-outcome-markets-tests

2. Implement changes

   • Write tests: src/test.rs (multi-outcome tests)
   • Add edge case and integration tests; validate test coverage

3. Test and commit

   • Run tests with coverage; include test output

Example Commit Message:

test: add comprehensive tests for multi-outcome markets

Guidelines:

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

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[Georgechisom]

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[Mac-5]

@Mac-5 has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

Hello maintainer, i am a software developer and i would love to work on this issue

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[Sobilo34]

@Sobilo34 has applied to work on this issue as part of the Stellar Wave Program's 1st wave.

Hi! Sobil is here

As a Web3 software engineer with experince in building full start blockchain products, both smart contract and frontend integration. I will do this project if it is assigned to me.

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Congratulations, @Mac-5! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on January 31, 2026.

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