[core/output] Add id of widget and module to output

In the process of that, fix a bug in how the parent class constructors
were invoked.

core/output.py

@@ -38,7 +38,9 @@ class i3(object):
         for module in self._modules:
             for widget in module.widgets():
                 status.append({
-                    'full_text': widget.full_text()
+                    'full_text': widget.full_text(),
+                    'instance': widget.id(),
+                    'name': module.id(),
                 })
         return {
             'data': status,

core/widget.py

@@ -1,7 +1,9 @@
+import core.input
 import util.store
 
-class Widget(util.store.Store):
+class Widget(util.store.Store, core.input.Object):
     def __init__(self, full_text):
+        super(Widget, self).__init__()
         self._full_text = full_text
 
     def full_text(self, value=None):

tests/util/test_store.py

@@ -2,7 +2,7 @@ import unittest
 
 import util.store
 
-class config(unittest.TestCase):
+class store(unittest.TestCase):
     def setUp(self):
         self.store = util.store.Store()
 
@@ -12,9 +12,6 @@ class config(unittest.TestCase):
         self.someValue = "someRandomValue"
         self.someOtherValue = "anotherRandomValue"
 
-    def tearDown(self):
-        pass
-
     def test_get_of_unset_key(self):
         self.assertEqual(None, self.store.get(self.unusedKey), 'default value expected to be None')
         self.assertEqual(self.someValue, self.store.get(self.unusedKey, self.someValue), 'wrong user-provided default value returned')

util/store.py

@@ -8,6 +8,7 @@ this module
 class Store(object):
     """Interface for storing and retrieving simple values"""
     def __init__(self):
+        super(Store, self).__init__()
         self._data = {}
 
     def set(self, key, value):