44 lines
1.5 KiB
Dart
44 lines
1.5 KiB
Dart
// Copyright 2014 The Flutter 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/material.dart';
|
|
import 'package:flutter_test/flutter_test.dart';
|
|
|
|
void main() {
|
|
testWidgets("builder doesn't get called if app doesn't change", (WidgetTester tester) async {
|
|
final log = <String>[];
|
|
final Widget app = MaterialApp(
|
|
home: const Placeholder(),
|
|
builder: (BuildContext context, Widget? child) {
|
|
log.add('build');
|
|
expect(Directionality.of(context), TextDirection.ltr);
|
|
expect(child, isA<FocusScope>());
|
|
return const Placeholder();
|
|
},
|
|
);
|
|
await tester.pumpWidget(Directionality(textDirection: TextDirection.rtl, child: app));
|
|
expect(log, <String>['build']);
|
|
await tester.pumpWidget(Directionality(textDirection: TextDirection.ltr, child: app));
|
|
expect(log, <String>['build']);
|
|
});
|
|
|
|
testWidgets("builder doesn't get called if app doesn't change", (WidgetTester tester) async {
|
|
final log = <String>[];
|
|
await tester.pumpWidget(
|
|
MaterialApp(
|
|
home: Builder(
|
|
builder: (BuildContext context) {
|
|
log.add('build');
|
|
expect(Directionality.of(context), TextDirection.rtl);
|
|
return const Placeholder();
|
|
},
|
|
),
|
|
builder: (BuildContext context, Widget? child) {
|
|
return Directionality(textDirection: TextDirection.rtl, child: child!);
|
|
},
|
|
),
|
|
);
|
|
expect(log, <String>['build']);
|
|
});
|
|
}
|