Include a final newline in JSON dumps

Inspired by https://code.djangoproject.com/ticket/36177

Author: matthiask

CHANGELOG.rst

@@ -7,6 +7,8 @@ Next version
 
 - Raised the minimum version requirements to Python 3.10 and Django 4.2.
 - Added Django 5.2.
+- Changed the JSON dumps to include a final newline. This change is inspired by
+  the same change to Django.
 
 
 0.7 (2024-10-28)

feincms3_data/data.py

@@ -100,7 +100,7 @@ def dump_specs(specs, *, mappers=None, objects=None):
             _model_queryset(spec).distinct() for spec in specs
         )
     serializer.serialize(objects, stream=stream)
-    stream.write("}")
+    stream.write("}\n")
     return stream.getvalue()
 
 

tests/testapp/test_data.py

@@ -660,5 +660,5 @@ def test_json_format(self):
 
         self.assertEqual(
             data,
-            '{"version": 1, "specs": [{"model": "testapp.tag"}], "objects": [{"model": "testapp.tag", "pk": 5, "fields": {"name": "Hello", "parent": null}}]}',
+            '{"version": 1, "specs": [{"model": "testapp.tag"}], "objects": [{"model": "testapp.tag", "pk": 5, "fields": {"name": "Hello", "parent": null}}]}\n',
         )