Third try at landing gRPC refactoring. Previous issue failed on the waterfall

components/grpc_support/test/quic_test_server.cc

 // Copyright 2016 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 "components/cronet/ios/test/quic_test_server.h"
+#include "components/grpc_support/test/quic_test_server.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
+#include "base/strings/stringprintf.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "net/base/ip_address.h"
 #include "net/base/ip_endpoint.h"
 #include "net/quic/chromium/crypto/proof_source_chromium.h"
 #include "net/spdy/spdy_header_block.h"
 #include "net/test/test_data_directory.h"
 #include "net/tools/quic/quic_in_memory_cache.h"
 #include "net/tools/quic/quic_simple_server.h"
 
-namespace cronet {
+namespace grpc_support {
 
 // This must match the certificate used (quic_test.example.com.crt and
 // quic_test.example.com.key.pkcs8).
-const char kTestServerDomain[] = "test.example.com";
-const int kTestServerPort = 6121;
-const char kTestServerHost[] = "test.example.com:6121";
-const char kTestServerUrl[] = "https://test.example.com:6121/hello.txt";
+const char kTestServerHost[] = "test.example.com";
+const char kTestServerUrl[] = "https://test.example.com/hello.txt";
 
 const char kStatusHeader[] = ":status";
 
 const char kHelloPath[] = "/hello.txt";
 const char kHelloBodyValue[] = "Hello from QUIC Server";
 const char kHelloStatus[] = "200";
 
 const char kHelloHeaderName[] = "hello_header";
 const char kHelloHeaderValue[] = "hello header value";
 
 const char kHelloTrailerName[] = "hello_trailer";
 const char kHelloTrailerValue[] = "hello trailer value";
 
 base::Thread* g_quic_server_thread = nullptr;
 net::QuicSimpleServer* g_quic_server = nullptr;
+int g_quic_server_port = 0;
 
 void SetupQuicInMemoryCache() {
   static bool setup_done = false;
   if (setup_done)
     return;
   setup_done = true;
   net::SpdyHeaderBlock headers;
-  headers.AppendValueOrAddHeader(kHelloHeaderName, kHelloHeaderValue);
-  headers.AppendValueOrAddHeader(kStatusHeader, kHelloStatus);
+  headers[kHelloHeaderName] = kHelloHeaderValue;
+  headers[kStatusHeader] =  kHelloStatus;
   net::SpdyHeaderBlock trailers;
-  trailers.AppendValueOrAddHeader(kHelloTrailerName, kHelloTrailerValue);
+  trailers[kHelloTrailerName] = kHelloTrailerValue;
   net::QuicInMemoryCache::GetInstance()->AddResponse(
-      kTestServerHost, kHelloPath, std::move(headers), kHelloBodyValue,
-      std::move(trailers));
+      base::StringPrintf("%s", kTestServerHost),
+      kHelloPath, std::move(headers), kHelloBodyValue, std::move(trailers));
 }
 
 void StartQuicServerOnServerThread(const base::FilePath& test_files_root,
                                    base::WaitableEvent* server_started_event) {
   DCHECK(g_quic_server_thread->task_runner()->BelongsToCurrentThread());
   DCHECK(!g_quic_server);
 
-  // Set up in-memory cache.
-  SetupQuicInMemoryCache();
   net::QuicConfig config;
   // Set up server certs.
   base::FilePath directory;
   directory = test_files_root;
   std::unique_ptr<net::ProofSourceChromium> proof_source(
       new net::ProofSourceChromium());
   CHECK(proof_source->Initialize(
-      directory.Append("quic_test.example.com.crt"),
-      directory.Append("quic_test.example.com.key.pkcs8"),
-      directory.Append("quic_test.example.com.key.sct")));
+      directory.AppendASCII("quic_test.example.com.crt"),
+      directory.AppendASCII("quic_test.example.com.key.pkcs8"),
+      directory.AppendASCII("quic_test.example.com.key.sct")));
   g_quic_server =
       new net::QuicSimpleServer(std::move(proof_source), config,
                                 net::QuicCryptoServerConfig::ConfigOptions(),
                                 net::AllSupportedVersions());
 
-  // Start listening.
+  // Start listening on an unbound port.
   int rv = g_quic_server->Listen(
-      net::IPEndPoint(net::IPAddress::IPv4AllZeros(), kTestServerPort));
+      net::IPEndPoint(net::IPAddress::IPv4AllZeros(), 0));
   CHECK_GE(rv, 0) << "Quic server fails to start";
+  g_quic_server_port = g_quic_server->server_address().port();
+
+  SetupQuicInMemoryCache();
+
   server_started_event->Signal();
 }
 
 void ShutdownOnServerThread(base::WaitableEvent* server_stopped_event) {
   DCHECK(g_quic_server_thread->task_runner()->BelongsToCurrentThread());
   g_quic_server->Shutdown();
   delete g_quic_server;
   g_quic_server = nullptr;
   server_stopped_event->Signal();
 }
 
-// Quic server is currently hardcoded to run on port 6121 of the localhost on
-// the device.
 bool StartQuicTestServer() {
+  LOG(INFO) << g_quic_server_thread;
   DCHECK(!g_quic_server_thread);
   g_quic_server_thread = new base::Thread("quic server thread");
   base::Thread::Options thread_options;
   thread_options.message_loop_type = base::MessageLoop::TYPE_IO;
   bool started = g_quic_server_thread->StartWithOptions(thread_options);
   DCHECK(started);
-  base::FilePath test_files_root;
-  if (!PathService::Get(base::DIR_EXE, &test_files_root))
-    return false;
+  base::FilePath test_files_root = net::GetTestCertsDirectory();
+
   base::WaitableEvent server_started_event(
       base::WaitableEvent::ResetPolicy::MANUAL,
       base::WaitableEvent::InitialState::NOT_SIGNALED);
   g_quic_server_thread->task_runner()->PostTask(
-      FROM_HERE, base::Bind(&StartQuicServerOnServerThread,
-                            test_files_root.Append("net/data/ssl/certificates"),
+      FROM_HERE, base::Bind(&StartQuicServerOnServerThread, test_files_root,
                             &server_started_event));
   server_started_event.Wait();
   return true;
 }
 
 void ShutdownQuicTestServer() {
   if (!g_quic_server_thread)
     return;
   DCHECK(!g_quic_server_thread->task_runner()->BelongsToCurrentThread());
   base::WaitableEvent server_stopped_event(
       base::WaitableEvent::ResetPolicy::MANUAL,
       base::WaitableEvent::InitialState::NOT_SIGNALED);
   g_quic_server_thread->task_runner()->PostTask(
       FROM_HERE, base::Bind(&ShutdownOnServerThread, &server_stopped_event));
   server_stopped_event.Wait();
   delete g_quic_server_thread;
   g_quic_server_thread = nullptr;
 }
 
-}  // namespace cronet
+int GetQuicTestServerPort() {
+  return g_quic_server_port;
+}
+
+}  // namespace grpc_support