diff --git a/test/util.t.cpp b/test/util.t.cpp
index ba9ceb26f..3399f0c73 100644
--- a/test/util.t.cpp
+++ b/test/util.t.cpp
@@ -36,7 +36,7 @@ Context context;
 ////////////////////////////////////////////////////////////////////////////////
 int main (int argc, char** argv)
 {
-  UnitTest t (23);
+  UnitTest t (22);
 
   // Ensure environment has no influence.
   unsetenv ("TASKDATA");
@@ -65,7 +65,6 @@ int main (int argc, char** argv)
   // TODO const std::string uuid ();
 
   // TODO These are in feedback.cpp, not util.cpp.
-  // std::string taskDiff (const Task&, const Task&);
   Task left;
   left.set ("zero", "0");
   left.set ("one",  1);
@@ -79,13 +78,12 @@ int main (int argc, char** argv)
   Task rightAgain (right);
 
   std::string output = taskDifferences (left, right);
-  t.ok (taskDiff (left, right),                                                     "Detected changes");
+  t.ok (left != right,                                                              "Detected changes");
   t.ok (output.find ("Zero will be changed from '0' to '00'") != std::string::npos, "Detected change zero:0 -> zero:00");
   t.ok (output.find ("One will be deleted")                   != std::string::npos, "Detected deletion one:1 ->");
   t.ok (output.find ("Two")                                   == std::string::npos, "Detected no change two:2 -> two:2");
   t.ok (output.find ("Three will be set to '3'")              != std::string::npos, "Detected addition -> three:3");
 
-  t.notok (taskDiff (right, rightAgain),                                            "No changes detected");
   output = taskDifferences (right, rightAgain);
   t.ok (output.find ("No changes will be made")               != std::string::npos, "No changes detected");