Add unittests for FFmpeg and spliting binary sensor (#5659)

* Spliting ffmpeg binary sensor and move service to component.

* unittests for component

* add unittest for binary_sensor

* exclude camera for tests

homeassistant/components/binary_sensor/ffmpeg_noise.py

@@ -0,0 +1,96 @@
+"""
+Provides a binary sensor which is a collection of ffmpeg tools.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/binary_sensor.ffmpeg_noise/
+"""
+import asyncio
+import logging
+
+import voluptuous as vol
+
+import homeassistant.helpers.config_validation as cv
+from homeassistant.components.binary_sensor import PLATFORM_SCHEMA
+from homeassistant.components.binary_sensor.ffmpeg_motion import (
+    FFmpegBinarySensor)
+from homeassistant.components.ffmpeg import (
+    DATA_FFMPEG, CONF_INPUT, CONF_OUTPUT, CONF_EXTRA_ARGUMENTS,
+    CONF_INITIAL_STATE)
+from homeassistant.const import CONF_NAME
+
+DEPENDENCIES = ['ffmpeg']
+
+_LOGGER = logging.getLogger(__name__)
+
+CONF_PEAK = 'peak'
+CONF_DURATION = 'duration'
+CONF_RESET = 'reset'
+
+DEFAULT_NAME = 'FFmpeg Noise'
+DEFAULT_INIT_STATE = True
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_INPUT): cv.string,
+    vol.Optional(CONF_INITIAL_STATE, default=DEFAULT_INIT_STATE): cv.boolean,
+    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
+    vol.Optional(CONF_EXTRA_ARGUMENTS): cv.string,
+    vol.Optional(CONF_OUTPUT): cv.string,
+    vol.Optional(CONF_PEAK, default=-30): vol.Coerce(int),
+    vol.Optional(CONF_DURATION, default=1):
+        vol.All(vol.Coerce(int), vol.Range(min=1)),
+    vol.Optional(CONF_RESET, default=10):
+        vol.All(vol.Coerce(int), vol.Range(min=1)),
+})
+
+
+@asyncio.coroutine
+def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
+    """Create the binary sensor."""
+    manager = hass.data[DATA_FFMPEG]
+
+    # check source
+    if not manager.async_run_test(config.get(CONF_INPUT)):
+        return
+
+    # generate sensor object
+    entity = FFmpegNoise(hass, manager, config)
+
+    # add to system
+    manager.async_register_device(entity)
+    yield from async_add_devices([entity])
+
+
+class FFmpegNoise(FFmpegBinarySensor):
+    """A binary sensor which use ffmpeg for noise detection."""
+
+    def __init__(self, hass, manager, config):
+        """Initialize ffmpeg noise binary sensor."""
+        from haffmpeg import SensorNoise
+
+        super().__init__(hass, config)
+        self.ffmpeg = SensorNoise(
+            manager.binary, hass.loop, self._async_callback)
+
+    def async_start_ffmpeg(self):
+        """Start a FFmpeg instance.
+
+        This method must be run in the event loop and returns a coroutine.
+        """
+        # init config
+        self.ffmpeg.set_options(
+            time_duration=self._config.get(CONF_DURATION),
+            time_reset=self._config.get(CONF_RESET),
+            peak=self._config.get(CONF_PEAK),
+        )
+
+        # run
+        return self.ffmpeg.open_sensor(
+            input_source=self._config.get(CONF_INPUT),
+            output_dest=self._config.get(CONF_OUTPUT),
+            extra_cmd=self._config.get(CONF_EXTRA_ARGUMENTS),
+        )
+
+    @property
+    def sensor_class(self):
+        """Return the class of this sensor, from SENSOR_CLASSES."""
+        return "sound"