Files
stream-chat-flutter/packages/stream_chat_flutter/test/utils/golden.dart
T

59 lines
1.9 KiB
Dart

import 'dart:async';
import 'dart:typed_data';
import 'package:flutter/foundation.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:golden_toolkit/golden_toolkit.dart';
import 'package:golden_toolkit/src/testing_tools.dart';
import 'package:path/path.dart' as path;
const double _kGoldenDiffTolerance = 0.05;
/// Wrapper function for golden tests.
Future<void> customExpectGoldenMatches(
WidgetTester tester,
String name, {
bool? autoHeight,
Finder? finder,
CustomPump? customPump,
@Deprecated('''
This method level parameter will be removed in an upcoming release. This can be configured globally. If you have concerns, please file an issue with your use case.''') bool? skip,
}) {
final goldenPath = path.join('test/src/goldens');
print('goldenPath: $goldenPath');
goldenFileComparator = CustomGoldenFileComparator(Uri.parse(goldenPath));
return compareWithGolden(
tester,
name,
autoHeight: autoHeight,
finder: finder,
customPump: customPump,
skip: skip,
// This value is actually ignored. We are forced to pass it because the
// downstream API is structured poorly. This should be refactored.
device: Device.phone,
fileNameFactory: (String name, Device device) =>
GoldenToolkit.configuration.fileNameFactory(name),
);
}
class CustomGoldenFileComparator extends LocalFileComparator {
CustomGoldenFileComparator(Uri testFile) : super(testFile);
@override
Future<bool> compare(Uint8List imageBytes, Uri golden) async {
print('golden.toString(): ${golden.toString()}');
final result = await GoldenFileComparator.compareLists(
imageBytes,
await getGoldenBytes(golden),
);
if (!result.passed && result.diffPercent > _kGoldenDiffTolerance) {
final error = await generateFailureOutput(result, golden, basedir);
throw FlutterError(error);
}
return result.passed;
}
}