blob: c0207ec2d1ac136c9af59eaaf5cd41506fa70d32 [file] [log] [blame]
import 'dart:typed_data' show Uint8List;
import 'dart:ui' as ui show instantiateImageCodec, Codec;
import 'package:flutter_test/flutter_test.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter/painting.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/services.dart';
import '../painting/image_data.dart';
class PaintingBindingSpy extends BindingBase with ServicesBinding, PaintingBinding {
int counter = 0;
int get instantiateImageCodecCalledCount => counter;
@override
Future<ui.Codec> instantiateImageCodec(Uint8List list) {
counter++;
return ui.instantiateImageCodec(list, decodedCacheRatioCap: decodedCacheRatioCap);
}
@override
void initLicenses() {
// Do not include any licenses, because we're a test, and the LICENSE file
// doesn't get generated for tests.
}
}
void main() {
final PaintingBindingSpy binding = PaintingBindingSpy();
test('decodedCacheRatio', () async {
// final PaintingBinding binding = PaintingBinding.instance;
// Has default value.
expect(binding.decodedCacheRatioCap, isNot(null));
// Can be set.
binding.decodedCacheRatioCap = 1.0;
expect(binding.decodedCacheRatioCap, 1.0);
});
test('instantiateImageCodec used for loading images', () async {
expect(binding.instantiateImageCodecCalledCount, 0);
final Uint8List bytes = Uint8List.fromList(kTransparentImage);
final MemoryImage memoryImage = MemoryImage(bytes);
memoryImage.load(memoryImage);
expect(binding.instantiateImageCodecCalledCount, 1);
});
}