anchor.diff:  ///
   /// If [body] returns a [Future], that future will automatically be wrapped with
   /// [wrapFuture].
  -void test(String description, Future body()) =>
  +void test(String description, body()) =>
     _test(description, body, unittest.test);
   
   /// Creates a new test case with the given description and body that will be the
  
positive.code: ///
  /// If [body] returns a [Future], that future will automatically be wrapped with
  /// [wrapFuture].
  void solo_test(String description, Future body()) =>
    _test(description, body, unittest.solo_test);
  
  void _test(String description, Future body(), Function testFn) {
    maybeWrapFuture(future, description) {
      if (future != null) wrapFuture(future, description);
    }
  
negative.code: /// be scheduled for [currentSchedule.onComplete] or
  /// [currentSchedule.onException]. These tasks will be run after each test's
  /// schedule is completed.
  void setUp(setUpFn()) {
    _setUpScheduledTest(setUpFn);
  }
  
  