Split CI testing based on flutter channels (#651)

experimental/desktop_photo_search/lib/main.dart

@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 import 'dart:io';
-import 'dart:typed_data';
 
 import 'package:file_selector/file_selector.dart';
 import 'package:flutter/foundation.dart';

experimental/null_safety/null_safe_app/lib/badapp.dart

@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// ignore_for_file: unused_local_variable
+
 import 'package:flutter/material.dart';
 
 import 'services.dart';

experimental/null_safety/null_unsafe_app/test/widget_test.dart

@@ -0,0 +1,15 @@
+// This is a basic Flutter widget test.
+//
+// To perform an interaction with a widget in your test, use the WidgetTester
+// utility that Flutter provides. For example, you can send tap and scroll
+// gestures. You can also use WidgetTester to find child widgets in the widget
+// tree, read text, and verify that the values of widget properties are correct.
+
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('Rendering the page throws an exception',
+      (WidgetTester tester) async {
+    // Do nothing, running the app throws an exception on widget render.
+  });
+}

experimental/veggieseasons/lib/screens/settings.dart

@@ -23,7 +23,8 @@ class VeggieCategorySettingsScreen extends StatelessWidget {
 
   static Route<void> _routeBuilder(BuildContext context, Object argument) {
     return CupertinoPageRoute(
-      builder: (context) => VeggieCategorySettingsScreen(restorationId: 'category'),
+      builder: (context) =>
+          VeggieCategorySettingsScreen(restorationId: 'category'),
       title: 'Preferred Categories',
     );
   }
@@ -136,9 +137,10 @@ class CalorieSettingsScreen extends StatelessWidget {
                       label: cals.toString(),
                       icon: SettingsIcon(
                         icon: Styles.checkIcon,
-                        foregroundColor: snapshot.hasData && snapshot.data == cals
-                            ? CupertinoColors.activeBlue
-                            : Styles.transparentColor,
+                        foregroundColor:
+                            snapshot.hasData && snapshot.data == cals
+                                ? CupertinoColors.activeBlue
+                                : Styles.transparentColor,
                         backgroundColor: Styles.transparentColor,
                       ),
                       onPress: snapshot.hasData
@@ -219,7 +221,8 @@ class SettingsScreen extends StatelessWidget {
       restorationId: restorationId,
       child: CupertinoPageScaffold(
         child: Container(
-          color: Styles.scaffoldBackground(CupertinoTheme.brightnessOf(context)),
+          color:
+              Styles.scaffoldBackground(CupertinoTheme.brightnessOf(context)),
           child: CustomScrollView(
             restorationId: 'list',
             slivers: <Widget>[

experimental/veggieseasons/test/restoration_test.dart

@@ -43,27 +43,32 @@ void main() {
     expect(find.text('Grapes'), findsNothing);
     expect(find.text('Figs'), findsOneWidget);
     expect(find.text('Serving info'), findsOneWidget);
-    expect(tester.widget<CupertinoSwitch>(find.byType(CupertinoSwitch)).value, isFalse);
+    expect(tester.widget<CupertinoSwitch>(find.byType(CupertinoSwitch)).value,
+        isFalse);
     await tester.tap(find.byType(CupertinoSwitch));
     await tester.pumpAndSettle();
-    expect(tester.widget<CupertinoSwitch>(find.byType(CupertinoSwitch)).value, isTrue);
+    expect(tester.widget<CupertinoSwitch>(find.byType(CupertinoSwitch)).value,
+        isTrue);
 
