components/devtools_http_handler/devtools_http_handler_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 "base/files/file_util.h"
   6 #include "base/files/scoped_temp_dir.h"
   7 #include "base/location.h"
   8 #include "base/run_loop.h"
   9 #include "base/single_thread_task_runner.h"
  10 #include "base/strings/string_number_conversions.h"
  11 #include "base/thread_task_runner_handle.h"
  12 #include "base/values.h"
  13 #include "components/devtools_http_handler/devtools_http_handler.h"
  14 #include "components/devtools_http_handler/devtools_http_handler_delegate.h"
  15 #include "content/public/test/test_browser_thread_bundle.h"
  16 #include "content/public/test/test_utils.h"
  17 #include "net/base/ip_endpoint.h"
  18 #include "net/base/net_errors.h"
  19 #include "net/socket/server_socket.h"
  20 #include "testing/gtest/include/gtest/gtest.h"
  21
  22 using content::BrowserThread;
  23
  24 namespace devtools_http_handler {
  25 namespace {
  26
  27 const uint16 kDummyPort = 4321;
  28 const base::FilePath::CharType kDevToolsActivePortFileName[] =
  29     FILE_PATH_LITERAL("DevToolsActivePort");
  30
  31 class DummyServerSocket : public net::ServerSocket {
  32  public:
  33   DummyServerSocket() {}
  34
  35   // net::ServerSocket "implementation"
  36   int Listen(const net::IPEndPoint& address, int backlog) override {
  37     return net::OK;
  38   }
  39
  40   int GetLocalAddress(net::IPEndPoint* address) const override {
  41     net::IPAddressNumber number;
  42     EXPECT_TRUE(net::ParseIPLiteralToNumber("127.0.0.1", &number));
  43     *address = net::IPEndPoint(number, kDummyPort);
  44     return net::OK;
  45   }
  46
  47   int Accept(scoped_ptr<net::StreamSocket>* socket,
  48              const net::CompletionCallback& callback) override {
  49     return net::ERR_IO_PENDING;
  50   }
  51 };
  52
  53 void QuitFromHandlerThread(const base::Closure& quit_closure) {
  54   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, quit_closure);
  55 }
  56
  57 class DummyServerSocketFactory
  58     : public DevToolsHttpHandler::ServerSocketFactory {
  59  public:
  60   DummyServerSocketFactory(base::Closure quit_closure_1,
  61                            base::Closure quit_closure_2)
  62       : quit_closure_1_(quit_closure_1),
  63         quit_closure_2_(quit_closure_2) {}
  64
  65   ~DummyServerSocketFactory() override {
  66     BrowserThread::PostTask(
  67         BrowserThread::UI, FROM_HERE, quit_closure_2_);
  68   }
  69
  70  protected:
  71   scoped_ptr<net::ServerSocket> CreateForHttpServer() override {
  72     base::ThreadTaskRunnerHandle::Get()->PostTask(
  73         FROM_HERE, base::Bind(&QuitFromHandlerThread, quit_closure_1_));
  74     return scoped_ptr<net::ServerSocket>(new DummyServerSocket());
  75   }
  76
  77   base::Closure quit_closure_1_;
  78   base::Closure quit_closure_2_;
  79 };
  80
  81 class FailingServerSocketFactory : public DummyServerSocketFactory {
  82  public:
  83   FailingServerSocketFactory(const base::Closure& quit_closure_1,
  84                              const base::Closure& quit_closure_2)
  85       : DummyServerSocketFactory(quit_closure_1, quit_closure_2) {
  86   }
  87
  88  private:
  89   scoped_ptr<net::ServerSocket> CreateForHttpServer() override {
  90     base::ThreadTaskRunnerHandle::Get()->PostTask(
  91         FROM_HERE, base::Bind(&QuitFromHandlerThread, quit_closure_1_));
  92     return scoped_ptr<net::ServerSocket>();
  93   }
  94 };
  95
  96 class DummyDelegate : public DevToolsHttpHandlerDelegate {
  97  public:
  98   std::string GetDiscoveryPageHTML() override { return std::string(); }
  99
 100   std::string GetFrontendResource(const std::string& path) override {
 101     return std::string();
 102   }
 103
 104   std::string GetPageThumbnailData(const GURL& url) override {
 105     return std::string();
 106   }
 107 };
 108
 109 }
 110
 111 class DevToolsHttpHandlerTest : public testing::Test {
 112  public:
 113   DevToolsHttpHandlerTest() : testing::Test() { }
 114
 115  private:
 116   content::TestBrowserThreadBundle thread_bundle_;
 117 };
 118
 119 TEST_F(DevToolsHttpHandlerTest, TestStartStop) {
 120   base::RunLoop run_loop, run_loop_2;
 121   scoped_ptr<DevToolsHttpHandler::ServerSocketFactory> factory(
 122       new DummyServerSocketFactory(run_loop.QuitClosure(),
 123                                    run_loop_2.QuitClosure()));
 124   scoped_ptr<DevToolsHttpHandler> devtools_http_handler(
 125       new DevToolsHttpHandler(factory.Pass(),
 126                               std::string(),
 127                               new DummyDelegate(),
 128                               base::FilePath(),
 129                               base::FilePath(),
 130                               std::string(),
 131                               std::string()));
 132   // Our dummy socket factory will post a quit message once the server will
 133   // become ready.
