Add initial Z-Wave config panel (#5937)

* Add Z-Wave config panel

* Add config to Z-Wave dependencies

* Lint

* lint

* Add tests

* Remove temp workaround

* Lint

* Fix tests

* Address comments

* Fix tests under Py34

tests/components/config/test_zwave.py

@@ -0,0 +1,89 @@
+"""Test Z-Wave config panel."""
+import asyncio
+import json
+from unittest.mock import patch
+
+from homeassistant.bootstrap import async_setup_component
+from homeassistant.components import config
+from homeassistant.components.config.zwave import DeviceConfigView
+from tests.common import mock_http_component_app
+
+
+@asyncio.coroutine
+def test_get_device_config(hass, test_client):
+    """Test getting device config."""
+    app = mock_http_component_app(hass)
+
+    with patch.object(config, 'SECTIONS', ['zwave']):
+        yield from async_setup_component(hass, 'config', {})
+
+    hass.http.views[DeviceConfigView.name].register(app.router)
+
+    client = yield from test_client(app)
+
+    def mock_read(path):
+        """Mock reading data."""
+        return {
+            'hello.beer': {
+                'free': 'beer',
+            },
+            'other.entity': {
+                'do': 'something',
+            },
+        }
+
+    with patch('homeassistant.components.config.zwave._read', mock_read):
+        resp = yield from client.get(
+            '/api/config/zwave/device_config/hello.beer')
+
+    assert resp.status == 200
+    result = yield from resp.json()
+
+    assert result == {'free': 'beer'}
+
+
+@asyncio.coroutine
+def test_update_device_config(hass, test_client):
+    """Test updating device config."""
+    app = mock_http_component_app(hass)
+
+    with patch.object(config, 'SECTIONS', ['zwave']):
+        yield from async_setup_component(hass, 'config', {})
+
+    hass.http.views[DeviceConfigView.name].register(app.router)
+
+    client = yield from test_client(app)
+
+    orig_data = {
+        'hello.beer': {
+            'ignored': True,
+        },
+        'other.entity': {
+            'polling_intensity': 2,
+        },
+    }
+
+    def mock_read(path):
+        """Mock reading data."""
+        return orig_data
+
+    written = []
+
+    def mock_write(path, data):
+        """Mock writing data."""
+        written.append(data)
+
+    with patch('homeassistant.components.config.zwave._read', mock_read), \
+            patch('homeassistant.components.config.zwave._write', mock_write):
+        resp = yield from client.post(
+            '/api/config/zwave/device_config/hello.beer', data=json.dumps({
+                'polling_intensity': 2
+            }))
+
+    assert resp.status == 200
+    result = yield from resp.json()
+    assert result == {'result': 'ok'}
+
+    orig_data['hello.beer']['polling_intensity'] = 2
+
+    assert written[0] == orig_data