From 37846b032feead07cb469a97bc9d9da01ede2a0c Mon Sep 17 00:00:00 2001
From: Phil Quitslund <pq@users.noreply.github.com>
Date: Thu, 29 Aug 2019 16:47:10 -0700
Subject: [PATCH] migrate from slow async io calls (#39515)

* migrate from slow async io calls
---
 dev/devicelab/lib/tasks/perf_tests.dart            | 2 +-
 packages/flutter_test/test/widget_tester_test.dart | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/dev/devicelab/lib/tasks/perf_tests.dart b/dev/devicelab/lib/tasks/perf_tests.dart
index 41ac4278522..bae1243c908 100644
--- a/dev/devicelab/lib/tasks/perf_tests.dart
+++ b/dev/devicelab/lib/tasks/perf_tests.dart
@@ -122,7 +122,7 @@ TaskFunction createBasicMaterialCompileTest() {
       await flutter('create', options: <String>['--template=app', sampleAppName]);
     });
 
-    if (!(await sampleDir.exists()))
+    if (!sampleDir.existsSync())
       throw 'Failed to create default Flutter app in ${sampleDir.path}';
 
     return CompileTest(sampleDir.path).run();
diff --git a/packages/flutter_test/test/widget_tester_test.dart b/packages/flutter_test/test/widget_tester_test.dart
index 7d8277c7abe..305f6c66ca5 100644
--- a/packages/flutter_test/test/widget_tester_test.dart
+++ b/packages/flutter_test/test/widget_tester_test.dart
@@ -467,6 +467,7 @@ void main() {
       final StringBuffer buf = StringBuffer('1');
       await tester.runAsync(() async {
         buf.write('2');
+        //ignore: avoid_slow_async_io
         await Directory.current.stat();
         buf.write('3');
       });