Add:创建 flutter go web 版

packages/flutter_web/test/localizations_test.dart

@@ -0,0 +1,98 @@
+// Copyright 2016 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_test/flutter_web_test.dart';
+
+void main() {
+  testWidgets(
+      'English translations exist for all MaterialLocalizations properties',
+      (WidgetTester tester) async {
+    const MaterialLocalizations localizations = DefaultMaterialLocalizations();
+
+    expect(localizations.openAppDrawerTooltip, isNotNull);
+    expect(localizations.backButtonTooltip, isNotNull);
+    expect(localizations.closeButtonTooltip, isNotNull);
+    expect(localizations.deleteButtonTooltip, isNotNull);
+    expect(localizations.nextMonthTooltip, isNotNull);
+    expect(localizations.previousMonthTooltip, isNotNull);
+    expect(localizations.nextPageTooltip, isNotNull);
+    expect(localizations.previousPageTooltip, isNotNull);
+    expect(localizations.showMenuTooltip, isNotNull);
+    expect(localizations.licensesPageTitle, isNotNull);
+    expect(localizations.rowsPerPageTitle, isNotNull);
+    expect(localizations.cancelButtonLabel, isNotNull);
+    expect(localizations.closeButtonLabel, isNotNull);
+    expect(localizations.continueButtonLabel, isNotNull);
+    expect(localizations.copyButtonLabel, isNotNull);
+    expect(localizations.cutButtonLabel, isNotNull);
+    expect(localizations.okButtonLabel, isNotNull);
+    expect(localizations.pasteButtonLabel, isNotNull);
+    expect(localizations.selectAllButtonLabel, isNotNull);
+    expect(localizations.viewLicensesButtonLabel, isNotNull);
+    expect(localizations.modalBarrierDismissLabel, isNotNull);
+    expect(localizations.drawerLabel, isNotNull);
+    expect(localizations.popupMenuLabel, isNotNull);
+    expect(localizations.dialogLabel, isNotNull);
+    expect(localizations.alertDialogLabel, isNotNull);
+    expect(localizations.searchFieldLabel, isNotNull);
+    expect(localizations.reorderItemUp, isNotNull);
+    expect(localizations.reorderItemDown, isNotNull);
+    expect(localizations.reorderItemLeft, isNotNull);
+    expect(localizations.reorderItemRight, isNotNull);
+    expect(localizations.reorderItemToEnd, isNotNull);
+    expect(localizations.reorderItemToStart, isNotNull);
+
+    expect(localizations.aboutListTileTitle('FOO'), isNotNull);
+    expect(localizations.aboutListTileTitle('FOO'), contains('FOO'));
+
+    expect(localizations.selectedRowCountTitle(0), isNotNull);
+    expect(localizations.selectedRowCountTitle(1), isNotNull);
+    expect(localizations.selectedRowCountTitle(2), isNotNull);
+    expect(localizations.selectedRowCountTitle(100), isNotNull);
+    expect(
+        localizations.selectedRowCountTitle(0).contains(r'$selectedRowCount'),
+        isFalse);
+    expect(
+        localizations.selectedRowCountTitle(1).contains(r'$selectedRowCount'),
+        isFalse);
+    expect(
+        localizations.selectedRowCountTitle(2).contains(r'$selectedRowCount'),
+        isFalse);
+    expect(
+        localizations.selectedRowCountTitle(100).contains(r'$selectedRowCount'),
+        isFalse);
+
+    expect(localizations.pageRowsInfoTitle(1, 10, 100, true), isNotNull);
+    expect(localizations.pageRowsInfoTitle(1, 10, 100, false), isNotNull);
+    expect(
+        localizations
+            .pageRowsInfoTitle(1, 10, 100, true)
+            .contains(r'$firstRow'),
+        isFalse);
+    expect(
+        localizations.pageRowsInfoTitle(1, 10, 100, true).contains(r'$lastRow'),
+        isFalse);
+    expect(
+        localizations
+            .pageRowsInfoTitle(1, 10, 100, true)
+            .contains(r'$rowCount'),
+        isFalse);
+    expect(
+        localizations
+            .pageRowsInfoTitle(1, 10, 100, false)
+            .contains(r'$firstRow'),
+        isFalse);
+    expect(
+        localizations
+            .pageRowsInfoTitle(1, 10, 100, false)
+            .contains(r'$lastRow'),
+        isFalse);
+    expect(
+        localizations
+            .pageRowsInfoTitle(1, 10, 100, false)
+            .contains(r'$rowCount'),
+        isFalse);
+  });
+}