Wait to begin thrashing until we have completed reloading the data so we aren't trying to do both operations concurrently.

Author: eanagel

AsyncDisplayKitTests/ASTableViewTests.m

@@ -151,8 +151,19 @@ - (void)testReloadData
 
   tableView.asyncDelegate = dataSource;
   tableView.asyncDataSource = dataSource;
+
+  XCTestExpectation *reloadDataExpectation = [self expectationWithDescription:@"reloadData"];
 
-  [tableView reloadData];
+  [tableView reloadDataWithCompletion:^{
+    NSLog(@"*** Reload Complete ***");
+    [reloadDataExpectation fulfill];
+  }];
+
+  [self waitForExpectationsWithTimeout:5 handler:^(NSError *error) {
+    if (error) {
+      XCTFail(@"Expectation failed: %@", error);
+    }
+  }];
 
   for (int i = 0; i < NumberOfReloadIterations; ++i) {
     UITableViewRowAnimation rowAnimation = (arc4random_uniform(2) == 0 ? UITableViewRowAnimationMiddle : UITableViewRowAnimationNone);