Testing Placeimage file change

lostplaces/lostplaces_app/tests/models/test_place_image_model.py

@@ -44,6 +44,11 @@ class TestPlaceImage(SubmittableTestCase, TestCase):
                 os.path.join(settings.MEDIA_ROOT, 'im_a_image_copy.jpeg')
             )
             
+            shutil.copyfile(
+                os.path.join(current_dir, 'im_a_image.jpeg'),
+                os.path.join(settings.MEDIA_ROOT, 'im_a_image_changed.jpeg')
+            )
+            
         PlaceImage.objects.create(
             description='Im a description',
             filename=os.path.join(settings.MEDIA_ROOT, 'im_a_image_copy.jpeg'),
@@ -82,8 +87,16 @@ class TestPlaceImage(SubmittableTestCase, TestCase):
             )
         )
         
+    def test_change_filename(self):
+        path = self.object.filename.path
+        self.object.filename = os.path.join(settings.MEDIA_ROOT, 'im_a_image_changed.jpeg')
+        self.object.save()
+        self.assertFalse(
+            os.path.isfile(path),
+            msg='Expecting the old file of an place_image to be deleteed when an place_image file is changed'
+        )
+        
     def test_deletion(self):
-        # TODO
         path = self.object.filename.path
         self.object.delete()
         self.assertFalse(