ivanwakeup opened a new issue, #38944:
URL: https://github.com/apache/airflow/issues/38944
### What do you see as an issue?
The airflow Best Practices documentation page suggests using
`unittest.mock.patch` along with setting `os.environ` values to mock Variables
and Connections. This doesn't seem to work in practice (testing against airflow
2.8.1)--airflow attempts to read Variable values from variable table in DB
instead of using `os.environ` overrides.
### Solving the problem
example non-working code:
```
from unittest.mock import patch
from airflow.models import Variable
def test_variable_fetch():
with patch.dict('os.environ', AIRFLOW_VAR_my_test_var="my_test_value"):
print(Variable.get("my_test_var"))
```
### Anything else
https://airflow.apache.org/docs/apache-airflow/2.8.4/best-practices.html#mocking-variables-and-connections
- guide page in question
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
### Code of Conduct
- [X] I agree to follow this project's [Code of
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
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