test(core): add unit tests for split function

[dylancavalcante]

SUMMARY

Adds unit tests for the split utility function located in superset/utils/core.py.

The test suite includes both black-box and white-box test cases to validate expected behavior and exercise key execution paths of the function.

Black-box tests cover:

• Empty string input
• Leading delimiter
• Trailing delimiter
• Delimiter-only string
• Nested parentheses

White-box tests cover:

• Delimiter found branch
• Delimiter not found branch
• Parentheses handling branch
• Escaped quote handling branch

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Not applicable.

TESTING INSTRUCTIONS

Run:

pytest --noconftest tests/unit_tests/utils/test_split.py -v

Expected result:

9 passed

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration
• Introduces new feature or API
• Removes existing feature or API

[bito-code-review]

Code Review Agent Run #9e8416

Actionable Suggestions - 0

Review Details

• Files reviewed - 1 · Commit Range: b2c4105..b2c4105

  • tests/unit_tests/utils/test_split.py
• Files skipped - 0
• Tools

  • Whispers (Secret Scanner) - ✔︎ Successful
  • Detect-secrets (Secret Scanner) - ✔︎ Successful
  • MyPy (Static Code Analysis) - ✔︎ Successful
  • Astral Ruff (Static Code Analysis) - ✔︎ Successful

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