Added test for new case

Author: gabe-push

test/plugins/test_edit.py

@@ -176,6 +176,25 @@ def test_single_title_edit_apply(self, mock_write):
         )
         assert list(self.album.items())[-1].title == "modified t\u00eftle 9"
 
+    def test_title_edit_keep_editing_then_apply(self, mock_write):
+        """Edit titles, keep editing once, then apply changes."""
+        # First, choose "keep editing" so changes are reverted in memory but
+        # kept in the YAML file; then choose "apply" to commit them.
+        self.run_mocked_command(
+            {"replacements": {"t\u00eftle": "modified t\u00eftle"}},
+            # keep Editing, then Apply
+            ["e", "a"],
+        )
+
+        # Writes should only happen once per track, when we finally apply.
+        assert mock_write.call_count == self.TRACK_COUNT
+        # All item titles (and mtimes) should now reflect the modified values.
+        self.assertItemFieldsModified(
+            self.album.items(),
+            self.items_orig,
+            ["title", "mtime"],
+        )
+
     def test_noedit(self, mock_write):
         """Do not edit anything."""
         # Do not edit anything.