blob: 84f7f4a6b4b70bb435ddb145133ae83816605e17 [file] [log] [blame]
// 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_test/flutter_test.dart';
import 'package:flutter/material.dart';
void main() {
testWidgets("builder doesn't get called if app doesn't change", (WidgetTester tester) async {
final List<String> log = <String>[];
final Widget app = MaterialApp(
theme: ThemeData(
primarySwatch: Colors.green,
),
home: const Placeholder(),
builder: (BuildContext context, Widget? child) {
log.add('build');
expect(Theme.of(context)!.primaryColor, Colors.green);
expect(Directionality.of(context), TextDirection.ltr);
expect(child, isA<Navigator>());
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 List<String> log = <String>[];
await tester.pumpWidget(
MaterialApp(
theme: ThemeData(
primarySwatch: Colors.yellow,
),
home: Builder(
builder: (BuildContext context) {
log.add('build');
expect(Theme.of(context)!.primaryColor, Colors.yellow);
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']);
});
}