# What does this PR do?
A _bunch_ on cleanup for the Responses tests.
- Got rid of YAML test cases, moved them to just use simple pydantic models
- Splitting the large monolithic test file into multiple focused test files:
- `test_basic_responses.py` for basic and image response tests
- `test_tool_responses.py` for tool-related tests
- `test_file_search.py` for file search specific tests
- Adding a `StreamingValidator` helper class to standardize streaming response validation
## Test Plan
Run the tests:
```
pytest -s -v tests/integration/non_ci/responses/ \
--stack-config=starter \
--text-model openai/gpt-4o \
--embedding-model=sentence-transformers/all-MiniLM-L6-v2 \
-k "client_with_models"
```
