Home | History | Annotate | Download | only in tests 
      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 "ppapi/tests/test_websocket.h"
      6 
      7 #include <stdio.h>
      8 #include <string.h>
      9 
     10 #include <algorithm>
     11 #include <memory>
     12 #include <string>
     13 #include <vector>
     14 
     15 #include "ppapi/c/dev/ppb_testing_dev.h"
     16 #include "ppapi/c/pp_bool.h"
     17 #include "ppapi/c/pp_completion_callback.h"
     18 #include "ppapi/c/pp_errors.h"
     19 #include "ppapi/c/pp_instance.h"
     20 #include "ppapi/c/pp_resource.h"
     21 #include "ppapi/c/pp_var.h"
     22 #include "ppapi/c/ppb_core.h"
     23 #include "ppapi/c/ppb_var.h"
     24 #include "ppapi/c/ppb_var_array_buffer.h"
     25 #include "ppapi/c/ppb_websocket.h"
     26 #include "ppapi/cpp/instance.h"
     27 #include "ppapi/cpp/module.h"
     28 #include "ppapi/cpp/var_array_buffer.h"
     29 #include "ppapi/cpp/websocket.h"
     30 #include "ppapi/tests/test_utils.h"
     31 #include "ppapi/tests/testing_instance.h"
     32 #include "ppapi/utility/websocket/websocket_api.h"
     33 
     34 // net::SpawnedTestServer serves WebSocket service for testing.
     35 // Following URLs are handled by pywebsocket handlers in
     36 // net/data/websocket/*_wsh.py.
     37 const char kEchoServerURL[] = "echo-with-no-extension";
     38 const char kCloseServerURL[] = "close";
     39 const char kCloseWithCodeAndReasonServerURL[] = "close-code-and-reason";
     40 const char kProtocolTestServerURL[] = "protocol-test?protocol=";
     41 
     42 const char* const kInvalidURLs[] = {
     43   "http://www.google.com/invalid_scheme",
     44   "ws://www.google.com/invalid#fragment",
     45   "ws://www.google.com:65535/invalid_port",
     46   NULL
     47 };
     48 
     49 // Internal packet sizes.
     50 const uint64_t kCloseFrameSize = 6;
     51 const uint64_t kMessageFrameOverhead = 6;
     52 
     53 namespace {
     54 
     55 struct WebSocketEvent {
     56   enum EventType {
     57     EVENT_OPEN,
     58     EVENT_MESSAGE,
     59     EVENT_ERROR,
     60     EVENT_CLOSE
     61   };
     62 
     63   WebSocketEvent(EventType type,
     64                  bool was_clean,
     65                  uint16_t close_code,
     66                  const pp::Var& var)
     67       : event_type(type),
     68         was_clean(was_clean),
     69         close_code(close_code),
     70         var(var) {
     71   }
     72   EventType event_type;
     73   bool was_clean;
     74   uint16_t close_code;
     75   pp::Var var;
     76 };
     77 
     78 class ReleaseResourceDelegate : public TestCompletionCallback::Delegate {
     79  public:
     80   explicit ReleaseResourceDelegate(const PPB_Core* core_interface,
     81                                    PP_Resource resource)
     82       : core_interface_(core_interface),
     83         resource_(resource) {
     84   }
     85 
     86   // TestCompletionCallback::Delegate implementation.
     87   virtual void OnCallback(void* user_data, int32_t result) {
     88     if (resource_)
     89       core_interface_->ReleaseResource(resource_);
     90   }
     91 
     92  private:
     93   const PPB_Core* core_interface_;
     94   PP_Resource resource_;
     95 };
     96 
     97 class TestWebSocketAPI : public pp::WebSocketAPI {
     98  public:
     99   explicit TestWebSocketAPI(pp::Instance* instance)
    100       : pp::WebSocketAPI(instance),
    101         connected_(false),
    102         received_(false),
    103         closed_(false),
    104         wait_for_connected_(false),
    105         wait_for_received_(false),
    106         wait_for_closed_(false),
    107         instance_(instance->pp_instance()) {
    108   }
    109 
    110   virtual void WebSocketDidOpen() {
    111     events_.push_back(
    112         WebSocketEvent(WebSocketEvent::EVENT_OPEN, true, 0U, pp::Var()));
    113     connected_ = true;
    114     if (wait_for_connected_) {
    115       GetTestingInterface()->QuitMessageLoop(instance_);
    116       wait_for_connected_ = false;
    117     }
    118   }
    119 
    120   virtual void WebSocketDidClose(
    121       bool was_clean, uint16_t code, const pp::Var& reason) {
    122     events_.push_back(
    123         WebSocketEvent(WebSocketEvent::EVENT_CLOSE, was_clean, code, reason));
    124     connected_ = true;
    125     closed_ = true;
    126     if (wait_for_connected_ || wait_for_closed_) {
    127       GetTestingInterface()->QuitMessageLoop(instance_);
    128       wait_for_connected_ = false;
    129       wait_for_closed_ = false;
    130     }
    131   }
    132 
    133   virtual void HandleWebSocketMessage(const pp::Var &message) {
    134     events_.push_back(
    135         WebSocketEvent(WebSocketEvent::EVENT_MESSAGE, true, 0U, message));
    136     received_ = true;
    137     if (wait_for_received_) {
    138       GetTestingInterface()->QuitMessageLoop(instance_);
    139       wait_for_received_ = false;
    140       received_ = false;
    141     }
    142   }
    143 
    144   virtual void HandleWebSocketError() {
    145     events_.push_back(
    146         WebSocketEvent(WebSocketEvent::EVENT_ERROR, true, 0U, pp::Var()));
    147   }
    148 
    149   void WaitForConnected() {
    150     if (!connected_) {
    151       wait_for_connected_ = true;
    152       GetTestingInterface()->RunMessageLoop(instance_);
    153     }
    154   }
    155 
    156   void WaitForReceived() {
    157     if (!received_) {
    158       wait_for_received_ = true;
    159       GetTestingInterface()->RunMessageLoop(instance_);
    160     }
    161   }
    162 
    163   void WaitForClosed() {
    164     if (!closed_) {
    165       wait_for_closed_ = true;
    166       GetTestingInterface()->RunMessageLoop(instance_);
    167     }
    168   }
    169 
    170   const std::vector<WebSocketEvent>& GetSeenEvents() const {
    171     return events_;
    172   }
    173 
    174  private:
    175   std::vector<WebSocketEvent> events_;
    176   bool connected_;
    177   bool received_;
    178   bool closed_;
    179   bool wait_for_connected_;
    180   bool wait_for_received_;
    181   bool wait_for_closed_;
    182   PP_Instance instance_;
    183 };
    184 
    185 }  // namespace
    186 
    187 REGISTER_TEST_CASE(WebSocket);
    188 
    189 bool TestWebSocket::Init() {
    190   websocket_interface_ = static_cast<const PPB_WebSocket*>(
    191       pp::Module::Get()->GetBrowserInterface(PPB_WEBSOCKET_INTERFACE));
    192   var_interface_ = static_cast<const PPB_Var*>(
