blob: 5e7b3c0ffcd20f6565c4b9d8842d1819cfbf3dc9 [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/services.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_test/flutter_test.dart';
/// A mock class to control the return result of Live Text input functions.
class LiveTextInputTester {
LiveTextInputTester() {
TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.setMockMethodCallHandler(SystemChannels.platform, _handler);
bool mockLiveTextInputEnabled = false;
Future<Object?> _handler(MethodCall methodCall) async {
// Need to set Clipboard.hasStrings method handler because when showing the tool bar,
// the Clipboard.hasStrings will also be invoked. If this isn't handled,
// an exception will be thrown.
if (methodCall.method == 'Clipboard.hasStrings') {
return <String, bool>{'value': true};
if (methodCall.method == 'LiveText.isLiveTextInputAvailable') {
return mockLiveTextInputEnabled;
return false;
void dispose() {
assert(TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.checkMockMessageHandler(, _handler));
TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.setMockMethodCallHandler(SystemChannels.platform, null);
/// A function to find the live text button.
Finder findLiveTextButton() => find.byWidgetPredicate((Widget widget) =>
widget is CustomPaint &&
'${widget.painter?.runtimeType}' == '_LiveTextIconPainter',