add web test

Author: renefloor

.github/workflows/web.yaml

@@ -97,7 +97,7 @@ jobs:
 
       # Run all unit-tests with code coverage
       - name: Run unit tests
-        run: flutter test --coverage
+        run: flutter test --coverage --platform chrome
         working-directory: ${{env.source-directory}}
 
       # Upload code coverage information

cached_network_image_web/pubspec.yaml

@@ -17,6 +17,7 @@ dev_dependencies:
   flutter_test:
     sdk: flutter
   flutter_lints: ^1.0.4
+  file: ^6.1.2
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec

cached_network_image_web/test/cached_network_image_web_test.dart

@@ -1,3 +1,113 @@
+import 'dart:async';
+import 'dart:typed_data';
+
+import 'package:cached_network_image_platform_interface'
+    '/cached_network_image_platform_interface.dart' hide ImageLoader;
+import 'package:cached_network_image_web/cached_network_image_web.dart';
+import 'package:flutter/widgets.dart';
+import 'package:flutter_cache_manager/flutter_cache_manager.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'dart:ui' as ui;
+import 'package:file/file.dart';
+
 void main() {
-  // missing tests :(
+  test('loadAsync returns a stream', () {
+    var imageLoader = ImageLoader();
+    var stream = imageLoader.loadAsync(
+        'test.com/image',
+        null,
+        StreamController<ImageChunkEvent>(),
+        decoder,
+        MockCacheManager(),
+        null,
+        null,
+        null,
+        null,
+        ImageRenderMethodForWeb.HttpGet,
+        () => {});
+    expect(stream, isNotNull);
+  });
+}
+
+Future<ui.Codec> decoder(
+  Uint8List bytes, {
+  int? cacheWidth,
+  int? cacheHeight,
+  bool allowUpscaling = false,
+}) {
+  throw UnimplementedError();
+}
+
+class MockCacheManager implements BaseCacheManager {
+  @override
+  Future<void> dispose() {
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<FileInfo> downloadFile(
+    String url, {
+    String? key,
+    Map<String, String>? authHeaders,
+    bool force = false,
+  }) {
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<void> emptyCache() {
+    throw UnimplementedError();
+  }
+
+  @override
+  Stream<FileInfo> getFile(String url,
+      {String? key, Map<String, String>? headers}) {
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<FileInfo?> getFileFromCache(String key,
+      {bool ignoreMemCache = false}) {
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<FileInfo?> getFileFromMemory(String key) {
+    throw UnimplementedError();
+  }
+
+  @override
+  Stream<FileResponse> getFileStream(String url,
+      {String? key, Map<String, String>? headers, bool withProgress = false}) {
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<File> getSingleFile(String url,
+      {String? key, Map<String, String>? headers}) {
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<File> putFile(String url, Uint8List fileBytes,
+      {String? key,
+      String? eTag,
+      Duration maxAge = const Duration(days: 30),
+      String fileExtension = 'file'}) {
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<File> putFileStream(String url, Stream<List<int>> source,
+      {String? key,
+      String? eTag,
+      Duration maxAge = const Duration(days: 30),
+      String fileExtension = 'file'}) {
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<void> removeFile(String key) {
+    throw UnimplementedError();
+  }
 }