    193       pp::Module::Get()->GetBrowserInterface(PPB_VAR_INTERFACE));
    194   arraybuffer_interface_ = static_cast<const PPB_VarArrayBuffer*>(
    195       pp::Module::Get()->GetBrowserInterface(
    196           PPB_VAR_ARRAY_BUFFER_INTERFACE));
    197   core_interface_ = static_cast<const PPB_Core*>(
    198       pp::Module::Get()->GetBrowserInterface(PPB_CORE_INTERFACE));
    199   if (!websocket_interface_ || !var_interface_ || !arraybuffer_interface_ ||
    200       !core_interface_)
    201     return false;
    202 
    203   return CheckTestingInterface();
    204 }
    205 
    206 void TestWebSocket::RunTests(const std::string& filter) {
    207   RUN_TEST_WITH_REFERENCE_CHECK(IsWebSocket, filter);
    208   RUN_TEST_WITH_REFERENCE_CHECK(UninitializedPropertiesAccess, filter);
    209   RUN_TEST_WITH_REFERENCE_CHECK(InvalidConnect, filter);
    210   RUN_TEST_WITH_REFERENCE_CHECK(Protocols, filter);
    211   RUN_TEST_WITH_REFERENCE_CHECK(GetURL, filter);
    212   RUN_TEST_WITH_REFERENCE_CHECK(ValidConnect, filter);
    213   RUN_TEST_WITH_REFERENCE_CHECK(InvalidClose, filter);
    214   RUN_TEST_WITH_REFERENCE_CHECK(ValidClose, filter);
    215   RUN_TEST_WITH_REFERENCE_CHECK(GetProtocol, filter);
    216   RUN_TEST_WITH_REFERENCE_CHECK(TextSendReceive, filter);
    217   RUN_TEST_BACKGROUND(TestWebSocket, TextSendReceiveTwice, filter);
    218   RUN_TEST_WITH_REFERENCE_CHECK(BinarySendReceive, filter);
    219   RUN_TEST_WITH_REFERENCE_CHECK(StressedSendReceive, filter);
    220   RUN_TEST_WITH_REFERENCE_CHECK(BufferedAmount, filter);
    221   // PP_Resource for WebSocket may be released later because of an internal
    222   // reference for asynchronous IPC handling. So, suppress reference check on
    223   // the following AbortCallsWithCallback test.
    224   RUN_TEST(AbortCallsWithCallback, filter);
    225   RUN_TEST_WITH_REFERENCE_CHECK(AbortSendMessageCall, filter);
    226   RUN_TEST_WITH_REFERENCE_CHECK(AbortCloseCall, filter);
    227   RUN_TEST_WITH_REFERENCE_CHECK(AbortReceiveMessageCall, filter);
    228 
    229   RUN_TEST_WITH_REFERENCE_CHECK(CcInterfaces, filter);
    230 
    231   RUN_TEST_WITH_REFERENCE_CHECK(UtilityInvalidConnect, filter);
    232   RUN_TEST_WITH_REFERENCE_CHECK(UtilityProtocols, filter);
    233   RUN_TEST_WITH_REFERENCE_CHECK(UtilityGetURL, filter);
    234   RUN_TEST_WITH_REFERENCE_CHECK(UtilityValidConnect, filter);
    235   RUN_TEST_WITH_REFERENCE_CHECK(UtilityInvalidClose, filter);
    236   RUN_TEST_WITH_REFERENCE_CHECK(UtilityValidClose, filter);
    237   RUN_TEST_WITH_REFERENCE_CHECK(UtilityGetProtocol, filter);
    238   RUN_TEST_WITH_REFERENCE_CHECK(UtilityTextSendReceive, filter);
    239   RUN_TEST_WITH_REFERENCE_CHECK(UtilityBinarySendReceive, filter);
    240   RUN_TEST_WITH_REFERENCE_CHECK(UtilityBufferedAmount, filter);
    241 }
    242 
    243 std::string TestWebSocket::GetFullURL(const char* url) {
    244   std::string rv = "ws://";
    245   // Some WebSocket tests don't start the server so there'll be no host and
    246   // port.
    247   if (instance_->websocket_host().empty())
    248     rv += "127.0.0.1";
    249   else
    250     rv += instance_->websocket_host();
    251   if (instance_->websocket_port() != -1) {
    252     char buffer[10];
    253     sprintf(buffer, ":%d", instance_->websocket_port());
    254     rv += std::string(buffer);
    255   }
    256   rv += "/";
    257   rv += url;
    258   return rv;
    259 }
    260 
    261 PP_Var TestWebSocket::CreateVarString(const std::string& string) {
    262   return var_interface_->VarFromUtf8(string.c_str(), string.size());
    263 }
    264 
    265 PP_Var TestWebSocket::CreateVarBinary(const std::vector<uint8_t>& binary) {
    266   PP_Var var = arraybuffer_interface_->Create(binary.size());
    267   uint8_t* var_data = static_cast<uint8_t*>(arraybuffer_interface_->Map(var));
    268   std::copy(binary.begin(), binary.end(), var_data);
    269   return var;
    270 }
    271 
    272 void TestWebSocket::ReleaseVar(const PP_Var& var) {
    273   var_interface_->Release(var);
    274 }
    275 
    276 bool TestWebSocket::AreEqualWithString(const PP_Var& var,
    277                                        const std::string& string) {
    278   if (var.type != PP_VARTYPE_STRING)
    279     return false;
    280   uint32_t utf8_length;
    281   const char* utf8 = var_interface_->VarToUtf8(var, &utf8_length);
    282   if (utf8_length != string.size())
    283     return false;
    284   if (string.compare(utf8))
    285     return false;
    286   return true;
    287 }
    288 
    289 bool TestWebSocket::AreEqualWithBinary(const PP_Var& var,
    290                                        const std::vector<uint8_t>& binary) {
    291   uint32_t buffer_size = 0;
    292   PP_Bool success = arraybuffer_interface_->ByteLength(var, &buffer_size);
    293   if (!success || buffer_size != binary.size())
    294     return false;
    295   if (!std::equal(binary.begin(), binary.end(),
    296       static_cast<uint8_t*>(arraybuffer_interface_->Map(var))))
    297     return false;
    298   return true;
    299 }
    300 
    301 PP_Resource TestWebSocket::Connect(const std::string& url,
    302                                    int32_t* result,
    303                                    const std::string& protocol) {
    304   PP_Var protocols[] = { PP_MakeUndefined() };
    305   PP_Resource ws = websocket_interface_->Create(instance_->pp_instance());
    306   if (!ws)
    307     return 0;
    308   PP_Var url_var = CreateVarString(url);
    309   TestCompletionCallback callback(instance_->pp_instance(), callback_type());
    310   uint32_t protocol_count = 0U;
    311   if (protocol.size()) {
    312     protocols[0] = CreateVarString(protocol);
    313     protocol_count = 1U;
    314   }
    315   callback.WaitForResult(websocket_interface_->Connect(
    316       ws, url_var, protocols, protocol_count,
    317       callback.GetCallback().pp_completion_callback()));
    318   ReleaseVar(url_var);
    319   if (protocol.size())
    320     ReleaseVar(protocols[0]);
    321   *result = callback.result();
    322   return ws;
    323 }
    324 
    325 void TestWebSocket::Send(int32_t /* result */, PP_Resource ws,
    326                          const std::string& message) {
    327   PP_Var message_var = CreateVarString(message);
    328   websocket_interface_->SendMessage(ws, message_var);
    329   ReleaseVar(message_var);
    330 }
    331 
    332 std::string TestWebSocket::TestIsWebSocket() {
    333   // Test that a NULL resource isn't a websocket.
