Nested list + frozendict testcase

Author: jsbueno

Lib/test/test_json/test_decode.py

@@ -71,17 +71,18 @@ def test_object_pairs_hook(self):
 
     def test_array_hook(self):
         s = '[1, 2, 3]'
-
         t = self.loads(s, array_hook=tuple)
         self.assertEqual(t, (1, 2, 3))
         self.assertEqual(type(t), tuple)
-        # Array in inner structure
-        s = '{"xkd": [1, 2, 3]}'
-        p = {"xkd": (1, 2, 3)}
-        data = self.loads(s, array_hook=tuple)
+        # Nested array in inner structure with object_hook
+        s = '{"xkd": [[1], [2], [3]]}'
+        p = frozendict(xkd=((1,), (2,), (3,)))
+        data = self.loads(s, object_hook=frozendict, array_hook=tuple)
         self.assertEqual(data, p)
+        self.assertEqual(type(data), frozendict)
         self.assertEqual(type(data["xkd"]), tuple)
-
+        for item in data["xkd"]:
+            self.assertEqual(type(item), tuple)
         self.assertEqual(self.loads('[]', array_hook=tuple), ())
 
     def test_decoder_optimizations(self):