# Review Comment

- **Author:** coderabbitai[bot]
- **File:** `tests/test_version.py`
- **Line:** 123
- **Date:** 2026-02-07
- **Comment ID:** 2777124709
- **URL:** https://github.com/donghaozhang/video-agent-skill/pull/20#discussion_r2777124709

---

_⚠️ Potential issue_ | _🟠 Major_

**Add type hints and Google‑style docstrings to test helpers and methods.**

Test helpers and public test methods are missing required type hints and docstring sections (Args/Returns/Cost/Example). Please apply the format consistently across this file.

<details>
<summary>✅ Example pattern to apply</summary>

```diff
-def _read_version_from_version_py():
-    """Read __version__ from _version.py by parsing text."""
+def _read_version_from_version_py() -> str:
+    """Read __version__ from _version.py by parsing text.
+
+    Args:
+        None.
+
+    Returns:
+        str: Parsed version string.
+
+    Cost:
+        None.
+
+    Example:
+        >>> _read_version_from_version_py()
+        "1.0.20"
+    """
     version_file = (
         PROJECT_ROOT
         / "packages"
         / "core"
         / "ai_content_pipeline"
         / "ai_content_pipeline"
         / "_version.py"
     )
@@
-    def test_version_file_exists(self):
-        """_version.py must exist at the expected path."""
+    def test_version_file_exists(self) -> None:
+        """_version.py must exist at the expected path.
+
+        Args:
+            self: Test case instance.
+
+        Returns:
+            None.
+
+        Cost:
+            None.
+
+        Example:
+            >>> TestVersionSingleSource().test_version_file_exists()
+        """
         version_file = (
             PROJECT_ROOT
             / "packages"
             / "core"
             / "ai_content_pipeline"
             / "ai_content_pipeline"
             / "_version.py"
         )
```
</details>
As per coding guidelines, All public methods in generator classes and test files must include type hints for parameters and return values; All public methods should include docstrings with Args, Returns, Cost information, and Example sections; Write docstrings for every function using Google style format.

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In `@tests/test_version.py` around lines 22 - 123, The tests lack type annotations
and Google-style docstrings for the helper functions and public test methods;
update _read_version_from_version_py() and _read_version_from_setup_py() to
include proper type hints (e.g., -> str) and add Google-style docstrings with
Args/Returns/Cost/Example sections, and add equivalent type hints and docstrings
to each public test method in TestVersionSingleSource (test_version_file_exists,
test_version_is_valid_pep440, test_init_imports_from_version_py,
test_setup_py_reads_from_version_py, test_package_version_matches,
test_version_not_placeholder); keep behavior unchanged, only add annotations and
docstrings, and ensure imports (typing) are added if needed.
```

</details>

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