    334   pp::Resource null_resource;
    335   PP_Bool result =
    336       websocket_interface_->IsWebSocket(null_resource.pp_resource());
    337   ASSERT_FALSE(result);
    338 
    339   PP_Resource ws = websocket_interface_->Create(instance_->pp_instance());
    340   ASSERT_TRUE(ws);
    341 
    342   result = websocket_interface_->IsWebSocket(ws);
    343   ASSERT_TRUE(result);
    344 
    345   core_interface_->ReleaseResource(ws);
    346 
    347   PASS();
    348 }
    349 
    350 std::string TestWebSocket::TestUninitializedPropertiesAccess() {
    351   PP_Resource ws = websocket_interface_->Create(instance_->pp_instance());
    352   ASSERT_TRUE(ws);
    353 
    354   uint64_t bufferedAmount = websocket_interface_->GetBufferedAmount(ws);
    355   ASSERT_EQ(0U, bufferedAmount);
    356 
    357   uint16_t close_code = websocket_interface_->GetCloseCode(ws);
    358   ASSERT_EQ(0U, close_code);
    359 
    360   PP_Var close_reason = websocket_interface_->GetCloseReason(ws);
    361   ASSERT_TRUE(AreEqualWithString(close_reason, std::string()));
    362   ReleaseVar(close_reason);
    363 
    364   PP_Bool close_was_clean = websocket_interface_->GetCloseWasClean(ws);
    365   ASSERT_EQ(PP_FALSE, close_was_clean);
    366 
    367   PP_Var extensions = websocket_interface_->GetExtensions(ws);
    368   ASSERT_TRUE(AreEqualWithString(extensions, std::string()));
    369   ReleaseVar(extensions);
    370 
    371   PP_Var protocol = websocket_interface_->GetProtocol(ws);
    372   ASSERT_TRUE(AreEqualWithString(protocol, std::string()));
    373   ReleaseVar(protocol);
    374 
    375   PP_WebSocketReadyState ready_state =
    376       websocket_interface_->GetReadyState(ws);
    377   ASSERT_EQ(PP_WEBSOCKETREADYSTATE_INVALID, ready_state);
    378 
    379   PP_Var url = websocket_interface_->GetURL(ws);
    380   ASSERT_TRUE(AreEqualWithString(url, std::string()));
    381   ReleaseVar(url);
    382 
    383   core_interface_->ReleaseResource(ws);
    384 
    385   PASS();
    386 }
    387 
    388 std::string TestWebSocket::TestInvalidConnect() {
    389   PP_Var protocols[] = { PP_MakeUndefined() };
    390 
    391   PP_Resource ws = websocket_interface_->Create(instance_->pp_instance());
    392   ASSERT_TRUE(ws);
    393 
    394   TestCompletionCallback callback(instance_->pp_instance(), callback_type());
    395   callback.WaitForResult(websocket_interface_->Connect(
    396       ws, PP_MakeUndefined(), protocols, 1U,
    397       callback.GetCallback().pp_completion_callback()));
    398   ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result());
    399 
    400   callback.WaitForResult(websocket_interface_->Connect(
    401       ws, PP_MakeUndefined(), protocols, 1U,
    402       callback.GetCallback().pp_completion_callback()));
    403   ASSERT_EQ(PP_ERROR_INPROGRESS, callback.result());
    404 
    405   core_interface_->ReleaseResource(ws);
    406 
    407   for (int i = 0; kInvalidURLs[i]; ++i) {
    408     int32_t result;
    409     ws = Connect(kInvalidURLs[i], &result, std::string());
    410     ASSERT_TRUE(ws);
    411     ASSERT_EQ(PP_ERROR_BADARGUMENT, result);
    412 
    413     core_interface_->ReleaseResource(ws);
    414   }
    415 
    416   PASS();
    417 }
    418 
    419 std::string TestWebSocket::TestProtocols() {
    420   PP_Var url = CreateVarString(GetFullURL(kEchoServerURL).c_str());
    421   PP_Var bad_protocols[] = {
    422     CreateVarString("x-test"),
    423     CreateVarString("x-test")
    424   };
    425   PP_Var good_protocols[] = {
    426     CreateVarString("x-test"),
    427     CreateVarString("x-yatest")
    428   };
    429 
    430   PP_Resource ws = websocket_interface_->Create(instance_->pp_instance());
    431   ASSERT_TRUE(ws);
    432   TestCompletionCallback callback(instance_->pp_instance(), callback_type());
    433   callback.WaitForResult(websocket_interface_->Connect(
    434       ws, url, bad_protocols, 2U,
    435       callback.GetCallback().pp_completion_callback()));
    436   ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result());
    437   core_interface_->ReleaseResource(ws);
    438 
    439   ws = websocket_interface_->Create(instance_->pp_instance());
    440   ASSERT_TRUE(ws);
    441   int32_t result = websocket_interface_->Connect(
    442       ws, url, good_protocols, 2U, PP_BlockUntilComplete());
    443   ASSERT_EQ(PP_ERROR_BLOCKS_MAIN_THREAD, result);
    444   core_interface_->ReleaseResource(ws);
    445 
    446   ReleaseVar(url);
    447   for (int i = 0; i < 2; ++i) {
    448     ReleaseVar(bad_protocols[i]);
    449     ReleaseVar(good_protocols[i]);
    450   }
    451   core_interface_->ReleaseResource(ws);
    452 
    453   PASS();
    454 }
    455 
    456 std::string TestWebSocket::TestGetURL() {
    457   for (int i = 0; kInvalidURLs[i]; ++i) {
    458     int32_t result;
    459     PP_Resource ws = Connect(kInvalidURLs[i], &result, std::string());
    460     ASSERT_TRUE(ws);
    461     PP_Var url = websocket_interface_->GetURL(ws);
    462     ASSERT_TRUE(AreEqualWithString(url, kInvalidURLs[i]));
    463     ASSERT_EQ(PP_ERROR_BADARGUMENT, result);
    464 
    465     ReleaseVar(url);
    466     core_interface_->ReleaseResource(ws);
    467   }
    468 
    469   PASS();
    470 }
    471 
