Add Resource package.

test/loader_file_test.dart

+// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
+// for details. 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:io";
+
+import "package:resource/resource.dart";
+import "package:test/test.dart";
+
+const content = "Rødgrød med fløde";
+
+
+main() {
+  var dir;
+  setUp(() {
+    dir = Directory.systemTemp.createTempSync('testdir');
+  });
+  testFile(Encoding encoding) {
+    group("${encoding.name}", () {
+      var file;
+      var uri;
+      setUp(() {
+        var dirUri = dir.uri;
+        uri = dirUri.resolve("file.txt");
+        file = new File.fromUri(uri);
+        file.createSync();
+        var sink = file.openWrite(encoding: encoding);
+        sink.write(content);
+        sink.close();
+      });
+
+      test("read string", () async {
+        var loader = ResourceLoader.defaultLoader;
+        String string = await loader.readAsString(uri, encoding: encoding);
+        expect(string, content);
+      });
+
+      test("read bytes", () async {
+        var loader = ResourceLoader.defaultLoader;
+        List<int> bytes = await loader.readAsBytes(uri);
+        expect(bytes, encoding.encode(content));
+      });
+
+      test("read byte stream", () async {
+        var loader = ResourceLoader.defaultLoader;
+        Stream<int> bytes = loader.openRead(uri);
+        var buffer = [];
+        await bytes.forEach(buffer.addAll);
+        expect(buffer, encoding.encode(content));
+      });
+
+      tearDown(() {
+        file.deleteSync();
+      });
+    });
+  }
+  testFile(LATIN1);
+  testFile(UTF8);
+
+  tearDown(() {
+    dir.delete(recursive: true);
+  });
+}