flutter/packages/flutter/test/material/raised_button_test.dart

64 lines
2.1 KiB
Dart

// 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('RaisedButton implements debugFillProperties', (WidgetTester tester) async {
final DiagnosticPropertiesBuilder builder = DiagnosticPropertiesBuilder();
RaisedButton(
onPressed: () { },
textColor: const Color(0xFF00FF00),
disabledTextColor: const Color(0xFFFF0000),
color: const Color(0xFF000000),
highlightColor: const Color(0xFF1565C0),
splashColor: const Color(0xFF9E9E9E),
child: const Text('Hello'),
).debugFillProperties(builder);
final List<String> description = builder.properties
.where((DiagnosticsNode node) => !node.isFiltered(DiagnosticLevel.info))
.map((DiagnosticsNode node) => node.toString()).toList();
expect(description, <String>[
'textColor: Color(0xff00ff00)',
'disabledTextColor: Color(0xffff0000)',
'color: Color(0xff000000)',
'highlightColor: Color(0xff1565c0)',
'splashColor: Color(0xff9e9e9e)',
]);
});
testWidgets('Default RaisedButton meets a11y contrast guidelines', (WidgetTester tester) async {
await tester.pumpWidget(
MaterialApp(
home: Scaffold(
body: Center(
child: RaisedButton(
child: const Text('RaisedButton'),
onPressed: () { },
),
),
),
),
);
// Default, not disabled.
await expectLater(tester, meetsGuideline(textContrastGuideline));
// Highlighted (pressed).
final Offset center = tester.getCenter(find.byType(RaisedButton));
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,
);
}