Add test for no matching collection

arches_references/management/commands/controlled_lists.py

@@ -1,4 +1,4 @@
-from arches.app.models.models import Concept, Value
+from arches.app.models.models import Value
 from django.core.management.base import BaseCommand
 
 
@@ -99,7 +99,7 @@ def migrate_collections_to_controlled_lists(
         ]
 
         if len(failed_collections) > 0:
-            self.stdout.write(
+            self.stderr.write(
                 "Failed to find the following collections in the database: %s"
                 % ", ".join(failed_collections)
             )

tests/cli_tests.py

@@ -96,3 +96,18 @@ def test_migrate_collections_to_controlled_lists(self):
         imported_list = List.objects.get(name="Concept Label Import Test")
         imported_items = imported_list.list_items.all()
         self.assertEqual(len(imported_items), 3)
+
+    def test_no_matching_collection_error(self):
+        expected_output = "Failed to find the following collections in the database: Collection That Doesn't Exist"
+        with captured_stdout() as output:
+            management.call_command(
+                "controlled_lists",
+                operation="migrate_collections_to_controlled_lists",
+                collections_to_migrate=["Collection That Doesn't Exist"],
+                host="http://localhost:8000/plugins/controlled-list-manager/item/",
+                preferred_sort_language="en",
+                overwrite=False,
+                stdout=output,
+                stderr=output,
+            )
+        self.assertIn(expected_output, output.getvalue().strip())