    472 std::string TestWebSocket::TestValidConnect() {
    473   int32_t result;
    474   PP_Resource ws = Connect(GetFullURL(kEchoServerURL), &result, std::string());
    475   ASSERT_TRUE(ws);
    476   ASSERT_EQ(PP_OK, result);
    477   PP_Var extensions = websocket_interface_->GetExtensions(ws);
    478   ASSERT_TRUE(AreEqualWithString(extensions, std::string()));
    479   core_interface_->ReleaseResource(ws);
    480   ReleaseVar(extensions);
    481 
    482   PASS();
    483 }
    484 
    485 std::string TestWebSocket::TestInvalidClose() {
    486   PP_Var reason = CreateVarString("close for test");
    487   TestCompletionCallback callback(instance_->pp_instance(), callback_type());
    488   TestCompletionCallback async_callback(instance_->pp_instance(), PP_REQUIRED);
    489 
    490   // Close before connect.
    491   PP_Resource ws = websocket_interface_->Create(instance_->pp_instance());
    492   callback.WaitForResult(websocket_interface_->Close(
    493       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, reason,
    494       callback.GetCallback().pp_completion_callback()));
    495   ASSERT_EQ(PP_ERROR_FAILED, callback.result());
    496   core_interface_->ReleaseResource(ws);
    497 
    498   // Close with bad arguments.
    499   int32_t result;
    500   ws = Connect(GetFullURL(kEchoServerURL), &result, std::string());
    501   ASSERT_TRUE(ws);
    502   ASSERT_EQ(PP_OK, result);
    503   callback.WaitForResult(websocket_interface_->Close(
    504       ws, 1U, reason, callback.GetCallback().pp_completion_callback()));
    505   ASSERT_EQ(PP_ERROR_NOACCESS, callback.result());
    506   core_interface_->ReleaseResource(ws);
    507 
    508   // Close with PP_VARTYPE_NULL.
    509   ws = Connect(GetFullURL(kEchoServerURL), &result, std::string());
    510   ASSERT_TRUE(ws);
    511   ASSERT_EQ(PP_OK, result);
    512   callback.WaitForResult(websocket_interface_->Close(
    513       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, PP_MakeNull(),
    514       callback.GetCallback().pp_completion_callback()));
    515   ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result());
    516   core_interface_->ReleaseResource(ws);
    517 
    518   // Close with PP_VARTYPE_NULL and ongoing receive message.
    519   ws = Connect(GetFullURL(kEchoServerURL), &result, std::string());
    520   ASSERT_TRUE(ws);
    521   ASSERT_EQ(PP_OK, result);
    522   PP_Var receive_message_var;
    523   result = websocket_interface_->ReceiveMessage(
    524       ws, &receive_message_var,
    525       async_callback.GetCallback().pp_completion_callback());
    526   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
    527   callback.WaitForResult(websocket_interface_->Close(
    528       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, PP_MakeNull(),
    529       callback.GetCallback().pp_completion_callback()));
    530   ASSERT_EQ(PP_ERROR_BADARGUMENT, callback.result());
    531   const char* send_message = "hi";
    532   PP_Var send_message_var = CreateVarString(send_message);
    533   result = websocket_interface_->SendMessage(ws, send_message_var);
    534   ReleaseVar(send_message_var);
    535   ASSERT_EQ(PP_OK, result);
    536   async_callback.WaitForResult(PP_OK_COMPLETIONPENDING);
    537   ASSERT_EQ(PP_OK, async_callback.result());
    538   ASSERT_TRUE(AreEqualWithString(receive_message_var, send_message));
    539   ReleaseVar(receive_message_var);
    540   core_interface_->ReleaseResource(ws);
    541 
    542   // Close twice.
    543   ws = Connect(GetFullURL(kEchoServerURL), &result, std::string());
    544   ASSERT_TRUE(ws);
    545   ASSERT_EQ(PP_OK, result);
    546   result = websocket_interface_->Close(
    547       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, reason,
    548       async_callback.GetCallback().pp_completion_callback());
    549   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
    550   // Call another Close() before previous one is in progress.
    551   result = websocket_interface_->Close(
    552       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, reason,
    553       callback.GetCallback().pp_completion_callback());
    554   ASSERT_EQ(PP_ERROR_INPROGRESS, result);
    555   async_callback.WaitForResult(PP_OK_COMPLETIONPENDING);
    556   ASSERT_EQ(PP_OK, async_callback.result());
    557   // Call another Close() after previous one is completed.
    558   // This Close() must do nothing and reports no error.
    559   callback.WaitForResult(websocket_interface_->Close(
    560       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, reason,
    561       callback.GetCallback().pp_completion_callback()));
    562   ASSERT_EQ(PP_OK, callback.result());
    563   core_interface_->ReleaseResource(ws);
    564 
    565   ReleaseVar(reason);
    566 
    567   PASS();
    568 }
    569 
    570 std::string TestWebSocket::TestValidClose() {
    571   PP_Var reason = CreateVarString("close for test");
    572   PP_Var url = CreateVarString(GetFullURL(kEchoServerURL).c_str());
    573   PP_Var protocols[] = { PP_MakeUndefined() };
    574   TestCompletionCallback callback(instance_->pp_instance(), callback_type());
    575   TestCompletionCallback another_callback(
    576       instance_->pp_instance(), callback_type());
    577 
    578   // Close.
