Reland "Add first part of the network_tester functionality"

webrtc/tools/network_tester/network_tester_unittest.cc

+/*
+ *  Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/tools/network_tester/test_controller.h"
+
+#include "webrtc/base/gunit.h"
+#include "webrtc/test/gtest.h"
+#include "webrtc/test/testsupport/fileutils.h"
+
+namespace webrtc {
+
+TEST(NetworkTesterTest, ServerClient) {
+  TestController client(
+      0, 0, webrtc::test::ResourcePath("network_tester/client_config", "dat"));
+  TestController server(
+      9090, 9090,
+      webrtc::test::ResourcePath("network_tester/server_config", "dat"));
+  client.SendConnectTo("127.0.0.1", 9090);
+  EXPECT_TRUE_WAIT(server.IsTestDone() && client.IsTestDone(), 2000);
+}
+
+}  // namespace webrtc