make tests pass

Author: minenwerfer

src/normalize_json/normalize.py

@@ -102,14 +102,15 @@ def internal_flatten(obj: typing.Any, parent: str = '', depth: int = 0) -> typin
 
 
 def check_types(node: Node, value: typing.Any, modifiers: list[Modifier]):
+    if node.get('array') and value == []:
+        return None
+
     actual = value[0].__class__.__name__ \
         if node.get('array') \
         else value.__class__.__name__
 
     node_type = node.get('type', 'string')
 
-    if node.get('array') and value == []:
-        return None
     if node_enum := node.get('enum'):
         if actual == 'NoneType' and 'default_null' in modifiers:
             return None