support getting the formatted url to the icon (#61)

* support getting the formatted url to the icon

* fix spacing

* test for icon_url

* Update README.rst

* add icon_url to Application

* fix readme example

* update icon url tests

* update icon_url test

* fix readme example.

* fix test..

* update readme.

---------

Co-authored-by: Jeremy Carbaugh <39159+jcarbaugh@users.noreply.github.com>

Author: ctalkington

README.rst

@@ -88,6 +88,9 @@ You can also get the app's icon.
     >>> with open('hulu.png', 'w') as f:
     ...     f.write(hulu.icon)
 
+    >>> print hulu.icon_url
+    http://0.0.0.0:8060/query/icon/2285
+
 You can get the current running app.
 ::
 

roku/core.py

@@ -85,6 +85,11 @@ def icon(self):
         if self.roku:
             return self.roku.icon(self)
 
+    @property
+    def icon_url(self):
+        if self.roku:
+            return self.roku.icon_url(self)
+
     def launch(self):
         if self.roku:
             self.roku.launch(self)
@@ -331,6 +336,9 @@ def power_state(self):
     def icon(self, app):
         return self._get(f"/query/icon/{app.id}")
 
+    def icon_url(self, app):
+        return "http://%s:%s/query/icon/%s" % (self.host, self.port, app.id)
+
     def launch(self, app, params={}):
         if app.roku and app.roku != self:
             raise RokuException("this app belongs to another Roku")

roku/tests/test_roku.py

@@ -174,3 +174,10 @@ def test_launch(apps):
 
         params = {'params': {'contentID': app.id}}
         assert call == ('POST', f'/launch/{app.id}', (), params)
+
+
+def test_icon_url(apps):
+
+    for app in apps:
+        assert app.roku.icon_url(app) == f"http://0.0.0.0:8060/query/icon/{app.id}"
+        assert app.icon_url == f"http://0.0.0.0:8060/query/icon/{app.id}"