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samples/platform_design/test/widget_test.dart

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1.1 KiB

import 'package:flutter/foundation.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:platform_design/main.dart';
void main() {
testWidgets('Can change platform correctly', (tester) async {
await tester.pumpWidget(MyAdaptingApp());
// The test should be able to find the drawer button.
expect(find.byIcon(Icons.menu), findsOneWidget);
// There should be a refresh button.
expect(find.byIcon(Icons.refresh), findsOneWidget);
debugDefaultTargetPlatformOverride = TargetPlatform.iOS;
await tester.pumpWidget(MyAdaptingApp());
// There should now be a large title style nav bar.
expect(find.byType(CupertinoSliverNavigationBar), findsOneWidget);
// There's a tab button for the first tab.
expect(find.byIcon(CupertinoIcons.music_note), findsOneWidget);
// The hamburger button isn't there anymore.
expect(find.byIcon(Icons.menu), findsNothing);
// Since this is a static, undo the change made in the test.
debugDefaultTargetPlatformOverride = null;
});
}