Refactory of envisalink (#6160)

* Refactory of envisalink

* remove event buss

* init dispatcher from hass.

* Move platform to new dispatcher

* fix lint

* add unittest & threadded functions

* fix copy & past error

tests/helpers/test_dispatcher.py

@@ -0,0 +1,103 @@
+"""Test dispatcher helpers."""
+import asyncio
+
+from homeassistant.core import callback
+from homeassistant.helpers.dispatcher import (
+    dispatcher_send, dispatcher_connect)
+
+from tests.common import get_test_home_assistant
+
+
+class TestHelpersDispatcher(object):
+    """Tests for discovery helper methods."""
+
+    def setup_method(self, method):
+        """Setup 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_simple_function(self):
+        """Test simple function (executor)."""
+        calls = []
+
+        def test_funct(data):
+            """Test function."""
+            calls.append(data)
+
+        dispatcher_connect(self.hass, 'test', test_funct)
+        self.hass.block_till_done()
+
+        dispatcher_send(self.hass, 'test', 3)
+        self.hass.block_till_done()
+
+        assert calls == [3]
+
+        dispatcher_send(self.hass, 'test', 'bla')
+        self.hass.block_till_done()
+
+        assert calls == [3, 'bla']
+
+    def test_simple_callback(self):
+        """Test simple callback (async)."""
+        calls = []
+
+        @callback
+        def test_funct(data):
+            """Test function."""
+            calls.append(data)
+
+        dispatcher_connect(self.hass, 'test', test_funct)
+        self.hass.block_till_done()
+
+        dispatcher_send(self.hass, 'test', 3)
+        self.hass.block_till_done()
+
+        assert calls == [3]
+
+        dispatcher_send(self.hass, 'test', 'bla')
+        self.hass.block_till_done()
+
+        assert calls == [3, 'bla']
+
+    def test_simple_coro(self):
+        """Test simple coro (async)."""
+        calls = []
+
+        @asyncio.coroutine
+        def test_funct(data):
+            """Test function."""
+            calls.append(data)
+
+        dispatcher_connect(self.hass, 'test', test_funct)
+        self.hass.block_till_done()
+
+        dispatcher_send(self.hass, 'test', 3)
+        self.hass.block_till_done()
+
+        assert calls == [3]
+
+        dispatcher_send(self.hass, 'test', 'bla')
+        self.hass.block_till_done()
+
+        assert calls == [3, 'bla']
+
+    def test_simple_function_multiargs(self):
+        """Test simple function (executor)."""
+        calls = []
+
+        def test_funct(data1, data2, data3):
+            """Test function."""
+            calls.append(data1)
+            calls.append(data2)
+            calls.append(data3)
+
+        dispatcher_connect(self.hass, 'test', test_funct)
+        self.hass.block_till_done()
+
+        dispatcher_send(self.hass, 'test', 3, 2, 'bla')
+        self.hass.block_till_done()
+
+        assert calls == [3, 2, 'bla']