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// Copyright 2019 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/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:flutter/rendering.dart';
void main() {
testWidgets('Default $MaterialButton meets a11y contrast guidelines', (WidgetTester tester) async {
await tester.pumpWidget(
MaterialApp(
home: Scaffold(
body: Center(
child: MaterialButton(
child: const Text('MaterialButton'),
onPressed: () { },
),
),
),
),
);
// Default, not disabled.
await expectLater(tester, meetsGuideline(textContrastGuideline));
// Highlighted (pressed).
final Offset center = tester.getCenter(find.byType(MaterialButton));
await tester.startGesture(center);
await tester.pump(); // Start the splash and highlight animations.
await tester.pump(const Duration(milliseconds: 800)); // Wait for splash and highlight to be well under way.
await expectLater(tester, meetsGuideline(textContrastGuideline));
},
semanticsEnabled: true,
skip: isBrowser,
);
testWidgets('$MaterialButton gets focus when autofocus is set.', (WidgetTester tester) async {
final FocusNode focusNode = FocusNode(debugLabel: 'MaterialButton');
await tester.pumpWidget(
MaterialApp(
home: Center(
child: MaterialButton(
focusNode: focusNode,
onPressed: () {},
child: Container(width: 100, height: 100, color: const Color(0xffff0000)),
),
),
),
);
await tester.pump();
expect(focusNode.hasPrimaryFocus, isFalse);
await tester.pumpWidget(
MaterialApp(
home: Center(
child: MaterialButton(
autofocus: true,
focusNode: focusNode,
onPressed: () {},
child: Container(width: 100, height: 100, color: const Color(0xffff0000)),
),
),
),
);
await tester.pump();
expect(focusNode.hasPrimaryFocus, isTrue);
});
}