    579   int32_t result;
    580   PP_Resource ws = Connect(GetFullURL(kEchoServerURL), &result, std::string());
    581   ASSERT_TRUE(ws);
    582   ASSERT_EQ(PP_OK, result);
    583   callback.WaitForResult(websocket_interface_->Close(
    584       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, reason,
    585       callback.GetCallback().pp_completion_callback()));
    586   CHECK_CALLBACK_BEHAVIOR(callback);
    587   ASSERT_EQ(PP_OK, callback.result());
    588   core_interface_->ReleaseResource(ws);
    589 
    590   // Close without code and reason.
    591   ws = Connect(GetFullURL(kEchoServerURL), &result, std::string());
    592   ASSERT_TRUE(ws);
    593   ASSERT_EQ(PP_OK, result);
    594   callback.WaitForResult(websocket_interface_->Close(
    595       ws, PP_WEBSOCKETSTATUSCODE_NOT_SPECIFIED, reason,
    596       callback.GetCallback().pp_completion_callback()));
    597   ASSERT_EQ(PP_OK, callback.result());
    598   core_interface_->ReleaseResource(ws);
    599 
    600   // Close with PP_VARTYPE_UNDEFINED.
    601   ws = Connect(GetFullURL(kEchoServerURL), &result, std::string());
    602   ASSERT_TRUE(ws);
    603   ASSERT_EQ(PP_OK, result);
    604   callback.WaitForResult(websocket_interface_->Close(
    605       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, PP_MakeUndefined(),
    606       callback.GetCallback().pp_completion_callback()));
    607   CHECK_CALLBACK_BEHAVIOR(callback);
    608   ASSERT_EQ(PP_OK, callback.result());
    609   core_interface_->ReleaseResource(ws);
    610 
    611   // Close in connecting.
    612   // The ongoing connect failed with PP_ERROR_ABORTED, then the close is done
    613   // successfully.
    614   ws = websocket_interface_->Create(instance_->pp_instance());
    615   result = websocket_interface_->Connect(
    616       ws, url, protocols, 0U, callback.GetCallback().pp_completion_callback());
    617   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
    618   result = websocket_interface_->Close(
    619       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, reason,
    620       another_callback.GetCallback().pp_completion_callback());
    621   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
    622   callback.WaitForResult(PP_OK_COMPLETIONPENDING);
    623   ASSERT_EQ(PP_ERROR_ABORTED, callback.result());
    624   another_callback.WaitForResult(PP_OK_COMPLETIONPENDING);
    625   ASSERT_EQ(PP_OK, another_callback.result());
    626   core_interface_->ReleaseResource(ws);
    627 
    628   // Close in closing.
    629   // The first close will be done successfully, then the second one failed with
    630   // with PP_ERROR_INPROGRESS immediately.
    631   ws = Connect(GetFullURL(kEchoServerURL), &result, std::string());
    632   ASSERT_TRUE(ws);
    633   ASSERT_EQ(PP_OK, result);
    634   result = websocket_interface_->Close(
    635       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, reason,
    636       callback.GetCallback().pp_completion_callback());
    637   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
    638   result = websocket_interface_->Close(
    639       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, reason,
    640       another_callback.GetCallback().pp_completion_callback());
    641   ASSERT_EQ(PP_ERROR_INPROGRESS, result);
    642   callback.WaitForResult(PP_OK_COMPLETIONPENDING);
    643   ASSERT_EQ(PP_OK, callback.result());
    644   core_interface_->ReleaseResource(ws);
    645 
    646   // Close with ongoing receive message.
    647   ws = Connect(GetFullURL(kEchoServerURL), &result, std::string());
    648   ASSERT_TRUE(ws);
    649   ASSERT_EQ(PP_OK, result);
    650   PP_Var receive_message_var;
    651   result = websocket_interface_->ReceiveMessage(
    652       ws, &receive_message_var,
    653       callback.GetCallback().pp_completion_callback());
    654   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
    655   result = websocket_interface_->Close(
    656       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, reason,
    657       another_callback.GetCallback().pp_completion_callback());
    658   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
    659   callback.WaitForResult(PP_OK_COMPLETIONPENDING);
    660   ASSERT_EQ(PP_ERROR_ABORTED, callback.result());
    661   another_callback.WaitForResult(PP_OK_COMPLETIONPENDING);
    662   ASSERT_EQ(PP_OK, another_callback.result());
    663   core_interface_->ReleaseResource(ws);
    664 
    665   // Close with PP_VARTYPE_UNDEFINED and ongoing receive message.
    666   ws = Connect(GetFullURL(kEchoServerURL), &result, std::string());
    667   ASSERT_TRUE(ws);
    668   ASSERT_EQ(PP_OK, result);
    669   result = websocket_interface_->ReceiveMessage(
    670       ws, &receive_message_var,
    671       callback.GetCallback().pp_completion_callback());
    672   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
    673   result = websocket_interface_->Close(
    674       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, PP_MakeUndefined(),
    675       another_callback.GetCallback().pp_completion_callback());
    676   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
    677   callback.WaitForResult(PP_OK_COMPLETIONPENDING);
    678   ASSERT_EQ(PP_ERROR_ABORTED, callback.result());
    679   another_callback.WaitForResult(PP_OK_COMPLETIONPENDING);
    680   ASSERT_EQ(PP_OK, another_callback.result());
    681   core_interface_->ReleaseResource(ws);
    682 
    683   // Server initiated closing handshake.
    684   ws = Connect(
    685       GetFullURL(kCloseWithCodeAndReasonServerURL), &result, std::string());
    686   ASSERT_TRUE(ws);
    687   ASSERT_EQ(PP_OK, result);
    688   // Text messsage "1000 bye" requests the server to initiate closing handshake
    689   // with code being 1000 and reason being "bye".
