[CORRUPTED] Synthetic Benchmark PR #29927 - chore: add some tests case code

[tomerqodo]

Benchmark PR langgenius#29927

Type: Corrupted (contains bugs)

Original PR Title: chore: add some tests case code
Original PR Description: ## Checklist

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods

Original PR URL: langgenius#29927