Fix try_number shown in the task?task_id=&dag_id=&execution_date= (#…

…32361)

* try_number fix

* change test name

(cherry picked from commit a8e4b8a)

airflow/www/views.py

@@ -1721,7 +1721,8 @@ def task(self, session: Session = NEW_SESSION):
             with warnings.catch_warnings():
                 warnings.simplefilter("ignore", RemovedInAirflow3Warning)
                 all_ti_attrs = (
-                    (name, getattr(ti, name))
+                    # fetching the value of _try_number to be shown under name try_number in UI
+                    (name, getattr(ti, "_try_number" if name == "try_number" else name))
                     for name in dir(ti)
                     if not name.startswith("_") and name not in ti_attrs_to_skip
                 )

tests/www/views/test_views_tasks.py

@@ -323,6 +323,15 @@ def test_views_get(admin_client, url, contents):
         check_content_in_response(content, resp)
 
 
+def test_rendered_task_view(admin_client):
+    url = f"task?task_id=runme_0&dag_id=example_bash_operator&execution_date={DEFAULT_VAL}"
+    resp = admin_client.get(url, follow_redirects=True)
+    resp_html = resp.data.decode("utf-8")
+    assert resp.status_code == 200
+    assert "<td>_try_number</td>" not in resp_html
+    assert "<td>try_number</td>" in resp_html
+
+
 def test_rendered_k8s(admin_client):
     url = f"rendered-k8s?task_id=runme_0&dag_id=example_bash_operator&execution_date={DEFAULT_VAL}"
     with unittest.mock.patch.object(settings, "IS_K8S_OR_K8SCELERY_EXECUTOR", True):