     // Current details page is restored.
     await tester.restartAndRestore();
     expect(find.text('Grapes'), findsNothing);
     expect(find.text('Figs'), findsOneWidget);
     expect(find.text('Serving info'), findsOneWidget);
-    expect(tester.widget<CupertinoSwitch>(find.byType(CupertinoSwitch)).value, isTrue);
+    expect(tester.widget<CupertinoSwitch>(find.byType(CupertinoSwitch)).value,
+        isTrue);
 
     await tester.tap(find.text('Trivia'));
     await tester.pumpAndSettle();
     expect(find.text('Serving info'), findsNothing);
-    expect(find.text("Which of these isn't a variety of figs?"), findsOneWidget);
+    expect(
+        find.text("Which of these isn't a variety of figs?"), findsOneWidget);
 
     // Restores to trivia page.
     await tester.restartAndRestore();
     expect(find.text('Serving info'), findsNothing);
-    expect(find.text("Which of these isn't a variety of figs?"), findsOneWidget);
+    expect(
+        find.text("Which of these isn't a variety of figs?"), findsOneWidget);
 
     await tester.tap(find.text('Brown Turkey'));
     await tester.pumpAndSettle();
@@ -92,13 +97,15 @@ void main() {
     await tester.tap(find.text('My Garden'));
     await tester.pumpAndSettle();
 
-    expect(find.text('My Garden'), findsNWidgets(2)); // Name of the tap & title of page.
+    expect(find.text('My Garden'),
+        findsNWidgets(2)); // Name of the tap & title of page.
     expect(find.text('Grapes'), findsNothing);
     expect(find.text('Figs'), findsOneWidget);
 
     // Restores the current selected tab.
     await tester.restartAndRestore();
-    expect(find.text('My Garden'), findsNWidgets(2)); // Name of the tap & title of page.
+    expect(find.text('My Garden'),
+        findsNWidgets(2)); // Name of the tap & title of page.
     expect(find.text('Grapes'), findsNothing);
     expect(find.text('Figs'), findsOneWidget);
     expect(find.text('Apples'), findsNothing);
@@ -109,7 +116,8 @@ void main() {
 
     expect(find.text('Apples'), findsOneWidget);
     expect(find.text('Tangelo'), findsNothing);
-    await tester.enterText(find.byType(CupertinoTextField).hitTestable(), 'Tan');
+    await tester.enterText(
+        find.byType(CupertinoTextField).hitTestable(), 'Tan');
     await tester.pumpAndSettle();
     expect(find.text('Apples'), findsNothing);
     expect(find.text('Tangelo'), findsOneWidget);
@@ -129,7 +137,7 @@ void main() {
 
     expect(find.text('Tangelo'), findsOneWidget);
     expect(find.text('Serving info'), findsOneWidget);
-    
+
     // Restores details page
     await tester.restartAndRestore();
     expect(find.text('Tangelo'), findsOneWidget);

experimental/web_dashboard/lib/src/auth/firebase.dart

@@ -54,4 +54,3 @@ class _FirebaseUser implements User {
 
   _FirebaseUser(this.uid);
 }
-

experimental/web_dashboard/lib/src/auth/mock.dart

@@ -13,7 +13,7 @@ class MockAuthService implements Auth {
   Future<User> signIn() async {
     // Sign in will randomly fail 25% of the time.
     var random = Random();
-    if (random.nextInt(4) == 0)  {
+    if (random.nextInt(4) == 0) {
       throw SignInException();
     }
     return MockUser();

experimental/web_dashboard/lib/src/pages/sign_in.dart

@@ -95,7 +95,7 @@ class _SignInButtonState extends State<SignInButton> {
   }
 
   void _showError() {
-    Scaffold.of(context).showSnackBar(
+    ScaffoldMessenger.of(context).showSnackBar(
       SnackBar(
         content: Text('Unable to sign in.'),
       ),

experimental/web_dashboard/tool/grind.dart

@@ -26,7 +26,8 @@ void runWeb() {
 @Task()
 void runFirebase() {
   run('flutter',
-      arguments: 'run -d web --web-port=5000 lib/main_firebase.dart '.split(' '));
+      arguments:
+          'run -d web --web-port=5000 lib/main_firebase.dart '.split(' '));
 }
 
 @Task()