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// 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 'dart:io' show Platform;
import 'dart:ui';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
import 'common.dart';
import 'src/channel.dart';
/// The dart:io implementation of [CallbackManager].
///
/// See also:
///
/// * `_callback_web.dart`, which has the dart:html implementation
CallbackManager get callbackManager => _singletonCallbackManager;
/// IOCallbackManager singleton.
final IOCallbackManager _singletonCallbackManager = IOCallbackManager();
/// Manages communication between `integration_tests` and the `driver_tests`.
///
/// This is the dart:io implementation.
class IOCallbackManager implements CallbackManager {
@override
Future<Map<String, dynamic>> callback(
Map<String, String> params, IntegrationTestResults testRunner) async {
final String command = params['command']!;
Map<String, String> response;
switch (command) {
case 'request_data':
final bool allTestsPassed = await testRunner.allTestsPassed.future;
response = <String, String>{
'message': allTestsPassed
? Response.allTestsPassed(data: testRunner.reportData).toJson()
: Response.someTestsFailed(
testRunner.failureMethodsDetails,
data: testRunner.reportData,
).toJson(),
};
break;
case 'get_health':
response = <String, String>{'status': 'ok'};
break;
default:
throw UnimplementedError('$command is not implemented');
}
return <String, dynamic>{
'isError': false,
'response': response,
};
}
@override
void cleanup() {
// no-op.
// Add any IO platform specific Completer/Future cleanups to here if any
// comes up in the future. For example: `WebCallbackManager.cleanup`.
}
// [convertFlutterSurfaceToImage] has been called and [takeScreenshot] is ready to capture the surface (Android only).
bool _isSurfaceRendered = false;
@override
Future<void> convertFlutterSurfaceToImage() async {
if (!Platform.isAndroid) {
// No-op on other platforms.
return;
}
assert(!_isSurfaceRendered, 'Surface already converted to an image');
await integrationTestChannel.invokeMethod<void>(
'convertFlutterSurfaceToImage',
);
_isSurfaceRendered = true;
addTearDown(() async {
assert(_isSurfaceRendered, 'Surface is not an image');
await integrationTestChannel.invokeMethod<void>(
'revertFlutterImage',
);
_isSurfaceRendered = false;
});
}
@override
Future<Map<String, dynamic>> takeScreenshot(String screenshot) async {
if (Platform.isAndroid && !_isSurfaceRendered) {
throw StateError('Call convertFlutterSurfaceToImage() before taking a screenshot');
}
integrationTestChannel.setMethodCallHandler(_onMethodChannelCall);
final List<int>? rawBytes = await integrationTestChannel.invokeMethod<List<int>>(
'captureScreenshot',
<String, dynamic>{'name': screenshot},
);
if (rawBytes == null) {
throw StateError('Expected a list of bytes, but instead captureScreenshot returned null');
}
return <String, dynamic>{
'screenshotName': screenshot,
'bytes': rawBytes,
};
}
Future<dynamic> _onMethodChannelCall(MethodCall call) async {
switch (call.method) {
case 'scheduleFrame':
PlatformDispatcher.instance.scheduleFrame();
break;
}
return null;
}
}