diff --git a/anki/sync.py b/anki/sync.py
index 0ae471452..2bd35d626 100644
--- a/anki/sync.py
+++ b/anki/sync.py
@@ -604,3 +604,10 @@ class RemoteMediaServer(MediaSyncer, HttpSyncer):
         return simplejson.loads(
             self.postData(self.con, "addFiles", StringIO(zip),
                           self._vars(), comp=0))
+
+    # only for unit tests
+    def mediatest(self, n):
+        return simplejson.loads(
+            self.postData(self.con, "mediatest", StringIO(
+                simplejson.dumps(dict(n=n))), self._vars()))
+
diff --git a/tests/test_sync.py b/tests/test_sync.py
index 9a692dc16..4c899a8dd 100644
--- a/tests/test_sync.py
+++ b/tests/test_sync.py
@@ -357,8 +357,8 @@ def test_mediaAdd():
     os.chdir(deck1.media.dir())
     open(os.path.join(deck1.media.dir(), "foo.jpg"), "wb").write("foo")
     assert len(os.listdir(deck1.media.dir())) == 1
-    #assert len(os.listdir(deck2.media.dir())) == 0
+    assert server.mediatest(1) == 0
     client.sync()
     assert len(os.listdir(deck1.media.dir())) == 1
-    #assert len(os.listdir(deck2.media.dir())) == 1
+    assert server.mediatest(1) == 1