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🧪 [Testing Improvement] Add Robust Testing for ArrayList.pop#62

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void0x14 wants to merge 1 commit intomainfrom
fix/arraylist-pop-test-13352835598034884206
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🧪 [Testing Improvement] Add Robust Testing for ArrayList.pop#62
void0x14 wants to merge 1 commit intomainfrom
fix/arraylist-pop-test-13352835598034884206

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@void0x14
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🎯 What: This PR addresses the missing test coverage for ArrayList.pop within echo-core-zig/src/data/arraylist.zig. While the basic functionality had a simple test, there was no robust testing for the empty edge case, the list capacity, or handling of generic elements.

📊 Coverage: The test suite now explicitly checks for:

  • Correct Last-In-First-Out retrieval behavior with non-primitive types ([]const u8).
  • Stable capacity across pop operations.
  • Correctly returning null when a list is completely drained and .pop() is called.

Result: Test coverage for ArrayList is significantly improved. Refactoring this data structure can be done with much greater confidence, ensuring regressions do not occur in capacity tracking and generic type handling.


PR created automatically by Jules for task 13352835598034884206 started by @ulac000000

…acity preservation

Added a comprehensive test `ArrayList pop string slices and capacity check` to ensure that:
1. `pop` correctly returns elements from the end of the list.
2. `pop` handles complex generic types properly (like string slices `[]const u8`).
3. The capacity remains unaffected by popping.
4. Calling `pop` on an empty list safely returns `null` without crashing.

Co-authored-by: ulac000000 <132948319+ulac000000@users.noreply.github.com>
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