Add Zwave sensors test (#6640)

* Test for zwave sensor

* Add test for ZWave sensors

* Hound...

* Hound...

* Review changes

tests/components/sensor/test_zwave.py

@@ -0,0 +1,68 @@
+"""Test Z-Wave sensor."""
+from homeassistant.components.sensor import zwave
+from homeassistant.components.zwave import const
+from tests.mock.zwave import (
+   MockNode, MockValue, MockEntityValues, value_changed)
+
+
+def test_get_device_detects_sensor(mock_openzwave):
+    """Test get_device returns a Z-Wave Sensor."""
+    node = MockNode(command_classes=[const.COMMAND_CLASS_BATTERY])
+    value = MockValue(data=0, command_class=const.COMMAND_CLASS_BATTERY,
+                      node=node)
+    values = MockEntityValues(primary=value)
+
+    device = zwave.get_device(node=node, values=values, node_config={})
+    assert isinstance(device, zwave.ZWaveSensor)
+
+
+def test_get_device_detects_alarmsensor(mock_openzwave):
+    """Test get_device returns a Z-Wave alarmsensor."""
+    node = MockNode(command_classes=[const.COMMAND_CLASS_ALARM,
+                                     const.COMMAND_CLASS_SENSOR_ALARM])
+    value = MockValue(data=0, node=node)
+    values = MockEntityValues(primary=value)
+
+    device = zwave.get_device(node=node, values=values, node_config={})
+    assert isinstance(device, zwave.ZWaveAlarmSensor)
+
+
+def test_get_device_detects_multilevelsensor(mock_openzwave):
+    """Test get_device returns a Z-Wave multilevel sensor."""
+    node = MockNode(command_classes=[const.COMMAND_CLASS_SENSOR_MULTILEVEL,
+                                     const.COMMAND_CLASS_METER])
+    value = MockValue(data=0, node=node)
+    values = MockEntityValues(primary=value)
+
+    device = zwave.get_device(node=node, values=values, node_config={})
+    assert isinstance(device, zwave.ZWaveMultilevelSensor)
+
+
+def test_multilevelsensor_value_changed_temp_units(mock_openzwave):
+    """Test value changed for Z-Wave multilevel sensor for temperature."""
+    node = MockNode(command_classes=[const.COMMAND_CLASS_SENSOR_MULTILEVEL,
+                                     const.COMMAND_CLASS_METER])
+    value = MockValue(data=190.95555, units='F', node=node)
+    values = MockEntityValues(primary=value)
+
+    device = zwave.get_device(node=node, values=values, node_config={})
+    assert device.state == 191.0
+    assert value.units == 'F'
+    value.data = 197.95555
+    value_changed(value)
+    assert device.state == 198.0
+
+
+def test_multilevelsensor_value_changed_other_units(mock_openzwave):
+    """Test value changed for Z-Wave multilevel sensor for other units."""
+    node = MockNode(command_classes=[const.COMMAND_CLASS_SENSOR_MULTILEVEL,
+                                     const.COMMAND_CLASS_METER])
+    value = MockValue(data=190.95555, units='kWh', node=node)
+    values = MockEntityValues(primary=value)
+
+    device = zwave.get_device(node=node, values=values, node_config={})
+    assert device.state == 190.96
+    assert value.units == 'kWh'
+    value.data = 197.95555
+    value_changed(value)
+    assert device.state == 197.96