net/test/embedded_test_server/embedded_test_server_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "net/test/embedded_test_server/embedded_test_server.h"
   6
   7 #include "base/strings/stringprintf.h"
   8 #include "base/threading/thread.h"
   9 #include "net/http/http_response_headers.h"
  10 #include "net/test/embedded_test_server/http_request.h"
  11 #include "net/test/embedded_test_server/http_response.h"
  12 #include "net/url_request/url_fetcher.h"
  13 #include "net/url_request/url_fetcher_delegate.h"
  14 #include "net/url_request/url_request_test_util.h"
  15 #include "testing/gtest/include/gtest/gtest.h"
  16
  17 namespace net {
  18 namespace test_server {
  19
  20 namespace {
  21
  22 // Gets the content from the given URLFetcher.
  23 std::string GetContentFromFetcher(const URLFetcher& fetcher) {
  24   std::string result;
  25   const bool success = fetcher.GetResponseAsString(&result);
  26   EXPECT_TRUE(success);
  27   return result;
  28 }
  29
  30 // Gets the content type from the given URLFetcher.
  31 std::string GetContentTypeFromFetcher(const URLFetcher& fetcher) {
  32   const HttpResponseHeaders* headers = fetcher.GetResponseHeaders();
  33   if (headers) {
  34     std::string content_type;
  35     if (headers->GetMimeType(&content_type))
  36       return content_type;
  37   }
  38   return std::string();
  39 }
  40
  41 }  // namespace
  42
  43 class EmbeddedTestServerTest: public testing::Test,
  44                               public URLFetcherDelegate {
  45  public:
  46   EmbeddedTestServerTest()
  47       : num_responses_received_(0),
  48         num_responses_expected_(0),
  49         io_thread_("io_thread") {
  50   }
  51
  52   void SetUp() override {
  53     base::Thread::Options thread_options;
  54     thread_options.message_loop_type = base::MessageLoop::TYPE_IO;
  55     ASSERT_TRUE(io_thread_.StartWithOptions(thread_options));
  56
  57     request_context_getter_ = new TestURLRequestContextGetter(
  58         io_thread_.message_loop_proxy());
  59
  60     server_.reset(new EmbeddedTestServer);
  61     ASSERT_TRUE(server_->InitializeAndWaitUntilReady());
  62   }
  63
  64   void TearDown() override {
  65     ASSERT_TRUE(server_->ShutdownAndWaitUntilComplete());
  66   }
  67
  68   // URLFetcherDelegate override.
  69   void OnURLFetchComplete(const URLFetcher* source) override {
  70     ++num_responses_received_;
  71     if (num_responses_received_ == num_responses_expected_)
  72       base::MessageLoop::current()->Quit();
  73   }
  74
  75   // Waits until the specified number of responses are received.
  76   void WaitForResponses(int num_responses) {
  77     num_responses_received_ = 0;
  78     num_responses_expected_ = num_responses;
  79     // Will be terminated in OnURLFetchComplete().
  80     base::MessageLoop::current()->Run();
  81   }
  82
  83   // Handles |request| sent to |path| and returns the response per |content|,
  84   // |content type|, and |code|. Saves the request URL for verification.
  85   scoped_ptr<HttpResponse> HandleRequest(const std::string& path,
  86                                          const std::string& content,
  87                                          const std::string& content_type,
  88                                          HttpStatusCode code,
  89                                          const HttpRequest& request) {
  90     request_relative_url_ = request.relative_url;
  91
  92     GURL absolute_url = server_->GetURL(request.relative_url);
  93     if (absolute_url.path() == path) {
  94       scoped_ptr<BasicHttpResponse> http_response(new BasicHttpResponse);
  95       http_response->set_code(code);
  96       http_response->set_content(content);
  97       http_response->set_content_type(content_type);
  98       return http_response.Pass();
  99     }
 100
 101     return nullptr;
 102   }
 103
 104  protected:
 105   int num_responses_received_;
 106   int num_responses_expected_;
 107   std::string request_relative_url_;
 108   base::Thread io_thread_;
 109   scoped_refptr<TestURLRequestContextGetter> request_context_getter_;
 110   scoped_ptr<EmbeddedTestServer> server_;
 111 };
 112
 113 TEST_F(EmbeddedTestServerTest, GetBaseURL) {
 114   EXPECT_EQ(base::StringPrintf("http://127.0.0.1:%d/", server_->port()),
 115                                server_->base_url().spec());
 116 }
 117
 118 TEST_F(EmbeddedTestServerTest, GetURL) {
