blob: 3e0421ae405e0337f67957f1df78cea5b66a1585 [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/foundation.dart';
import 'hardware_keyboard.dart';
/// Override the transit mode with which key events are simulated.
/// Setting [debugKeyEventSimulatorTransitModeOverride] is a good way to make
/// certain tests simulate the behavior of different type of platforms in terms
/// of their extent of support for keyboard API.
KeyDataTransitMode? debugKeyEventSimulatorTransitModeOverride;
/// Returns true if none of the widget library debug variables have been changed.
/// This function is used by the test framework to ensure that debug variables
/// haven't been inadvertently changed.
/// See [the services library](services/services-library.html) for a complete list.
bool debugAssertAllServicesVarsUnset(String reason) {
assert(() {
if (debugKeyEventSimulatorTransitModeOverride != null) {
throw FlutterError(reason);
return true;
return true;