Revert "tests: reorganize unit tests into subdirectories mirroring source modules" (#10437)

.github/workflows/py-tests.yml

@@ -73,7 +73,7 @@ jobs:
       - name: Install Python dependencies using Poetry
         run: poetry install --with dev,test,runtime
       - name: Run Windows unit tests
-        run: poetry run pytest -svv tests/unit/runtime/utils/test_windows_bash.py
+        run: poetry run pytest -svv tests/unit/test_windows_bash.py
         env:
           PYTHONPATH: ".;$env:PYTHONPATH"
           DEBUG: "1"

tests/unit/README.md

@@ -11,19 +11,19 @@ poetry run pytest ./tests/unit
 Run specific test file:
 
 ```bash
-poetry run pytest ./tests/unit/llm/test_llm_fncall_converter.py
+poetry run pytest ./tests/unit/test_llm_fncall_converter.py
 ```
 
 Run specific unit test
 
 ```bash
-poetry run pytest ./tests/unit/llm/test_llm_fncall_converter.py::test_convert_tool_call_to_string
+poetry run pytest ./tests/unit/test_llm_fncall_converter.py::test_convert_tool_call_to_string
 ```
 
 For a more verbose output, to above calls the `-v` flag can be used (even more verbose: `-vv` and `-vvv`):
 
 ```bash
-poetry run pytest -v ./tests/unit/llm/test_llm_fncall_converter.py
+poetry run pytest -v ./tests/unit/test_llm_fncall_converter.py
 ```
 
 More details see [pytest doc](https://docs.pytest.org/en/latest/contents.html)