 119   EXPECT_EQ(base::StringPrintf("http://127.0.0.1:%d/path?query=foo",
 120                                server_->port()),
 121             server_->GetURL("/path?query=foo").spec());
 122 }
 123
 124 TEST_F(EmbeddedTestServerTest, RegisterRequestHandler) {
 125   server_->RegisterRequestHandler(
 126       base::Bind(&EmbeddedTestServerTest::HandleRequest,
 127                  base::Unretained(this),
 128                  "/test",
 129                  "<b>Worked!</b>",
 130                  "text/html",
 131                  HTTP_OK));
 132
 133   scoped_ptr<URLFetcher> fetcher(
 134       URLFetcher::Create(server_->GetURL("/test?q=foo"),
 135                               URLFetcher::GET,
 136                               this));
 137   fetcher->SetRequestContext(request_context_getter_.get());
 138   fetcher->Start();
 139   WaitForResponses(1);
 140
 141   EXPECT_EQ(URLRequestStatus::SUCCESS, fetcher->GetStatus().status());
 142   EXPECT_EQ(HTTP_OK, fetcher->GetResponseCode());
 143   EXPECT_EQ("<b>Worked!</b>", GetContentFromFetcher(*fetcher));
 144   EXPECT_EQ("text/html", GetContentTypeFromFetcher(*fetcher));
 145
 146   EXPECT_EQ("/test?q=foo", request_relative_url_);
 147 }
 148
 149 TEST_F(EmbeddedTestServerTest, ServeFilesFromDirectory) {
 150   base::FilePath src_dir;
 151   ASSERT_TRUE(PathService::Get(base::DIR_SOURCE_ROOT, &src_dir));
 152   server_->ServeFilesFromDirectory(
 153       src_dir.AppendASCII("net").AppendASCII("data"));
 154
 155   scoped_ptr<URLFetcher> fetcher(
 156       URLFetcher::Create(server_->GetURL("/test.html"),
 157                               URLFetcher::GET,
 158                               this));
 159   fetcher->SetRequestContext(request_context_getter_.get());
 160   fetcher->Start();
 161   WaitForResponses(1);
 162
 163   EXPECT_EQ(URLRequestStatus::SUCCESS, fetcher->GetStatus().status());
 164   EXPECT_EQ(HTTP_OK, fetcher->GetResponseCode());
 165   EXPECT_EQ("<p>Hello World!</p>", GetContentFromFetcher(*fetcher));
 166   EXPECT_EQ("", GetContentTypeFromFetcher(*fetcher));
 167 }
 168
 169 TEST_F(EmbeddedTestServerTest, DefaultNotFoundResponse) {
 170   scoped_ptr<URLFetcher> fetcher(
 171       URLFetcher::Create(server_->GetURL("/non-existent"),
 172                               URLFetcher::GET,
 173                               this));
 174   fetcher->SetRequestContext(request_context_getter_.get());
 175
 176   fetcher->Start();
 177   WaitForResponses(1);
 178   EXPECT_EQ(URLRequestStatus::SUCCESS, fetcher->GetStatus().status());
 179   EXPECT_EQ(HTTP_NOT_FOUND, fetcher->GetResponseCode());
 180 }
 181
 182 TEST_F(EmbeddedTestServerTest, ConcurrentFetches) {
 183   server_->RegisterRequestHandler(
 184       base::Bind(&EmbeddedTestServerTest::HandleRequest,
 185                  base::Unretained(this),
 186                  "/test1",
 187                  "Raspberry chocolate",
 188                  "text/html",
 189                  HTTP_OK));
 190   server_->RegisterRequestHandler(
 191       base::Bind(&EmbeddedTestServerTest::HandleRequest,
 192                  base::Unretained(this),
 193                  "/test2",
 194                  "Vanilla chocolate",
 195                  "text/html",
 196                  HTTP_OK));
 197   server_->RegisterRequestHandler(
 198       base::Bind(&EmbeddedTestServerTest::HandleRequest,
 199                  base::Unretained(this),
 200                  "/test3",
 201                  "No chocolates",
 202                  "text/plain",
 203                  HTTP_NOT_FOUND));
 204
 205   scoped_ptr<URLFetcher> fetcher1 = scoped_ptr<URLFetcher>(
 206       URLFetcher::Create(server_->GetURL("/test1"),
 207                               URLFetcher::GET,
 208                               this));
 209   fetcher1->SetRequestContext(request_context_getter_.get());
 210   scoped_ptr<URLFetcher> fetcher2 = scoped_ptr<URLFetcher>(
 211       URLFetcher::Create(server_->GetURL("/test2"),
 212                               URLFetcher::GET,
 213                               this));
 214   fetcher2->SetRequestContext(request_context_getter_.get());
 215   scoped_ptr<URLFetcher> fetcher3 = scoped_ptr<URLFetcher>(
 216       URLFetcher::Create(server_->GetURL("/test3"),
 217                               URLFetcher::GET,
 218                               this));
 219   fetcher3->SetRequestContext(request_context_getter_.get());
 220
 221   // Fetch the three URLs concurrently.
