Allow passing config dict to get_favicons

favicon/models.py

@@ -60,16 +60,19 @@ class Favicon(models.Model):
         verbose_name = 'Favicon'
         verbose_name_plural = 'Favicons'
 
-    def get_favicons(self, update=False):
+    def get_favicons(self, update=False, config_override=None):
         """
         Get all combinations of favicons as configured, creating mising ones.
 
         Pass update=True to force re-generation of existing icons.
         """
+        # Use default config by default
+        if config_override is None:
+            config_override = config
         # Get all combinations of favicon rels and sizes from config
         query = Q()
-        for rel in config:
-            for size in config[rel]:
+        for rel in config_override:
+            for size in config_override[rel]:
                 query |= Q(rel=rel, size=size)
 
         # Get all existing favicons