perf: Add comprehensive tests and optimize diffArrayCompareKey #51
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Added a new test suite for diffArrayCompareKey covering various scenarios, including nested structures, edge cases, and option handling. Refactored diffArrayCompareKey for better performance and maintainability by introducing helper functions, optimizing object matching with compareKey, and improving validation logic. The changes enhance correctness, efficiency, and test coverage.
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Summary of Changes
Hello @zqy1151215064, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request introduces a new test suite and refactors the diffArrayCompareKey function to improve its performance, maintainability, and test coverage. The changes include the addition of helper functions, optimized object matching, and enhanced validation logic, resulting in a more robust and efficient diffing algorithm.
Highlights
- Test Suite: Added a comprehensive test suite for
diffArrayCompareKey, covering various scenarios including nested structures, edge cases, and option handling. This significantly improves the test coverage and reliability of the function. - Refactoring: Refactored
diffArrayCompareKeyfor better performance and maintainability. This includes introducing helper functions (isObjectWithCompareKey,createFormattedLine,processMatchedObjects,validateArrayForCompareKey,processRemovedItems,processAddedItems), optimizing object matching withcompareKey, and improving validation logic. - Performance Optimization: Improved the performance of
diffArrayCompareKeyby using a map-based lookup for larger arrays and optimizing the validation process. This reduces the time complexity for matching objects bycompareKey. - Validation: Enhanced validation logic to handle various edge cases, such as arrays with mixed object and non-object items, objects without
compareKey, and duplicatecompareKeyvalues. This ensures that the function gracefully falls back todiffArrayNormalwhen appropriate.
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Code Review
This pull request introduces a comprehensive test suite and significantly refactors diffArrayCompareKey for better performance and maintainability. The use of helper functions and the map-based optimization for object matching are great improvements. My feedback focuses on further enhancing the code by removing some dead code, simplifying a function signature for clarity, ensuring all comments are in English for broader accessibility, and pointing out a potential performance improvement related to array concatenation inside a loop.
Improved performance in diffing arrays of objects by batching concatenations and simplifying the validation function for compareKey. Updated comments in tests for clarity and replaced Chinese with English. The validation function now returns a boolean, streamlining the recursive diff logic.
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I just suspect handling this much edge case causes some issue about original compare by key method. I mean in my case I had to went through dozens of JSON objects to validate the compare by key logic works properly. Please consider using several different JSON objects to compare and be sure the output is not corrupted. |
Introduces comprehensive tests to validate diffArrayCompareKey with large arrays, mixed operations, and diverse JSON object structures. These tests ensure correct handling, performance, and structural integrity under various scenarios.
@utkuakyuz Oh totally! Yeah I was paranoid about breaking the main logic too while adding all these optimizations 😅 Threw in some stress tests with 1k objects and different JSON shapes - seems to hold up fine (~240ms, proper diffs). Your point about testing diverse objects was smart, that's exactly what I needed to verify. Appreciate you keeping an eye on this! |
Increased the size and complexity of arrays in the performance test to better simulate real-world scenarios. Refactored the JSON structure test to use a single complex object type, updated modification/addition/removal checks, and improved clarity of test assertions.
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2 participants
Added a new test suite for diffArrayCompareKey covering various scenarios, including nested structures, edge cases, and option handling. Refactored diffArrayCompareKey for better performance and maintainability by introducing helper functions, optimizing object matching with compareKey, and improving validation logic. The changes enhance correctness, efficiency, and test coverage.