Import of working code base

Signed-off-by: martin f. krafft <madduck@madduck.net>
diff --git a/mergers/dict/tests/test_recursive_update.py b/mergers/dict/tests/test_recursive_update.py
new file mode 100644
index 0000000..c1e8501
--- /dev/null
+++ b/mergers/dict/tests/test_recursive_update.py
@@ -0,0 +1,45 @@
+#
+# -*- coding: utf-8 -*-
+#
+# This file is part of reclass (http://github.com/madduck/reclass)
+#
+# Copyright © 2007–13 martin f. krafft <madduck@madduck.net>
+# Released under the terms of the Artistic Licence 2.0
+#
+from test_update import TestDictUpdate
+from mergers.dict import DictRecursiveUpdate
+
+class TestDictRecursiveUpdate(TestDictUpdate):
+
+    def setUp(self):
+        self.merger = DictRecursiveUpdate()
+
+    def test_simple_recursive_dict_update(self):
+        first = {'one':{1:1,2:3,3:2}}
+        second = {'one':{2:2,3:3,4:4}}
+        ret = self.merger.merge(first, second)
+        assert len(ret) == 1
+        for k,v in ret['one'].iteritems():
+            assert k == v
+
+    def test_complex_recursive_dict_update(self):
+        first = {'one': 1,
+                 'two': {'a':92,'b':94},
+                 'three': {'third':0.33,'two thirds':0.67},
+                 'four': {1:{1:1},2:{2:2},3:{3:4}}
+                }
+        second = {'five': 5,
+                  'one': 1,
+                  'two': {'b':93,'c':94},
+                  'four': {4:{4:4}, 3:{3:3}},
+                 }
+        ret = self.merger.merge(first, second)
+        assert ret['one'] == 1
+        assert len(ret['two']) == 3
+        assert ret['two']['b'] == 93
+        assert len(ret['three']) == 2
+        assert len(ret['four']) == 4
+        for i in range(1,4):
+            assert len(ret['four'][i]) == 1
+            for k,v in ret['four'][i].iteritems():
+                assert k == v