Fixed two mistakes in stats query count_nodes()

- 'p.x' → 'project.x'
- is_private: {$ne: true} → is_private: False, because true is the default.

tests/test_stats.py

@@ -0,0 +1,41 @@
+import copy
+
+from bson import ObjectId
+from pillar.tests import common_test_data as ctd
+
+from abstract_cloud_test import AbstractCloudTest
+
+
+class StatsTest(AbstractCloudTest):
+    def test_count_public_nodes(self):
+        self.enter_app_context()
+
+        # Create two public and two private projects. Only the assets from the
+        # public projects should be counted.
+        public1 = self.create_project_with_admin(
+            24 * 'a', project_overrides={'_id': ObjectId(), 'is_private': False})
+        public2 = self.create_project_with_admin(
+            24 * 'b', project_overrides={'_id': ObjectId(), 'is_private': False})
+        private1 = self.create_project_with_admin(
+            24 * 'c', project_overrides={'_id': ObjectId(), 'is_private': True})
+        private2 = self.create_project_with_admin(
+            24 * 'd', project_overrides={'_id': ObjectId(), 'is_private': None})
+
+        self.assertEqual(4, self.app.db('projects').count())
+
+        # Create asset node
+        self.assertEqual('asset', ctd.EXAMPLE_NODE['node_type'])
+        example_node = copy.deepcopy(ctd.EXAMPLE_NODE)
+        del example_node['_id']
+        del example_node['project']
+
+        for pid in (public1, public2, private1, private2):
+            self.create_node({'_id': ObjectId(), 'project': pid, **example_node})
+            self.create_node({'_id': ObjectId(), 'project': pid, **example_node})
+            self.create_node({'_id': ObjectId(), 'project': pid, **example_node})
+            self.create_node({'_id': ObjectId(), 'project': pid, **example_node})
+
+        # Count the asset nodes
+        from cloud.stats import count_nodes
+        count = count_nodes({'node_type': 'asset'})
+        self.assertEqual(8, count)