Reproduced bug in tests

This reproduces the issue described in #97, when saving an unpopulated
object apparently triggers population before sending the PUT request.
Fix coming soon.

test/fixtures/nodebalancers_123456_configs_65432_nodes.json

@@ -0,0 +1,17 @@
+{
+  "data": [
+    {
+      "status": "Unknown",
+      "nodebalancer_id": 123456,
+      "weight": 50,
+      "address": "192.168.12.34:999",
+      "mode": "accept",
+      "label": "test",
+      "config_id": 65432,
+      "id": 24680
+    }
+  ],
+  "results": 1,
+  "page": 1,
+  "pages": 1
+}

test/objects/linode/linode_test.py

@@ -23,6 +23,19 @@ def test_get_linode(self):
         self.assertTrue(isinstance(linode.image, Image))
         self.assertEqual(linode.image.label, "Ubuntu 17.04")
 
+    def test_update_not_populated_saves(self):
+        """
+        Tests that updating an unpopulated object sends the correct request
+        """
+        linode = Linode(self.client, 123)
+
+        with self.mock_put('/linode/instances/123') as m:
+            linode.label = 'new_label'
+            self.assertEqual(linode._populated, False)
+            linode.save()
+
+            self.assertEqual(m.call_data['label'], 'new_label')
+
     def test_rebuild(self):
         """
         Tests that you can rebuild with an image

test/objects/nodebalancers/nodes_test.py

@@ -0,0 +1,26 @@
+from datetime import datetime
+
+from test.base import ClientBaseCase
+from linode.objects.base import MappedObject
+
+from linode.objects import NodeBalancerNode
+
+
+class NodeBalancerConfigTest(ClientBaseCase):
+    """
+    Tests methods of the NodeBalancerNode class
+    """
+    def test_update_not_populated_saves(self):
+        """
+        Tests that updating an unpopulated object sends the correct request
+        """
+        node = NodeBalancerNode(self.client, 24680, 65432, 123456)
+
+        with self.mock_put('/nodebalancers/123456/configs/65432/nodes/24680') as m:
+            node.weight = 100
+            self.assertEqual(node._populated, False)
+            node.save()
+
+            self.assertEqual(m.call_data['weight'], 100)
+
+