    690   PP_Var close_request_var = CreateVarString("1000 bye");
    691   result = websocket_interface_->SendMessage(ws, close_request_var);
    692   ReleaseVar(close_request_var);
    693   callback.WaitForResult(websocket_interface_->ReceiveMessage(
    694       ws, &receive_message_var,
    695       callback.GetCallback().pp_completion_callback()));
    696   ASSERT_EQ(PP_ERROR_FAILED, callback.result());
    697   core_interface_->ReleaseResource(ws);
    698 
    699   ReleaseVar(reason);
    700   ReleaseVar(url);
    701 
    702   PASS();
    703 }
    704 
    705 std::string TestWebSocket::TestGetProtocol() {
    706   const char* expected_protocols[] = {
    707     "x-chat",
    708     "hoehoe",
    709     NULL
    710   };
    711   for (int i = 0; expected_protocols[i]; ++i) {
    712     std::string url(GetFullURL(kProtocolTestServerURL));
    713     url += expected_protocols[i];
    714     int32_t result;
    715     PP_Resource ws = Connect(url.c_str(), &result, expected_protocols[i]);
    716     ASSERT_TRUE(ws);
    717     ASSERT_EQ(PP_OK, result);
    718 
    719     PP_Var protocol = websocket_interface_->GetProtocol(ws);
    720     ASSERT_TRUE(AreEqualWithString(protocol, expected_protocols[i]));
    721 
    722     ReleaseVar(protocol);
    723     core_interface_->ReleaseResource(ws);
    724   }
    725 
    726   PASS();
    727 }
    728 
    729 std::string TestWebSocket::TestTextSendReceive() {
    730   // Connect to test echo server.
    731   int32_t connect_result;
    732   PP_Resource ws =
    733       Connect(GetFullURL(kEchoServerURL), &connect_result, std::string());
    734   ASSERT_TRUE(ws);
    735   ASSERT_EQ(PP_OK, connect_result);
    736 
    737   // Send 'hello pepper' text message.
    738   const char* message = "hello pepper";
    739   PP_Var message_var = CreateVarString(message);
    740   int32_t result = websocket_interface_->SendMessage(ws, message_var);
    741   ReleaseVar(message_var);
    742   ASSERT_EQ(PP_OK, result);
    743 
    744   // Receive echoed 'hello pepper'.
    745   TestCompletionCallback callback(instance_->pp_instance(), callback_type());
    746   PP_Var received_message;
    747   callback.WaitForResult(websocket_interface_->ReceiveMessage(
    748       ws, &received_message, callback.GetCallback().pp_completion_callback()));
    749   ASSERT_EQ(PP_OK, callback.result());
    750   ASSERT_TRUE(AreEqualWithString(received_message, message));
    751   ReleaseVar(received_message);
    752   core_interface_->ReleaseResource(ws);
    753 
    754   PASS();
    755 }
    756 
    757 // Run as a BACKGROUND test.
    758 std::string TestWebSocket::TestTextSendReceiveTwice() {
    759   // Connect to test echo server.
    760   int32_t connect_result;
    761   PP_Resource ws =
    762       Connect(GetFullURL(kEchoServerURL), &connect_result, std::string());
    763   ASSERT_TRUE(ws);
    764   ASSERT_EQ(PP_OK, connect_result);
    765   pp::MessageLoop message_loop = pp::MessageLoop::GetCurrent();
    766   pp::CompletionCallbackFactory<TestWebSocket> factory(this);
    767 
    768   message_loop.PostWork(factory.NewCallback(&TestWebSocket::Send,
    769                                             ws, std::string("hello")));
    770   // When the server receives 'Goodbye', it closes the session.
    771   message_loop.PostWork(factory.NewCallback(&TestWebSocket::Send,
    772                                             ws, std::string("Goodbye")));
    773   message_loop.PostQuit(false);
    774   message_loop.Run();
    775 
    776   TestCompletionCallback callback(instance_->pp_instance(), callback_type());
    777   PP_Var received_message;
    778   int32_t result = websocket_interface_->ReceiveMessage(
    779       ws, &received_message, callback.GetCallback().pp_completion_callback());
    780   ASSERT_EQ(PP_OK, result);
    781   // Since we don't run the message loop, the callback will stay
    782   // "pending and scheduled to run" state.
    783 
    784   // Waiting for the connection close which will be done by the server.
    785   while (true) {
    786     PP_WebSocketReadyState ready_state =
    787         websocket_interface_->GetReadyState(ws);
    788     if (ready_state != PP_WEBSOCKETREADYSTATE_CONNECTING &&
    789         ready_state != PP_WEBSOCKETREADYSTATE_OPEN) {
    790       break;
    791     }
    792     PlatformSleep(100);  // 100ms
    793   }
    794 
    795   // Cleanup the message loop
    796   message_loop.PostQuit(false);
    797   message_loop.Run();
    798 
    799   ASSERT_EQ(PP_OK, callback.result());
    800   ASSERT_TRUE(AreEqualWithString(received_message, "hello"));
    801   ReleaseVar(received_message);
    802   core_interface_->ReleaseResource(ws);
    803   PASS();
    804 }
    805 
    806 std::string TestWebSocket::TestBinarySendReceive() {
    807   // Connect to test echo server.
    808   int32_t connect_result;
    809   PP_Resource ws =
    810       Connect(GetFullURL(kEchoServerURL), &connect_result, std::string());
    811   ASSERT_TRUE(ws);
    812   ASSERT_EQ(PP_OK, connect_result);
    813 
    814   // Send binary message.
    815   std::vector<uint8_t> binary(256);
    816   for (uint32_t i = 0; i < binary.size(); ++i)
    817     binary[i] = i;
    818   PP_Var message_var = CreateVarBinary(binary);
    819   int32_t result = websocket_interface_->SendMessage(ws, message_var);
    820   ReleaseVar(message_var);
    821   ASSERT_EQ(PP_OK, result);
    822 
    823   // Receive echoed binary.
    824   TestCompletionCallback callback(instance_->pp_instance(), callback_type());
    825   PP_Var received_message;
    826   callback.WaitForResult(websocket_interface_->ReceiveMessage(
    827       ws, &received_message, callback.GetCallback().pp_completion_callback()));
    828   ASSERT_EQ(PP_OK, callback.result());
    829   ASSERT_TRUE(AreEqualWithBinary(received_message, binary));
    830   ReleaseVar(received_message);
    831   core_interface_->ReleaseResource(ws);
    832 
    833   PASS();
    834 }
    835 
    836 std::string TestWebSocket::TestStressedSendReceive() {
    837   // Connect to test echo server.
    838   int32_t connect_result;
    839   PP_Resource ws =
    840       Connect(GetFullURL(kEchoServerURL), &connect_result, std::string());
    841   ASSERT_TRUE(ws);
    842   ASSERT_EQ(PP_OK, connect_result);
    843 
    844   // Prepare PP_Var objects to send.
