Implement QuicHttpStream::GetLoadTimingInfo

net/url_request/url_request_quic_unittest.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 <memory>
+
+#include "base/files/file_path.h"
+#include "base/macros.h"
+#include "base/memory/ptr_util.h"
+#include "base/run_loop.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/stringprintf.h"
+#include "net/base/load_timing_info.h"
+#include "net/cert/mock_cert_verifier.h"
+#include "net/dns/mapped_host_resolver.h"
+#include "net/dns/mock_host_resolver.h"
+#include "net/quic/chromium/crypto/proof_source_chromium.h"
+#include "net/quic/test_tools/crypto_test_utils.h"
+#include "net/test/cert_test_util.h"
+#include "net/test/gtest_util.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"
+#include "net/tools/quic/test_tools/quic_in_memory_cache_peer.h"
+#include "net/url_request/url_request.h"
+#include "net/url_request/url_request_test_util.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
+
+namespace net {
+
+namespace {
+
+// This must match the certificate used (quic_test.example.com.crt and
+// quic_test.example.com.key.pkcs8).
+const int kTestServerPort = 6121;
+const char kTestServerHost[] = "test.example.com:6121";
+// Used as a simple response from the server.
+const char kHelloPath[] = "/hello.txt";
+const char kHelloBodyValue[] = "Hello from QUIC Server";
+const int kHelloStatus = 200;
+
+class URLRequestQuicTest : public ::testing::Test {
+ protected:
+  URLRequestQuicTest() : context_(new TestURLRequestContext(true)) {
+    StartQuicServer();
+
+    std::unique_ptr<HttpNetworkSession::Params> params(
+        new HttpNetworkSession::Params);
+    CertVerifyResult verify_result;
+    verify_result.verified_cert = ImportCertFromFile(
+        GetTestCertsDirectory(), "quic_test.example.com.crt");
+    cert_verifier_.AddResultForCertAndHost(verify_result.verified_cert.get(),
+                                           "test.example.com", verify_result,
+                                           OK);
+    verify_result.verified_cert = ImportCertFromFile(
+        GetTestCertsDirectory(), "quic_test_ecc.example.com.crt");
+    cert_verifier_.AddResultForCertAndHost(verify_result.verified_cert.get(),
+                                           "test.example.com", verify_result,
+                                           OK);
+    // To simplify the test, and avoid the race with the HTTP request, we force
+    // QUIC for these requests.
+    params->origins_to_force_quic_on.insert(
+        HostPortPair::FromString(kTestServerHost));
+    params->cert_verifier = &cert_verifier_;
+    params->enable_quic = true;
+    params->host_resolver = host_resolver_.get();
+    context_->set_http_network_session_params(std::move(params));
+    context_->set_cert_verifier(&cert_verifier_);
+    context_->Init();
+  }
+
+  void TearDown() override {
+    if (server_)
+      server_->Shutdown();
+  }
+
+  std::unique_ptr<TestURLRequestContext> context_;
+
+ private:
+  void StartQuicServer() {
+    // Set up in-memory cache.
+    test::QuicInMemoryCachePeer::ResetForTests();
+    QuicInMemoryCache::GetInstance()->AddSimpleResponse(
+        kTestServerHost, kHelloPath, kHelloStatus, kHelloBodyValue);
+    net::QuicConfig config;
+    // Set up server certs.
+    std::unique_ptr<net::ProofSourceChromium> proof_source(
+        new net::ProofSourceChromium());
+    base::FilePath directory = GetTestCertsDirectory();
+    CHECK(proof_source->Initialize(
+        directory.Append(FILE_PATH_LITERAL("quic_test.example.com.crt")),
+        directory.Append(FILE_PATH_LITERAL("quic_test.example.com.key.pkcs8")),
+        directory.Append(FILE_PATH_LITERAL("quic_test.example.com.key.sct"))));
+    server_.reset(new QuicSimpleServer(
+        test::CryptoTestUtils::ProofSourceForTesting(), config,
+        net::QuicCryptoServerConfig::ConfigOptions(), AllSupportedVersions()));
+    int rv = server_->Listen(
+        net::IPEndPoint(net::IPAddress::IPv4AllZeros(), kTestServerPort));
+    EXPECT_GE(rv, 0) << "Quic server fails to start";
+
+    std::unique_ptr<MockHostResolver> resolver(new MockHostResolver());
