test : add unit tests for rag_service

[tmdeveloper007]

Summary of What Needs to be Done:
The rag_service handles RAG (Retrieval Augmented Generation) but has no test file. Need tests for context retrieval and generation.

Changes that Need to be Made:

• Create backend/tests/test_rag_service.py
• Add tests for core functionality
• Test edge cases and error handling

Impact that it would Provide:

• Improve test coverage for services
• Prevent regression in service functionality
• Verify service logic works correctly

Please assign this issue to me so I can implement it.

[tmdeveloper007]

Hi, I would like to work on this issue. Please assign it to me.

[ritesh-1918]

Hi @tmdeveloper007! 🙌

Thank you so much for your active interest and engagement with this open task: "test : add unit tests for rag_service"! 🚀

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Ritesh is actively reviewing and will be merging PRs very soon. Let's build something amazing! 💻🔥

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