goransh-buh opened a new issue, #69595:
URL: https://github.com/apache/airflow/issues/69595
## Bug Report
### Description
Some functions do not validate their inputs before processing, which can
lead to confusing error messages or silent failures when unexpected values are
passed.
### Steps to Reproduce
1. Call the affected function with `None`, an empty string, or a negative
number
2. Observe that the error message is not helpful or the function silently
returns incorrect results
### Expected Behavior
Functions should validate inputs early and raise descriptive errors:
```python
def process(value):
if value is None:
raise ValueError("value must not be None")
if not isinstance(value, int):
raise TypeError(f"expected int, got {type(value).__name__}")
# ... rest of function
```
### Impact
This makes debugging harder for users of the library and can hide real bugs
upstream.
### Suggested Fix
Add input validation at the start of public-facing functions with clear
error messages.
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