kaxil commented on a change in pull request #15795:
URL: https://github.com/apache/airflow/pull/15795#discussion_r636307278
##########
File path: docs/apache-airflow/howto/connection.rst
##########
@@ -360,6 +364,24 @@ In addition to retrieving connections from environment
variables or the metastor
an secrets backend to retrieve connections. For more details see
:doc:`/security/secrets/secrets-backend/index`.
+Test Connections
+----------------
+
+Airflow Web UI & API allows to test connections. The test connection feature
can be used from
+:ref:`create <creating_connection_ui>` or :ref:`edit <editing_connection_ui>`
connection page, or through calling
+:doc:`Connections REST API </stable-rest-api-ref/>`.
+
+To test a connection Airflow calls out the test_connection method from the
associated hook class and reports the
+results of it. It may happen that the connection type does not have any
associated hook or the hook doesn't have the
+test_connection method implementation, in either case the error message will
throw the proper error message.
Review comment:
```suggestion
``test_connection`` method implementation, in either case the error message
will throw the proper error message.
```
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