Add NetworkAdaptor to dart:io.

tests/standalone/io/network_interface_test.dart

Index: tests/standalone/io/network_interface_test.dart
diff --git a/tests/standalone/io/network_interface_test.dart b/tests/standalone/io/network_interface_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..ee6a25e9f9d7b092488b5b1f84f2368d13ff6f25
--- /dev/null
+++ b/tests/standalone/io/network_interface_test.dart
@@ -0,0 +1,39 @@
+// Copyright (c) 2013, 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:io';
+
+import "package:expect/expect.dart";
+
+
+void testListLoopback() {
+  NetworkInterface.list(includeLoopback: false).then((list) {
+    for (var i in list) {
+      for (var a in i.addresses) {
+        Expect.isFalse(a.isLoopback);
+      }
+    }
+  });
+
+  NetworkInterface.list(includeLoopback: true).then((list) {
+    Expect.isTrue(list.any((i) => i.addresses.any((a) => a.isLoopback)));
+  });
+}
+
+
+void testListLinkLocal() {
+  NetworkInterface.list(includeLinkLocal: false).then((list) {
+    for (var i in list) {
+      for (var a in i.addresses) {
+        Expect.isFalse(a.isLinkLocal);
+      }
+    }
+  });
+}
+
+
+void main() {
+  testListLoopback();
+  testListLinkLocal();
+}