Add:创建 flutter go web 版

packages/flutter_web/test/widgets/padding_test.dart

@@ -0,0 +1,29 @@
+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter_web/material.dart';
+import 'package:flutter_web/rendering.dart';
+import 'package:flutter_web_test/flutter_web_test.dart';
+
+void main() {
+  group('$Padding', () {
+    testWidgets('sets padding', (WidgetTester tester) async {
+      await tester.pumpWidget(
+        new Directionality(
+          textDirection: TextDirection.ltr,
+          child: new Padding(
+            padding: new EdgeInsets.fromLTRB(1.0, 2.0, 3.0, 4.0),
+            child: new SizedBox.expand(),
+          ),
+        ),
+      );
+
+      // The window is 800x600
+      final RenderBox box = tester.renderObject(find.byType(SizedBox));
+      expect(box.size, const Size(796.0, 594.0));
+      final BoxParentData parentData = box.parentData;
+      expect(parentData.offset, const Offset(1.0, 2.0));
+    });
+  });
+}