Bugfixes random (#2270)

* Fix Z-Wave autoheal network

* Make config_per_platform handle bad config better

tests/helpers/test_init.py

@@ -1,5 +1,6 @@
 """Test component helpers."""
 # pylint: disable=protected-access,too-many-public-methods
+from collections import OrderedDict
 import unittest
 
 from homeassistant import helpers
@@ -30,3 +31,19 @@ class TestHelpers(unittest.TestCase):
 
         self.assertEqual(set(['zone', 'zone Hallo', 'zone 100']),
                          set(helpers.extract_domain_configs(config, 'zone')))
+
+    def test_config_per_platform(self):
+        """Test config per platform method."""
+        config = OrderedDict([
+            ('zone', {'platform': 'hello'}),
+            ('zoner', None),
+            ('zone Hallo', [1, {'platform': 'hello 2'}]),
+            ('zone 100', None),
+        ])
+
+        assert [
+            ('hello', config['zone']),
+            (None, 1),
+            ('hello 2', config['zone Hallo'][1]),
+            (None, None)
+        ] == list(helpers.config_per_platform(config, 'zone'))