Add random number sensor (#4139)

tests/components/sensor/test_random.py

@@ -0,0 +1,36 @@
+"""The test for the random number sensor platform."""
+import unittest
+
+from homeassistant.bootstrap import setup_component
+
+from tests.common import get_test_home_assistant
+
+
+class TestRandomSensor(unittest.TestCase):
+    """Test the Random number sensor."""
+
+    def setup_method(self, method):
+        """Set up things to be run when tests are started."""
+        self.hass = get_test_home_assistant()
+
+    def teardown_method(self, method):
+        """Stop everything that was started."""
+        self.hass.stop()
+
+    def test_random_sensor(self):
+        """Test the Randowm number sensor."""
+        config = {
+            'sensor': {
+                'platform': 'random',
+                'name': 'test',
+                'minimum': 10,
+                'maximum': 20,
+            }
+        }
+
+        assert setup_component(self.hass, 'sensor', config)
+
+        state = self.hass.states.get('sensor.test')
+
+        self.assertLessEqual(int(state.state), config['sensor']['maximum'])
+        self.assertGreater(int(state.state), config['sensor']['minimum'])