adding test for nested assocs

Author: crazyeng

wolframclient/tests/deserializers/wxf_deserialize.py

@@ -18,9 +18,9 @@
 from wolframclient.tests.configure import skip_for_jython
 from wolframclient.utils import six
 from wolframclient.utils.api import numpy
+from wolframclient.utils.datastructures import immutabledict
 from wolframclient.utils.tests import TestCase as BaseTestCase
 
-
 class TestCase(BaseTestCase):
     def test_token_dimensions(self):
         token = WXFToken(None)
@@ -199,6 +199,13 @@ def test_compressed_input(self):
         res = binary_deserialize(wxf, consumer=WXFConsumer())
         self.assertEqual(expr, res)
 
+    def test_nested_associations(self):
+        expr = immutabledict((('a', 2), ('a', 3)))
+        expr = immutabledict(((expr, expr), (2, 3)))
+        wxf = export(expr, target_format="wxf", compress=True)
+        res = binary_deserialize(wxf, consumer=WXFConsumer())
+        self.assertEqual(expr, res)
+
     # Custom consumers
     class BadGreedyConsumer(WXFConsumer):
         def consume_function(self, current_token, tokens, **kwargs):