Implement working tests for the simple QUIC client classes.

net/tools/quic/quic_simple_client_test.cc

 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include <dirent.h>
-#include <stdio.h>
+#include "net/tools/quic/quic_simple_client.h"
 
 #include "base/basictypes.h"
 #include "base/strings/string_util.h"
 #include "net/quic/test_tools/quic_test_utils.h"
-#include "net/tools/epoll_server/epoll_server.h"
-#include "net/tools/quic/quic_client.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-using net::EpollServer;
-
 namespace net {
 namespace tools {
 namespace test {
-namespace {
 
-int NumOpenFDs() {
-  int number_of_open_fds = 0;
-  char buf[256];
-  struct dirent* dp;
-
-  base::snprintf(buf, arraysize(buf), "/proc/%i/fd/", getpid());
-  DIR* dir = opendir(buf);
-  while ((dp = readdir(dir)) != NULL)
-    number_of_open_fds++;
-  closedir(dir);
-
-  return number_of_open_fds;
-}
-
-// Creates a new QuicClient and Initializes it. Caller is responsible for
-// deletion.
-QuicClient* CreateAndInitializeQuicClient(EpollServer* eps, uint16 port) {
-  IPEndPoint server_address(IPEndPoint(net::test::Loopback4(), port));
+TEST(QuicSimpleClientTest, Initialize) {
+  IPEndPoint server_address(IPEndPoint(net::test::Loopback4(), 80));
   QuicServerId server_id("hostname", server_address.port(), false,
                          PRIVACY_MODE_DISABLED);
   QuicVersionVector versions = QuicSupportedVersions();
-  QuicClient* client = new QuicClient(server_address, server_id, versions, eps);
-  EXPECT_TRUE(client->Initialize());
-  return client;
+  QuicSimpleClient client(server_address, server_id, versions);
+  EXPECT_TRUE(client.Initialize());
 }
 
-TEST(QuicClientTest, DoNotLeakFDs) {
-  // Make sure that the QuicClient doesn't leak FDs. Doing so could cause port
-  // exhaustion in long running processes which repeatedly create clients.
-
-  // Record initial number of FDs, after creation of EpollServer.
-  EpollServer eps;
-  int number_of_open_fds = NumOpenFDs();
-
-  // Create a number of clients, initialize them, and verify this has resulted
-  // in additional FDs being opened.
-  const int kNumClients = 5;
-  for (int i = 0; i < kNumClients; ++i) {
-    std::unique_ptr<QuicClient> client(
-        CreateAndInitializeQuicClient(&eps, net::test::kTestPort + i));
-
-    // Initializing the client will create a new FD.
-    EXPECT_LT(number_of_open_fds, NumOpenFDs());
-  }
-
-  // The FDs created by the QuicClients should now be closed.
-  EXPECT_EQ(number_of_open_fds, NumOpenFDs());
-}
-
-}  // namespace
 }  // namespace test
 }  // namespace tools
 }  // namespace net