 222   fetcher1->Start();
 223   fetcher2->Start();
 224   fetcher3->Start();
 225   WaitForResponses(3);
 226
 227   EXPECT_EQ(URLRequestStatus::SUCCESS, fetcher1->GetStatus().status());
 228   EXPECT_EQ(HTTP_OK, fetcher1->GetResponseCode());
 229   EXPECT_EQ("Raspberry chocolate", GetContentFromFetcher(*fetcher1));
 230   EXPECT_EQ("text/html", GetContentTypeFromFetcher(*fetcher1));
 231
 232   EXPECT_EQ(URLRequestStatus::SUCCESS, fetcher2->GetStatus().status());
 233   EXPECT_EQ(HTTP_OK, fetcher2->GetResponseCode());
 234   EXPECT_EQ("Vanilla chocolate", GetContentFromFetcher(*fetcher2));
 235   EXPECT_EQ("text/html", GetContentTypeFromFetcher(*fetcher2));
 236
 237   EXPECT_EQ(URLRequestStatus::SUCCESS, fetcher3->GetStatus().status());
 238   EXPECT_EQ(HTTP_NOT_FOUND, fetcher3->GetResponseCode());
 239   EXPECT_EQ("No chocolates", GetContentFromFetcher(*fetcher3));
 240   EXPECT_EQ("text/plain", GetContentTypeFromFetcher(*fetcher3));
 241 }
 242
 243 // Below test exercises EmbeddedTestServer's ability to cope with the situation
 244 // where there is no MessageLoop available on the thread at EmbeddedTestServer
 245 // initialization and/or destruction.
 246
 247 typedef std::tr1::tuple<bool, bool> ThreadingTestParams;
 248
 249 class EmbeddedTestServerThreadingTest
 250     : public testing::TestWithParam<ThreadingTestParams> {};
 251
 252 class EmbeddedTestServerThreadingTestDelegate
 253     : public base::PlatformThread::Delegate,
 254       public URLFetcherDelegate {
 255  public:
 256   EmbeddedTestServerThreadingTestDelegate(
 257       bool message_loop_present_on_initialize,
 258       bool message_loop_present_on_shutdown)
 259       : message_loop_present_on_initialize_(message_loop_present_on_initialize),
 260         message_loop_present_on_shutdown_(message_loop_present_on_shutdown) {}
 261
 262   // base::PlatformThread::Delegate:
 263   void ThreadMain() override {
 264     scoped_refptr<base::SingleThreadTaskRunner> io_thread_runner;
 265     base::Thread io_thread("io_thread");
 266     base::Thread::Options thread_options;
 267     thread_options.message_loop_type = base::MessageLoop::TYPE_IO;
 268     ASSERT_TRUE(io_thread.StartWithOptions(thread_options));
 269     io_thread_runner = io_thread.message_loop_proxy();
 270
 271     scoped_ptr<base::MessageLoop> loop;
 272     if (message_loop_present_on_initialize_)
 273       loop.reset(new base::MessageLoopForIO);
 274
 275     // Create the test server instance.
 276     EmbeddedTestServer server;
 277     base::FilePath src_dir;
 278     ASSERT_TRUE(PathService::Get(base::DIR_SOURCE_ROOT, &src_dir));
 279     ASSERT_TRUE(server.InitializeAndWaitUntilReady());
 280
 281     // Make a request and wait for the reply.
 282     if (!loop)
 283       loop.reset(new base::MessageLoopForIO);
 284
 285     scoped_ptr<URLFetcher> fetcher(URLFetcher::Create(
 286         server.GetURL("/test?q=foo"), URLFetcher::GET, this));
 287     fetcher->SetRequestContext(
 288         new TestURLRequestContextGetter(loop->message_loop_proxy()));
 289     fetcher->Start();
 290     loop->Run();
 291     fetcher.reset();
 292
 293     // Shut down.
 294     if (message_loop_present_on_shutdown_)
 295       loop.reset();
 296
 297     ASSERT_TRUE(server.ShutdownAndWaitUntilComplete());
 298   }
 299
 300   // URLFetcherDelegate override.
 301   void OnURLFetchComplete(const URLFetcher* source) override {
 302     base::MessageLoop::current()->Quit();
 303   }
 304
 305  private:
 306   bool message_loop_present_on_initialize_;
 307   bool message_loop_present_on_shutdown_;
 308
 309   DISALLOW_COPY_AND_ASSIGN(EmbeddedTestServerThreadingTestDelegate);
 310 };
 311
 312 TEST_P(EmbeddedTestServerThreadingTest, RunTest) {
 313   // The actual test runs on a separate thread so it can screw with the presence
 314   // of a MessageLoop - the test suite already sets up a MessageLoop for the
 315   // main test thread.
 316   base::PlatformThreadHandle thread_handle;
 317   EmbeddedTestServerThreadingTestDelegate delegate(
 318       std::tr1::get<0>(GetParam()),
 319       std::tr1::get<1>(GetParam()));
 320   ASSERT_TRUE(base::PlatformThread::Create(0, &delegate, &thread_handle));
 321   base::PlatformThread::Join(thread_handle);
 322 }
 323
 324 INSTANTIATE_TEST_CASE_P(EmbeddedTestServerThreadingTestInstantiation,
 325                         EmbeddedTestServerThreadingTest,
 326                         testing::Combine(testing::Bool(), testing::Bool()));
 327
 328 }  // namespace test_server
 329 }  // namespace net