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[ISSUE #520] 🐛Fix count_inner_msg_num method of message decoder mode #521

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merged 1 commit into from
Jun 13, 2024

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dream-cloud-fly
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@dream-cloud-fly dream-cloud-fly commented Jun 13, 2024

Which Issue(s) This PR Fixes(Closes)

Fixes #520

Brief Description

How Did You Test This Change?

Summary by CodeRabbit

  • Bug Fixes

    • Improved the logic for counting inner messages, ensuring accurate message size detection.
  • Tests

    • Updated test cases to reflect changes in message counting logic.

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coderabbitai bot commented Jun 13, 2024

Walkthrough

The key changes in rocketmq-common/src/common/message/message_decoder.rs involve improving the count_inner_msg_num function for accurate message counting by checking for remaining bytes instead of emptiness, ensuring proper evaluation of message sizes. Additionally, related test cases have been modified to align with the updated behavior.

Changes

File Change Summary
.../message_decoder.rs Updated count_inner_msg_num to check for bytes remaining instead of emptiness; adjusted tests to reflect new logic and expected message counts.

Assessment against linked issues

Objective Addressed Explanation
Fix count_inner_msg_num method of message decoder mode (#520)
Ensure accurate message counting in byte buffer by checking for remaining bytes (#520)

Poem

In bytes we trust, their count we must see,
With precious precision, this decoder's decree.
Not empty, but remaining, our logic now flows,
The messages within, like petals on rose.
Tests like a witness, now count one and all,
RocketMQ, standing strong, we'll never fall. 🚀🐇


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coderabbitai bot commented Jun 13, 2024

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Actionable comments posted: 1

Review details

Configuration used: .coderabbit.yaml
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 7b2276b and a8b35ed.

Files selected for processing (1)
  • rocketmq-common/src/common/message/message_decoder.rs (3 hunks)
Additional comments not posted (2)
rocketmq-common/src/common/message/message_decoder.rs (2)

288-289: The modification to the loop condition and the method of extracting the size from bytes are critical improvements for robustness.

Ensure that this change is well-tested, especially edge cases where the byte stream might be malformed or edge-padded.


311-313: The test cases have been updated to reflect the changes in the count_inner_msg_num function. However, it's important to ensure that these tests cover various scenarios.

Also applies to: 321-321

Verification successful

The search results indicate that there are multiple test cases for the count_inner_msg_num function, covering scenarios such as counting multiple messages, single messages, no messages, and ignoring incomplete messages. This suggests that various scenarios, including edge cases, are indeed covered in the test cases.

  • rocketmq-common/src/common/message/message_decoder.rs:
    • fn count_inner_msg_num_counts_correctly_for_multiple_messages()
    • fn count_inner_msg_num_counts_correctly_for_single_message()
    • fn count_inner_msg_num_counts_zero_for_no_messages()
    • fn count_inner_msg_num_ignores_incomplete_messages()
Scripts executed

The following scripts were executed for the analysis:


Script:

#!/bin/bash
# Description: Ensure the test cases cover various scenarios for message counting.

# Test: Search for test cases in the test file. Expect: Multiple scenarios including edge cases.
rg --type rust "fn count_inner_msg_num" "tests/"

Length of output: 95



Script:

#!/bin/bash
# Description: Ensure the test cases cover various scenarios for message counting.

# Test: Search for test cases in the entire repository. Expect: Multiple scenarios including edge cases.
rg --type rust "count_inner_msg_num" 

Length of output: 1220

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codecov bot commented Jun 13, 2024

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 25.37%. Comparing base (7b2276b) to head (a8b35ed).

Additional details and impacted files
@@           Coverage Diff           @@
##             main     #521   +/-   ##
=======================================
  Coverage   25.37%   25.37%           
=======================================
  Files         233      233           
  Lines       17014    17014           
=======================================
  Hits         4317     4317           
  Misses      12697    12697           

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

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mxsm commented Jun 13, 2024

@coderabbitai Approve

@mxsm mxsm merged commit fb2cde2 into mxsm:main Jun 13, 2024
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coderabbitai bot commented Jun 13, 2024

@mxsm, I'm approving the changes as requested.

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[Bug] Fix count_inner_msg_num method of message decoder mode
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