basic challenge done

Signed-off-by: Jan Heise <heise@dresearch.de>

test/data/accept.xml

@@ -0,0 +1,3 @@
+<DataReceived xmlns="http://www.boschsecurity.com/2011/09/OpenInterface" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
+	<Token>42</Token>
+</DataReceived>

test/test_404_event_cam.py

@@ -1,19 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
-Acceptance Test
-~~~~~~~~~~~~~~~
-
-:Ablauf:
-    - Adapter wird erzeugt
-    - Daten werden angefordert
-
-:Erwartetes Ergebnis:
-    - Daten sind korrekt
-"""
-from nose.tools import assert_equals
-from .. import Adapter
-
-def test_acceptance():
-    """ Acceptance Test """
-
-    adapter = Adapter

test/test_accept.py

@@ -0,0 +1,40 @@
+# -*- coding: utf-8 -*-
+"""
+Acceptance Test
+~~~~~~~~~~~~~~~
+
+:Ablauf:
+    - Adapter wird erzeugt
+    - Daten werden angefordert
+
+:Erwartetes Ergebnis:
+    - Daten sind korrekt
+"""
+from nose.twistedtools import reactor, deferred
+from nose.tools import assert_equals
+from twisted.internet.defer import Deferred
+from .data import TEST_DATA_DIR
+from .. import Adapter
+
+def test_acceptance():
+    """ Acceptance test (synchron) """
+
+    adapter = Adapter(TEST_DATA_DIR)
+    data = adapter.retrieve_token("accept")
+    assert_equals(data, '{"token": 42}')
+
+
+@deferred(timeout=2.0)
+def test_acceptance_async():
+    """ Acceptance test (asynchron) """
+
+    adapter = Adapter(TEST_DATA_DIR)
+    finish = Deferred()
+    defer = adapter.retrieve_token_async("accept")
+
+    def check(data):
+        assert_equals(data, '{"token": 42}')
+        finish.callback(None)
+    defer.addCallback(check)
+
+    return finish