Testcase 강화.

**Is your feature request related to a problem? Please describe.**
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현재 testcaseDev 브랜치에 주석된 테스트 케이스들이 존재 합니다

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테스트케이스와 예상되는 결과가 올바른지 확인하는것과 여기에 맞춰서 코드들을 수정하는 부분이 필요합니다.

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또한 하단에 추가적인 테스트용 url 을 첨부합니다.

Look at the testcaseDev branch for commented-out test cases. Review the test URLs provided in the issue to understand expected behavior. Run existing tests to see what passes, then uncomment and verify each test case, adjusting the code in the main project as needed.

索引モデルが issue の本文から書いたものです。