| // 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); |
| } |