amoghrajesh opened a new pull request, #54261:
URL: https://github.com/apache/airflow/pull/54261

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   ### Why?
   While working on https://github.com/apache/airflow/pull/54083, I happened to 
notice that the kube system tests started failing with:
   ```
   ../task-sdk/src/airflow/sdk/bases/operator.py:403: in wrapper
       return func(self, *args, **kwargs)
   
../providers/cncf/kubernetes/src/airflow/providers/cncf/kubernetes/operators/pod.py:642:
 in execute
       return self.execute_sync(context)
   
../providers/cncf/kubernetes/src/airflow/providers/cncf/kubernetes/operators/pod.py:650:
 in execute_sync
       self.pod_request_obj = self.build_pod_request_obj(context)
   
../providers/cncf/kubernetes/src/airflow/providers/cncf/kubernetes/operators/pod.py:1289:
 in build_pod_request_obj
       "airflow_kpo_in_cluster": str(self.hook.is_in_cluster),
   
../providers/cncf/kubernetes/src/airflow/providers/cncf/kubernetes/hooks/kubernetes.py:307:
 in is_in_cluster
       self.api_client  # so we can determine if we are in_cluster or not
   /opt/hostedtoolcache/Python/3.10.18/x64/lib/python3.10/functools.py:981: in 
__get__
       val = self.func(instance)
   
../providers/cncf/kubernetes/src/airflow/providers/cncf/kubernetes/hooks/kubernetes.py:315:
 in api_client
       return self.get_conn()
   
../providers/cncf/kubernetes/src/airflow/providers/cncf/kubernetes/hooks/kubernetes.py:215:
 in get_conn
       in_cluster = self._coalesce_param(self.in_cluster, 
self._get_field("in_cluster"))
   
../providers/cncf/kubernetes/src/airflow/providers/cncf/kubernetes/hooks/kubernetes.py:208:
 in _get_field
       if field_name in self.conn_extras:
   /opt/hostedtoolcache/Python/3.10.18/x64/lib/python3.10/functools.py:981: in 
__get__
       val = self.func(instance)
   
../providers/cncf/kubernetes/src/airflow/providers/cncf/kubernetes/hooks/kubernetes.py:189:
 in conn_extras
       connection = self.get_connection(self.conn_id)
   
../providers/cncf/kubernetes/src/airflow/providers/cncf/kubernetes/hooks/kubernetes.py:180:
 in get_connection
       return super().get_connection(conn_id)  # type: ignore[return-value]
   ../task-sdk/src/airflow/sdk/bases/hook.py:61: in get_connection
       conn = Connection.get(conn_id)
   ../task-sdk/src/airflow/sdk/definitions/connection.py:154: in get
       return _get_connection(conn_id)
   ```
   
   The reason for this is that those tests used a mock on `get_connection` 
which is mid-way to the entire flow of getting a connection (models connection 
had an internal `get_connection` defined on connection backends and this test 
was bypassing it). The current `mock_get_connection` fixture uses `mock.patch` 
to return a minimal `Connection` object with only `conn_id` set. 
   
   A better OR more complete pattern would be to actual create the connection 
using env vars on the host machine as part of the test setup that runs, that 
would ensure that no unneccessary mocking is performed and Connection retrieval 
flow works normally (backend > env > api server)
   
   
   <!-- Please keep an empty line above the dashes. -->
   ---
   **^ Add meaningful description above**
   Read the **[Pull Request 
Guidelines](https://github.com/apache/airflow/blob/main/contributing-docs/05_pull_requests.rst#pull-request-guidelines)**
 for more information.
   In case of fundamental code changes, an Airflow Improvement Proposal 
([AIP](https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+Improvement+Proposals))
 is needed.
   In case of a new dependency, check compliance with the [ASF 3rd Party 
License Policy](https://www.apache.org/legal/resolved.html#category-x).
   In case of backwards incompatible changes please leave a note in a 
newsfragment file, named `{pr_number}.significant.rst` or 
`{issue_number}.significant.rst`, in 
[airflow-core/newsfragments](https://github.com/apache/airflow/tree/main/airflow-core/newsfragments).
   


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