[GitHub] [airflow] Bowrna commented on a diff in pull request #23870: DAG regex flag in backfill command

[GitBox <gi...@apache.org>]

Bowrna commented on code in PR #23870:
URL: https://github.com/apache/airflow/pull/23870#discussion_r890239143


##########
tests/cli/commands/test_dag_command.py:
##########
@@ -176,6 +176,33 @@ def test_backfill(self, mock_run):
         )
         mock_run.reset_mock()
 
+        with contextlib.redirect_stdout(io.StringIO()) as stdout:
+            dag_command.dag_backfill(
+                self.parser.parse_args(
+                    [
+                        'dags',
+                        'backfill',
+                        'example_branch_(python_){0,1}operator(_decorator){0,1}',
+                        '--task-regex',
+                        'run_this_first',
+                        '--dry-run',
+                        '--dag-regex',
+                        '--start-date',
+                        DEFAULT_DATE.isoformat(),
+                    ]
+                ),
+            )
+
+        output = stdout.getvalue()
+
+        assert (
+            f"Dry run of DAG example_branch_python_operator_decorator on "
+            f"{DEFAULT_DATE.isoformat()}\n" in output
+        )

Review Comment:
   @domagojrazum Some static checks are failing at this point due to concatenated string literals. 



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