Clean command

tests/test_gui_core.py

@@ -1652,6 +1652,20 @@ class WorkflowTests(unittest.TestCase):
         self.assertEqual(rotate[2:], ["-m", "copienator", "copies", "rotate", self.evaluation])
         self.assertEqual(rename[2:], ["-m", "copienator", "copies", "rename", self.evaluation])
 
+    def test_clean_is_the_last_dangerous_gui_step(self) -> None:
+        ordered_steps = build_workflow(True)
+        clean = ordered_steps[-1]
+        self.assertEqual(clean.id, "clean")
+        self.assertTrue(clean.optional)
+        self.assertTrue(clean.variants[0].dangerous)
+        self.assertIn("progression", clean.variants[0].danger_warning)
+        self.assertEqual(
+            command_arguments(
+                self.command("clean", "default", {"target": self.evaluation})
+            ),
+            [self.evaluation, "--yes"],
+        )
+
 
 class CrossPlatformFileTests(unittest.TestCase):
     def test_rotate_all_skips_statement(self) -> None: