From a0c567f751a1f66d7b355d18f2cd990beeb6718e Mon Sep 17 00:00:00 2001
From: Luke Church <luke@church.name>
Date: Mon, 21 Nov 2016 20:17:41 -0800
Subject: [PATCH] Add delay between writing file and modifying it (#6968)

* Add delay between writing file and modifying it

* Add type argument
---
 packages/flutter_tools/test/devfs_test.dart | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/packages/flutter_tools/test/devfs_test.dart b/packages/flutter_tools/test/devfs_test.dart
index 2eee2428b2..63f554a2c4 100644
--- a/packages/flutter_tools/test/devfs_test.dart
+++ b/packages/flutter_tools/test/devfs_test.dart
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 import 'dart:io';
+import 'dart:async';
 
 import 'package:flutter_tools/src/asset.dart';
 import 'package:flutter_tools/src/build_info.dart';
@@ -39,18 +40,21 @@ void main() {
       await devFS.update();
       expect(devFSOperations.contains('writeFile test bar/foo.txt'), isTrue);
     });
-    testUsingContext('modify existing file on local file system', () async {
-      File file = new File(path.join(basePath, filePath));
-      file.writeAsBytesSync(<int>[1, 2, 3, 4, 5, 6]);
-      await devFS.update();
-      expect(devFSOperations.contains('writeFile test bar/foo.txt'), isTrue);
-    });
     testUsingContext('add new file to local file system', () async {
       File file = new File(path.join(basePath, filePath2));
       await file.parent.create(recursive: true);
       file.writeAsBytesSync(<int>[1, 2, 3, 4, 5, 6, 7]);
       await devFS.update();
       expect(devFSOperations.contains('writeFile test foo/bar.txt'), isTrue);
+      // Need to delay between when we first write to a file and when
+      // we modify it.
+      await new Future<Null>.delayed(new Duration(seconds: 1));
+    });
+    testUsingContext('modify existing file on local file system', () async {
+      File file = new File(path.join(basePath, filePath));
+      await file.writeAsBytes(<int>[1, 2, 3, 4, 5, 6]);
+      await devFS.update();
+      expect(devFSOperations.contains('writeFile test bar/foo.txt'), isTrue);
     });
     testUsingContext('delete a file from the local file system', () async {
       File file = new File(path.join(basePath, filePath));