blob: 0cc3ddd7592190fa39916cd07022d22b91dd7f6a [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 'dart:async';
import 'dart:convert';
import 'dart:typed_data';
import 'package:flutter/foundation.dart';
import 'package:flutter/painting.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
class TestAssetBundle extends CachingAssetBundle {
Map<String, int> loadCallCount = <String, int>{};
@override
Future<ByteData> load(String key) async {
if (key == 'AssetManifest.json')
return ByteData.view(Uint8List.fromList(const Utf8Encoder().convert('{"one": ["one"]}')).buffer);
loadCallCount[key] = loadCallCount[key] ?? 0 + 1;
if (key == 'one')
return ByteData(1)..setInt8(0, 49);
throw FlutterError('key not found');
}
}
void main() {
test('Caching asset bundle test', () async {
final TestAssetBundle bundle = TestAssetBundle();
final ByteData assetData = await bundle.load('one');
expect(assetData.getInt8(0), equals(49));
expect(bundle.loadCallCount['one'], 1);
final String assetString = await bundle.loadString('one');
expect(assetString, equals('1'));
expect(bundle.loadCallCount['one'], 1);
Object loadException;
try {
await bundle.loadString('foo');
} catch (e) {
loadException = e;
}
expect(loadException, isFlutterError);
});
test('AssetImage.obtainKey succeeds with ImageConfiguration.empty', () async {
// This is a regression test for https://github.com/flutter/flutter/issues/12392
final AssetImage assetImage = AssetImage('one', bundle: TestAssetBundle());
final AssetBundleImageKey key = await assetImage.obtainKey(ImageConfiguration.empty);
expect(key.name, 'one');
expect(key.scale, 1.0);
});
test('NetworkAssetBundle control test', () async {
final Uri uri = Uri.http('example.org', '/path');
final NetworkAssetBundle bundle = NetworkAssetBundle(uri);
FlutterError error;
try {
await bundle.load('key');
} on FlutterError catch (e) {
error = e;
}
expect(error, isNotNull);
expect(error.diagnostics.length, 2);
expect(error.diagnostics.last, isA<IntProperty>());
expect(
error.toStringDeep(),
'FlutterError\n'
' Unable to load asset: key\n'
' HTTP status code: 404\n',
);
}, skip: true);
}