    845   const char* text = "hello pepper";
    846   PP_Var text_var = CreateVarString(text);
    847   std::vector<uint8_t> binary(256);
    848   for (uint32_t i = 0; i < binary.size(); ++i)
    849     binary[i] = i;
    850   PP_Var binary_var = CreateVarBinary(binary);
    851   // Prepare very large binary data over 64KiB. Object serializer in
    852   // ppapi_proxy has a limitation of 64KiB as maximum return PP_Var data size
    853   // to SRPC. In case received data over 64KiB exists, a specific code handles
    854   // this large data via asynchronous callback from main thread. This data
    855   // intends to test the code.
    856   std::vector<uint8_t> large_binary(65 * 1024);
    857   for (uint32_t i = 0; i < large_binary.size(); ++i)
    858     large_binary[i] = i & 0xff;
    859   PP_Var large_binary_var = CreateVarBinary(large_binary);
    860 
    861   // Send many messages.
    862   int32_t result;
    863   for (int i = 0; i < 256; ++i) {
    864     result = websocket_interface_->SendMessage(ws, text_var);
    865     ASSERT_EQ(PP_OK, result);
    866     result = websocket_interface_->SendMessage(ws, binary_var);
    867     ASSERT_EQ(PP_OK, result);
    868   }
    869   result = websocket_interface_->SendMessage(ws, large_binary_var);
    870   ASSERT_EQ(PP_OK, result);
    871   ReleaseVar(text_var);
    872   ReleaseVar(binary_var);
    873   ReleaseVar(large_binary_var);
    874 
    875   // Receive echoed data.
    876   TestCompletionCallback callback(instance_->pp_instance(), callback_type());
    877   for (int i = 0; i <= 512; ++i) {
    878     PP_Var received_message;
    879     callback.WaitForResult(websocket_interface_->ReceiveMessage(
    880         ws, &received_message,
    881         callback.GetCallback().pp_completion_callback()));
    882     ASSERT_EQ(PP_OK, callback.result());
    883     if (i == 512) {
    884       ASSERT_TRUE(AreEqualWithBinary(received_message, large_binary));
    885     } else if (i & 1) {
    886       ASSERT_TRUE(AreEqualWithBinary(received_message, binary));
    887     } else {
    888       ASSERT_TRUE(AreEqualWithString(received_message, text));
    889     }
    890     ReleaseVar(received_message);
    891   }
    892   core_interface_->ReleaseResource(ws);
    893 
    894   PASS();
    895 }
    896 
    897 std::string TestWebSocket::TestBufferedAmount() {
    898   // Connect to test echo server.
    899   int32_t connect_result;
    900   PP_Resource ws =
    901       Connect(GetFullURL(kEchoServerURL), &connect_result, std::string());
    902   ASSERT_TRUE(ws);
    903   ASSERT_EQ(PP_OK, connect_result);
    904 
    905   // Prepare a large message that is not aligned with the internal buffer
    906   // sizes.
    907   std::string message(8193, 'x');
    908   PP_Var message_var = CreateVarString(message);
    909 
    910   uint64_t buffered_amount = 0;
    911   int32_t result;
    912   for (int i = 0; i < 100; i++) {
    913     result = websocket_interface_->SendMessage(ws, message_var);
    914     ASSERT_EQ(PP_OK, result);
    915     buffered_amount = websocket_interface_->GetBufferedAmount(ws);
    916     // Buffered amount size 262144 is too big for the internal buffer size.
    917     if (buffered_amount > 262144)
    918       break;
    919   }
    920 
    921   // Close connection.
    922   std::string reason_str = "close while busy";
    923   PP_Var reason = CreateVarString(reason_str.c_str());
    924   TestCompletionCallback callback(instance_->pp_instance(), callback_type());
    925   result = websocket_interface_->Close(
    926       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, reason,
    927       callback.GetCallback().pp_completion_callback());
    928   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
    929   ASSERT_EQ(PP_WEBSOCKETREADYSTATE_CLOSING,
    930       websocket_interface_->GetReadyState(ws));
    931 
    932   callback.WaitForResult(result);
    933   ASSERT_EQ(PP_OK, callback.result());
    934   ASSERT_EQ(PP_WEBSOCKETREADYSTATE_CLOSED,
    935       websocket_interface_->GetReadyState(ws));
    936 
    937   uint64_t base_buffered_amount = websocket_interface_->GetBufferedAmount(ws);
    938 
    939   // After connection closure, all sending requests fail and just increase
    940   // the bufferedAmount property.
    941   PP_Var empty_string = CreateVarString(std::string());
    942   result = websocket_interface_->SendMessage(ws, empty_string);
    943   ASSERT_EQ(PP_ERROR_FAILED, result);
    944   buffered_amount = websocket_interface_->GetBufferedAmount(ws);
    945   ASSERT_EQ(base_buffered_amount + kMessageFrameOverhead, buffered_amount);
    946   base_buffered_amount = buffered_amount;
    947 
    948   result = websocket_interface_->SendMessage(ws, reason);
    949   ASSERT_EQ(PP_ERROR_FAILED, result);
    950   buffered_amount = websocket_interface_->GetBufferedAmount(ws);
    951   uint64_t reason_frame_size = kMessageFrameOverhead + reason_str.length();
    952   ASSERT_EQ(base_buffered_amount + reason_frame_size, buffered_amount);
    953 
    954   ReleaseVar(message_var);
    955   ReleaseVar(reason);
    956   ReleaseVar(empty_string);
    957   core_interface_->ReleaseResource(ws);
    958 
    959   PASS();
    960 }
    961 
    962 // Test abort behaviors where a WebSocket PP_Resource is released while each
    963 // function is in-flight on the WebSocket PP_Resource.
    964 std::string TestWebSocket::TestAbortCallsWithCallback() {
    965   // Following tests make sure the behavior for functions which require a
    966   // callback. The callback must get a PP_ERROR_ABORTED.
    967 
    968   // Test the behavior for Connect().
    969   PP_Resource ws = websocket_interface_->Create(instance_->pp_instance());
    970   ASSERT_TRUE(ws);
    971   std::string url = GetFullURL(kEchoServerURL);
    972   PP_Var url_var = CreateVarString(url);
    973   TestCompletionCallback connect_callback(
    974       instance_->pp_instance(), callback_type());
    975   int32_t result = websocket_interface_->Connect(
    976       ws, url_var, NULL, 0,
    977       connect_callback.GetCallback().pp_completion_callback());
    978   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
    979   core_interface_->ReleaseResource(ws);
    980   connect_callback.WaitForResult(result);
    981   ASSERT_EQ(PP_ERROR_ABORTED, connect_callback.result());
    982 
    983   // Test the behavior for Close().
