Consolidate all platforms that have no tests (#22096)

* Consolidate

* Fix tests

* Update imports

* Fix import

* Use importlib because integration and package share name

* Fix more tests

* Update .coveragerc and CODEOWNERS

homeassistant/components/cpuspeed/sensor.py

@@ -0,0 +1,98 @@
+"""
+Support for displaying the current CPU speed.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/sensor.cpuspeed/
+"""
+import logging
+
+import voluptuous as vol
+
+import homeassistant.helpers.config_validation as cv
+from homeassistant.components.sensor import PLATFORM_SCHEMA
+from homeassistant.const import CONF_NAME
+from homeassistant.helpers.entity import Entity
+
+REQUIREMENTS = ['py-cpuinfo==4.0.0']
+
+_LOGGER = logging.getLogger(__name__)
+
+ATTR_BRAND = 'Brand'
+ATTR_HZ = 'GHz Advertised'
+ATTR_ARCH = 'arch'
+
+HZ_ACTUAL_RAW = 'hz_actual_raw'
+HZ_ADVERTISED_RAW = 'hz_advertised_raw'
+
+DEFAULT_NAME = 'CPU speed'
+
+ICON = 'mdi:pulse'
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
+})
+
+
+def setup_platform(hass, config, add_entities, discovery_info=None):
+    """Set up the CPU speed sensor."""
+    name = config.get(CONF_NAME)
+
+    add_entities([CpuSpeedSensor(name)], True)
+
+
+class CpuSpeedSensor(Entity):
+    """Representation of a CPU sensor."""
+
+    def __init__(self, name):
+        """Initialize the sensor."""
+        self._name = name
+        self._state = None
+        self.info = None
+        self._unit_of_measurement = 'GHz'
+
+    @property
+    def name(self):
+        """Return the name of the sensor."""
+        return self._name
+
+    @property
+    def state(self):
+        """Return the state of the sensor."""
+        return self._state
+
+    @property
+    def unit_of_measurement(self):
+        """Return the unit the value is expressed in."""
+        return self._unit_of_measurement
+
+    @property
+    def device_state_attributes(self):
+        """Return the state attributes."""
+        if self.info is not None:
+            attrs = {
+                ATTR_ARCH: self.info['arch'],
+                ATTR_BRAND: self.info['brand'],
+            }
+
+            if HZ_ADVERTISED_RAW in self.info:
+                attrs[ATTR_HZ] = round(
+                    self.info[HZ_ADVERTISED_RAW][0] / 10 ** 9, 2
+                )
+            return attrs
+
+    @property
+    def icon(self):
+        """Return the icon to use in the frontend, if any."""
+        return ICON
+
+    def update(self):
+        """Get the latest data and updates the state."""
+        from cpuinfo import cpuinfo
+
+        self.info = cpuinfo.get_cpu_info()
+        if HZ_ACTUAL_RAW in self.info:
+            self._state = round(
+                float(self.info[HZ_ACTUAL_RAW][0]) / 10 ** 9, 2
+            )
+        else:
+            self._state = None