 134   run_loop.Run();
 135   devtools_http_handler.reset();
 136   // Make sure the handler actually stops.
 137   run_loop_2.Run();
 138 }
 139
 140 TEST_F(DevToolsHttpHandlerTest, TestServerSocketFailed) {
 141   base::RunLoop run_loop, run_loop_2;
 142   scoped_ptr<DevToolsHttpHandler::ServerSocketFactory> factory(
 143       new FailingServerSocketFactory(run_loop.QuitClosure(),
 144                                      run_loop_2.QuitClosure()));
 145   scoped_ptr<DevToolsHttpHandler> devtools_http_handler(
 146       new DevToolsHttpHandler(factory.Pass(),
 147                               std::string(),
 148                               new DummyDelegate(),
 149                               base::FilePath(),
 150                               base::FilePath(),
 151                               std::string(),
 152                               std::string()));
 153   // Our dummy socket factory will post a quit message once the server will
 154   // become ready.
 155   run_loop.Run();
 156   for (int i = 0; i < 5; i++) {
 157     RunAllPendingInMessageLoop(BrowserThread::UI);
 158     RunAllPendingInMessageLoop(BrowserThread::FILE);
 159   }
 160   devtools_http_handler.reset();
 161   // Make sure the handler actually stops.
 162   run_loop_2.Run();
 163 }
 164
 165
 166 TEST_F(DevToolsHttpHandlerTest, TestDevToolsActivePort) {
 167   base::RunLoop run_loop, run_loop_2;
 168   base::ScopedTempDir temp_dir;
 169   EXPECT_TRUE(temp_dir.CreateUniqueTempDir());
 170   scoped_ptr<DevToolsHttpHandler::ServerSocketFactory> factory(
 171       new DummyServerSocketFactory(run_loop.QuitClosure(),
 172                                    run_loop_2.QuitClosure()));
 173   scoped_ptr<DevToolsHttpHandler> devtools_http_handler(
 174       new DevToolsHttpHandler(factory.Pass(),
 175                               std::string(),
 176                               new DummyDelegate(),
 177                               temp_dir.path(),
 178                               base::FilePath(),
 179                               std::string(),
 180                               std::string()));
 181   // Our dummy socket factory will post a quit message once the server will
 182   // become ready.
 183   run_loop.Run();
 184   devtools_http_handler.reset();
 185   // Make sure the handler actually stops.
 186   run_loop_2.Run();
 187
 188   // Now make sure the DevToolsActivePort was written into the
 189   // temporary directory and its contents are as expected.
 190   base::FilePath active_port_file = temp_dir.path().Append(
 191       kDevToolsActivePortFileName);
 192   EXPECT_TRUE(base::PathExists(active_port_file));
 193   std::string file_contents;
 194   EXPECT_TRUE(base::ReadFileToString(active_port_file, &file_contents));
 195   int port = 0;
 196   EXPECT_TRUE(base::StringToInt(file_contents, &port));
 197   EXPECT_EQ(static_cast<int>(kDummyPort), port);
 198 }
 199
 200 }  // namespace devtools_http_handler