[TESTING] Write Unit Tests for Invoice Token Allowance Expirations

[chizzy192]

[TESTING] Issue

Metadata

Field	Value
Domain	Testing
Difficulty	Medium (4 Days)
Effort Estimate	effort: 7h
Priority	P2-Medium
Labels	enhancement
Target Branch	dev
Depends On	None

🎯 Context & Goal

Comprehensive test coverage is mandatory for smart contract security.

This issue adds tests in contracts/invoice-token within test.rs to validate behavior under edge cases and unexpected inputs.

Ensuring robust test coverage prevents regression bugs during contract upgrades.

📂 Target Files

• contracts/invoice-token/src/test.rs → test_runner

📋 Implementation Tasks

• Task 1: Write test functions in contracts/invoice-token/src/test.rs.
• Task 2: Assert proper error code emissions on failure paths.
• Task 3: Verify state storage persistence after execution.
• Task 4: Ensure all workspace tests pass with cargo test --all.

🛠️ Technical Guidance

#[test]
fn test_contract_scenario() {
    let env = Env::default();
    // Test logic here
}

🔗 References & Related

• Test file: contracts/invoice-token/src/test.rs

⏳ Delivery Window

This issue should be completed within 4 day(s) of assignment.

Contribution Workflow

1. Branch off dev: git checkout -b feature/issue-implementation dev
2. Implement all tasks in the checklist above.
3. Run all CI checks locally (see DEVELOPMENT.md).
4. Open a Pull Request targeting dev.
5. Link this issue in your PR description.

✅ Acceptance Criteria

• All implementation tasks above are completed cleanly.
• Code compiles without warnings or errors.
• All existing tests continue to pass.
• New unit tests cover all modified code paths.
• PR strictly targets the dev branch.
• Code follows project style guidelines (cargo fmt and cargo clippy).

[zinodict121]

@zinodict121 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

I would like to work on this issue, please assign it to me.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @zinodict121 to this issue.

[emarkees]

@emarkees has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi, I would love to work on this issue, I will help you write test cases

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

[Olasunkanmi975]

@Olasunkanmi975 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Experienced in analyzing complex workflows, managing file system APIs, and implementing rigorous error-handling mechanisms to prevent system exploits or crashes.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Olasunkanmi975 to this issue.

[nekwasar]

@nekwasar has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi, can I work on this issue

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

[drips-wave]

Congratulations, @nekwasar! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @nekwasar: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

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🌊 Happy Wave 🌊

[drips-wave]

This issue has been completed by @nekwasar as part of the Stellar Wave Program's 7th Wave 🥳

😎 @nekwasar: You earned 200 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

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