From e03729958df3e1ae248f5b13b9f7f843cca648e0 Mon Sep 17 00:00:00 2001
From: Roman Mogilatov <rmogilatov@gmail.com>
Date: Fri, 2 Dec 2016 19:29:17 +0200
Subject: [PATCH] Add test for configuration provider

---
 tests/unit/providers/test_configuration.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tests/unit/providers/test_configuration.py b/tests/unit/providers/test_configuration.py
index c2d302eb..3e116ee0 100644
--- a/tests/unit/providers/test_configuration.py
+++ b/tests/unit/providers/test_configuration.py
@@ -47,6 +47,19 @@ class ConfigTests(unittest.TestCase):
         self.assertEqual(abc(), 1)
         self.assertEqual(abd(), 2)
 
+    def test_providers_with_already_set_value(self):
+        self.config.update({'a': {'b': {'c': 1, 'd': 2}}})
+
+        a = self.config.a
+        ab = self.config.a.b
+        abc = self.config.a.b.c
+        abd = self.config.a.b.d
+
+        self.assertEqual(a(), {'b': {'c': 1, 'd': 2}})
+        self.assertEqual(ab(), {'c': 1, 'd': 2})
+        self.assertEqual(abc(), 1)
+        self.assertEqual(abd(), 2)
+
     def test_value_of_undefined_option(self):
         self.assertIsNone(self.config.a())