Add Unit Tests for Argument Parser — Edge Cases

[Timi16]

Description

The argument parser currently has limited test coverage for edge cases. Add comprehensive unit tests covering boundary values, invalid inputs, and type coercion edge cases.

Requirements

• Test max and min values for all integer types (u32, i32, u64, i64)
• Test empty string and whitespace-only string inputs
• Test deeply nested Vec and Map structures
• Test invalid JSON (malformed, trailing commas, wrong brackets)
• Test null values in non-optional positions
• Target: 90%+ coverage of parse_args()

Suggested Execution

1. Branch: git checkout -b test/arg-parser-edge-cases
2. Open src/runtime/executor.rs (or parser.rs after refactor)
3. Add test module at bottom of file with #[cfg(test)]
4. Write tests for every edge case listed
5. Run cargo test and verify all pass
6. Commit: test: add edge case unit tests for argument parser

Acceptance Criteria

• Tests for all integer boundary values
• Tests for invalid JSON inputs
• Tests for deeply nested structures
• Tests for null in non-optional positions
• All tests pass
• Coverage of parse_args() reaches 90%+

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[Obiajulu-gif]

@Obiajulu-gif has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

My Oga on the top can I work on this issue

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[Awointa]

@Awointa has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

Hi maintainer 👋 I’d love to take on this issue.

I’ll add comprehensive unit tests for the argument parser, covering integer boundary values, invalid JSON inputs, deeply nested structures, and null handling in non-optional positions. I’ll ensure all tests pass and work toward achieving 90%+ coverage for parse_args().

Ready to get started — please assign it to me if available.

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[rocknwa]

@rocknwa has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

Hi team,

I’d like to take on Issue #283 – Add Unit Tests for Argument Parser (Edge Cases).

Plan:

• Add a dedicated #[cfg(test)] module covering all edge cases.
• Test integer boundaries: u32, i32, u64, i64 (min/max values).
• Validate empty and whitespace-only string inputs.
• Test deeply nested Vec and Map structures.
• Cover malformed JSON (trailing commas, wrong brackets, invalid tokens).
• Ensure null in non-optional fields is rejected.
• Verify correct type coercion and error paths.

Goal:

• 90%+ coverage of parse_args()
• All tests passing via cargo test

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

[DioChuks]

@DioChuks has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

I would like to work on this issue cos, i can update the argument parser which currently has limited test coverage for edge cases. I'll add comprehensive unit tests covering boundary values, invalid inputs, and type coercion edge cases. I'm also an active contributor to this project, would appreciate to tackle this.

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

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Congratulations, @DioChuks! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on February 26, 2026.

🧑‍💻 @DioChuks: 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.

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This issue has been completed by @DioChuks as part of the Stellar Wave Program's 2nd Wave 🥳

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