blob: 2740746b2d07dd67fa1a761ea6cb52dbb80101f8 [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.
// @dart = 2.8
import 'dart:async';
import 'dart:convert';
import 'package:flutter/foundation.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_test/flutter_test.dart';
void main() {
typedef InspectorServiceExtensionCallback = FutureOr<Map<String, Object>> Function(Map<String, String> parameters);
class StructureErrorTestWidgetInspectorService extends Object with WidgetInspectorService {
final Map<String, InspectorServiceExtensionCallback> extensions = <String, InspectorServiceExtensionCallback>{};
final Map<String, List<Map<Object, Object>>> eventsDispatched = <String, List<Map<Object, Object>>>{};
void registerServiceExtension({
@required String name,
@required FutureOr<Map<String, Object>> callback(Map<String, String> parameters),
}) {
extensions[name] = callback;
void postEvent(String eventKind, Map<Object, Object> eventData) {
List<Map<Object, Object>> getEventsDispatched(String eventKind) {
return eventsDispatched.putIfAbsent(eventKind, () => <Map<Object, Object>>[]);
Iterable<Map<Object, Object>> getServiceExtensionStateChangedEvents(String extensionName) {
return getEventsDispatched('Flutter.ServiceExtensionStateChanged')
.where((Map<Object, Object> event) => event['extension'] == extensionName);
Future<String> testBoolExtension(String name, Map<String, String> arguments) async {
expect(extensions, contains(name));
// Encode and decode to JSON to match behavior using a real service
// extension where only JSON is allowed.
return json.decode(json.encode(await extensions[name](arguments)))['enabled'] as String;
static void runTests() {
final StructureErrorTestWidgetInspectorService service = StructureErrorTestWidgetInspectorService();
WidgetInspectorService.instance = service;
test('ext.flutter.inspector.structuredErrors still report error to original on error', () async {
final FlutterExceptionHandler oldHandler = FlutterError.onError;
FlutterErrorDetails actualError;
// Creates a spy onError. This spy needs to be set before widgets binding
// initializes.
FlutterError.onError = (FlutterErrorDetails details) {
actualError = details;
try {
// Enables structured errors.
expect(await service.testBoolExtension(
'structuredErrors', <String, String>{'enabled': 'true'}),
// Creates an error.
final FlutterErrorDetails expectedError = FlutterErrorDetails(
library: 'rendering library',
context: ErrorDescription('during layout'),
exception: StackTrace.current,
// Validates the spy still received an error.
expect(actualError, expectedError);
} finally {
FlutterError.onError = oldHandler;