+    resolver->rules()->AddRule("test.example.com", "127.0.0.1");
+    host_resolver_.reset(new MappedHostResolver(std::move(resolver)));
+    // Use a mapped host resolver so that request for test.example.com (port 80)
+    // reach the server running on localhost.
+    std::string map_rule = "MAP test.example.com test.example.com:" +
+                           base::IntToString(server_->server_address().port());
+    EXPECT_TRUE(host_resolver_->AddRuleFromString(map_rule));
+  }
+
+  std::unique_ptr<MappedHostResolver> host_resolver_;
+  std::unique_ptr<QuicSimpleServer> server_;
+  MockCertVerifier cert_verifier_;
+};
+
+// A URLRequest::Delegate that checks LoadTimingInfo when response headers are
+// received.
+class CheckLoadTimingDelegate : public TestDelegate {
+ public:
+  CheckLoadTimingDelegate(bool session_reused)
+      : session_reused_(session_reused) {}
+  void OnResponseStarted(URLRequest* request, int error) override {
+    TestDelegate::OnResponseStarted(request, error);
+    LoadTimingInfo load_timing_info;
+    request->GetLoadTimingInfo(&load_timing_info);
+    assertLoadTimingValid(load_timing_info, session_reused_);
+  }
+
+ private:
+  void assertLoadTimingValid(const LoadTimingInfo& load_timing_info,
+                             bool session_reused) {
+    EXPECT_EQ(session_reused, load_timing_info.socket_reused);
+
+    // If |session_reused| is true, these fields should all be null, non-null
+    // otherwise.
+    EXPECT_EQ(session_reused,
+              load_timing_info.connect_timing.connect_start.is_null());
+    EXPECT_EQ(session_reused,
+              load_timing_info.connect_timing.connect_end.is_null());
+    EXPECT_EQ(session_reused,
+              load_timing_info.connect_timing.ssl_start.is_null());
+    EXPECT_EQ(session_reused,
+              load_timing_info.connect_timing.ssl_end.is_null());
+    EXPECT_EQ(load_timing_info.connect_timing.connect_start,
+              load_timing_info.connect_timing.ssl_start);
+    EXPECT_EQ(load_timing_info.connect_timing.connect_end,
+              load_timing_info.connect_timing.ssl_end);
+
+    EXPECT_EQ(session_reused,
+              load_timing_info.connect_timing.dns_start.is_null());
+    EXPECT_EQ(session_reused,
+              load_timing_info.connect_timing.dns_end.is_null());
+  }
+
+  bool session_reused_;
+
+  DISALLOW_COPY_AND_ASSIGN(CheckLoadTimingDelegate);
+};
+
+}  // namespace
+
+TEST_F(URLRequestQuicTest, TestGetRequest) {
+  CheckLoadTimingDelegate delegate(false);
+  std::string url =
+      base::StringPrintf("https://%s%s", kTestServerHost, kHelloPath);
+  std::unique_ptr<URLRequest> request =
+      context_->CreateRequest(GURL(url), DEFAULT_PRIORITY, &delegate);
+
+  request->Start();
+  ASSERT_TRUE(request->is_pending());
+  base::RunLoop().Run();
+
+  EXPECT_TRUE(request->status().is_success());
+}
+
+// Tests that if two requests use the same QUIC session, the second request
+// should not have |LoadTimingInfo::connect_timing|.
+TEST_F(URLRequestQuicTest, TestTwoRequests) {
+  CheckLoadTimingDelegate delegate(false);

[Ryan Hamilton, 2016/09/13 20:54:08]

Thanks for doing this!! We have net/quic/chromium/quic_end_to_end_unittest.cc
but that only tests at the transaction level not the URLRequest level.

[xunjieli, 2016/09/14 15:07:46]

No problem! Yes, I copied over the test fixture setup from
quic_end_to_end_unittest.cc. There's a bit of duplicated test code, but it's
nice to have them on a higher layer (URLRequest layer) :)

+  std::string url =
+      base::StringPrintf("https://%s%s", kTestServerHost, kHelloPath);
+  std::unique_ptr<URLRequest> request =
+      context_->CreateRequest(GURL(url), DEFAULT_PRIORITY, &delegate);
+
+  CheckLoadTimingDelegate delegate2(true);
+  std::unique_ptr<URLRequest> request2 =
+      context_->CreateRequest(GURL(url), DEFAULT_PRIORITY, &delegate2);
+  request->Start();
+  request2->Start();
+  ASSERT_TRUE(request->is_pending());
+  base::RunLoop().Run();
+
+  EXPECT_TRUE(request->status().is_success());
+  EXPECT_TRUE(request2->status().is_success());
+}
+
+}  // namespace net