fix: check the correctness of the leaf ranges

[rach-id]

Overview

Closes: #267

Summary by CodeRabbit

• New Features

  • Strengthened error handling for subtree root verification and leaf range calculations to improve robustness against invalid inputs.

• Bug Fixes

  • Enhanced validation processes to prevent incorrect operations and ensure reliable range processing.

• Tests

  • Refined test cases to focus on relevant scenarios and added new tests for improved coverage of edge cases related to error handling.

[coderabbitai]

Walkthrough

The updates enhance error handling in the VerifySubtreeRootInclusion and nextLeafRange functions, improving their robustness against invalid inputs. The test suite has been refined with new cases to stress test these functions, particularly focusing on edge cases that could lead to stack overflow errors. These changes ensure better reliability and stability in the code.

Changes

Files	Change Summary
proof.go, proof_test.go	Improved error handling in VerifySubtreeRootInclusion and nextLeafRange. Refined test cases to focus on error scenarios, including new checks for valid ranges and handling of edge cases.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant Proof
    participant Tree

    User->>Tree: Request subtree root inclusion verification
    Tree->>Proof: VerifySubtreeRootInclusion()
    alt Valid range
        Proof-->>User: Return success
    else Invalid range
        Proof-->>User: Return error
    end

Loading

Assessment against linked issues

Objective	Addressed	Explanation
Fix recursion bug in VerifySubtreeRootInclusion (267)	✅
Improve error handling for invalid ranges (267)	✅

🐰 "Hop along, my code so bright,
With checks and tests, it's a delight!
No more stack overflow to fear,
Robust and ready, let's all cheer!
In every leaf, in every root,
Together we code, oh what a hoot!" 🌟

---

Thank you for using CodeRabbit. We offer it for free to the OSS community and would appreciate your support in helping us grow. If you find it useful, would you consider giving us a shout-out on your favorite social media?

Share

• X
• Mastodon
• Reddit
• LinkedIn

Tips

Chat

There are 3 ways to chat with CodeRabbit:

• Review comments: Directly reply to a review comment made by CodeRabbit. Example:
  • I pushed a fix in commit <commit_id>.
  • Generate unit testing code for this file.
  • Open a follow-up GitHub issue for this discussion.
• Files and specific lines of code (under the "Files changed" tab): Tag @coderabbitai in a new review comment at the desired location with your query. Examples:
  • @coderabbitai generate unit testing code for this file.
  • @coderabbitai modularize this function.
• PR comments: Tag @coderabbitai in a new PR comment to ask questions about the PR branch. For the best results, please provide a very specific query, as very limited context is provided in this mode. Examples:
  • @coderabbitai generate interesting stats about this repository and render them as a table.
  • @coderabbitai show all the console.log statements in this repository.
  • @coderabbitai read src/utils.ts and generate unit testing code.
  • @coderabbitai read the files in the src/scheduler package and generate a class diagram using mermaid and a README in the markdown format.
  • @coderabbitai help me debug CodeRabbit configuration file.

Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments.

CodeRabbit Commands (invoked as PR comments)

• @coderabbitai pause to pause the reviews on a PR.
• @coderabbitai resume to resume the paused reviews.
• @coderabbitai review to trigger an incremental review. This is useful when automatic reviews are disabled for the repository.
• @coderabbitai full review to do a full review from scratch and review all the files again.
• @coderabbitai summary to regenerate the summary of the PR.
• @coderabbitai resolve resolve all the CodeRabbit review comments.
• @coderabbitai configuration to show the current CodeRabbit configuration for the repository.
• @coderabbitai help to get help.

Additionally, you can add @coderabbitai ignore anywhere in the PR description to prevent this PR from being reviewed.

CodeRabbit Configuration File (.coderabbit.yaml)

• You can programmatically configure CodeRabbit by adding a .coderabbit.yaml file to the root of your repository.
• Please see the configuration documentation for more information.
• If your editor has YAML language server enabled, you can add the path at the top of this file to enable auto-completion and validation: # yaml-language-server: $schema=https://coderabbit.ai/integrations/schema.v2.json

Documentation and Community

• Visit our Documentation for detailed information on how to use CodeRabbit.
• Join our Discord Community to get help, request features, and share feedback.
• Follow us on X/Twitter for updates and announcements.

[codecov]

Codecov Report

Attention: Patch coverage is 71.42857% with 2 lines in your changes missing coverage. Please review.

Project coverage is 68.01%. Comparing base (1278ba2) to head (1f103a3).

Files	Patch %	Lines
proof.go	71.42%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #268      +/-   ##
==========================================
+ Coverage   67.84%   68.01%   +0.16%     
==========================================
  Files           6        6              
  Lines        1132     1138       +6     
==========================================
+ Hits          768      774       +6     
  Misses        337      337              
  Partials       27       27              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[coderabbitai]

Actionable comments posted: 2

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 1278ba2 and 705050d.

Files selected for processing (2)

• proof.go (2 hunks)
• proof_test.go (5 hunks)

Additional context used

GitHub Check: codecov/patch

proof.go

[warning] 532-532: proof.go#L532
Added line #L532 was not covered by tests

Additional comments not posted (2)

proof_test.go (2)

1377-1406: Good addition of edge case tests.

The new test cases effectively cover scenarios where ranges do not reference any inner node, ensuring robust validation.

---

1843-1869: Good test case for preventing stack overflow.

The new test case effectively verifies the behavior of VerifySubtreeRootInclusion under conditions that could lead to a stack overflow, ensuring proper error handling.

[rootulp]

One question

[coderabbitai]

Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 705050d and 1f103a3.

Files selected for processing (1)

• proof_test.go (5 hunks)

Additional comments not posted (2)

proof_test.go (2)

1377-1406: LGTM! The new test cases are correctly implemented.

The new test cases for TestNextLeafRange properly handle ranges that do not reference any inner node and expect errors as intended.

---

1843-1869: LGTM! The new test case is correctly implemented.

The new test case for TestVerifySubtreeRootInclusion_infiniteRecursion ensures that the VerifySubtreeRootInclusion function does not cause a stack overflow and properly handles the error.