    984   ws = Connect(url, &result, std::string());
    985   ASSERT_TRUE(ws);
    986   ASSERT_EQ(PP_OK, result);
    987   PP_Var reason_var = CreateVarString("abort");
    988   TestCompletionCallback close_callback(
    989       instance_->pp_instance(), callback_type());
    990   result = websocket_interface_->Close(
    991       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, reason_var,
    992       close_callback.GetCallback().pp_completion_callback());
    993   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
    994   core_interface_->ReleaseResource(ws);
    995   close_callback.WaitForResult(result);
    996   ASSERT_EQ(PP_ERROR_ABORTED, close_callback.result());
    997   ReleaseVar(reason_var);
    998 
    999   // Test the behavior for ReceiveMessage().
   1000   // Make sure the simplest case to wait for data which never arrives, here.
   1001   ws = Connect(url, &result, std::string());
   1002   ASSERT_TRUE(ws);
   1003   ASSERT_EQ(PP_OK, result);
   1004   PP_Var receive_var;
   1005   TestCompletionCallback receive_callback(
   1006       instance_->pp_instance(), callback_type());
   1007   result = websocket_interface_->ReceiveMessage(
   1008       ws, &receive_var,
   1009       receive_callback.GetCallback().pp_completion_callback());
   1010   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1011   core_interface_->ReleaseResource(ws);
   1012   receive_callback.WaitForResult(result);
   1013   ASSERT_EQ(PP_ERROR_ABORTED, receive_callback.result());
   1014 
   1015   // Release the resource in the aborting receive completion callback which is
   1016   // introduced by calling Close().
   1017   ws = Connect(url, &result, std::string());
   1018   ASSERT_TRUE(ws);
   1019   ASSERT_EQ(PP_OK, result);
   1020   result = websocket_interface_->ReceiveMessage(
   1021       ws, &receive_var,
   1022       receive_callback.GetCallback().pp_completion_callback());
   1023   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1024   ReleaseResourceDelegate receive_delegate(core_interface_, ws);
   1025   receive_callback.SetDelegate(&receive_delegate);
   1026   result = websocket_interface_->Close(
   1027       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, PP_MakeUndefined(),
   1028       close_callback.GetCallback().pp_completion_callback());
   1029   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1030   receive_callback.WaitForResult(result);
   1031   CHECK_CALLBACK_BEHAVIOR(receive_callback);
   1032   ASSERT_EQ(PP_ERROR_ABORTED, receive_callback.result());
   1033   close_callback.WaitForResult(result);
   1034   CHECK_CALLBACK_BEHAVIOR(close_callback);
   1035   ASSERT_EQ(PP_ERROR_ABORTED, close_callback.result());
   1036 
   1037   ReleaseVar(url_var);
   1038 
   1039   PASS();
   1040 }
   1041 
   1042 std::string TestWebSocket::TestAbortSendMessageCall() {
   1043   // Test the behavior for SendMessage().
   1044   // This function doesn't require a callback, but operation will be done
   1045   // asynchronously in WebKit and browser process.
   1046   std::vector<uint8_t> large_binary(65 * 1024);
   1047   PP_Var large_var = CreateVarBinary(large_binary);
   1048 
   1049   int32_t result;
   1050   std::string url = GetFullURL(kEchoServerURL);
   1051   PP_Resource ws = Connect(url, &result, std::string());
   1052   ASSERT_TRUE(ws);
   1053   ASSERT_EQ(PP_OK, result);
   1054   result = websocket_interface_->SendMessage(ws, large_var);
   1055   ASSERT_EQ(PP_OK, result);
   1056   core_interface_->ReleaseResource(ws);
   1057   ReleaseVar(large_var);
   1058 
   1059   PASS();
   1060 }
   1061 
   1062 std::string TestWebSocket::TestAbortCloseCall() {
   1063   // Release the resource in the close completion callback.
   1064   int32_t result;
   1065   std::string url = GetFullURL(kEchoServerURL);
   1066   PP_Resource ws = Connect(url, &result, std::string());
   1067   ASSERT_TRUE(ws);
   1068   ASSERT_EQ(PP_OK, result);
   1069   TestCompletionCallback close_callback(
   1070       instance_->pp_instance(), callback_type());
   1071   result = websocket_interface_->Close(
   1072       ws, PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, PP_MakeUndefined(),
   1073       close_callback.GetCallback().pp_completion_callback());
   1074   ReleaseResourceDelegate close_delegate(core_interface_, ws);
   1075   close_callback.SetDelegate(&close_delegate);
   1076   close_callback.WaitForResult(result);
   1077   CHECK_CALLBACK_BEHAVIOR(close_callback);
   1078   ASSERT_EQ(PP_OK, close_callback.result());
   1079 
   1080   PASS();
   1081 }
   1082 
   1083 std::string TestWebSocket::TestAbortReceiveMessageCall() {
   1084   // Test the behavior where receive process might be in-flight.
   1085   std::vector<uint8_t> large_binary(65 * 1024);
   1086   PP_Var large_var = CreateVarBinary(large_binary);
   1087   const char* text = "yukarin";
   1088   PP_Var text_var = CreateVarString(text);
   1089 
   1090   std::string url = GetFullURL(kEchoServerURL);
   1091   int32_t result;
   1092   PP_Resource ws;
   1093 
   1094   // Each trial sends |trial_count| + 1 messages and receives just |trial|
   1095   // number of message(s) before releasing the WebSocket. The WebSocket is
   1096   // released while the next message is going to be received.
   1097   const int trial_count = 8;
   1098   for (int trial = 1; trial <= trial_count; trial++) {
   1099     ws = Connect(url, &result, std::string());
   1100     ASSERT_TRUE(ws);
   1101     ASSERT_EQ(PP_OK, result);
   1102     for (int i = 0; i <= trial_count; ++i) {
   1103       result = websocket_interface_->SendMessage(ws, text_var);
   1104       ASSERT_EQ(PP_OK, result);
   1105     }
   1106     TestCompletionCallback callback(instance_->pp_instance(), callback_type());
   1107     PP_Var var;
   1108     for (int i = 0; i < trial; ++i) {
   1109       callback.WaitForResult(websocket_interface_->ReceiveMessage(
   1110           ws, &var, callback.GetCallback().pp_completion_callback()));
   1111       ASSERT_EQ(PP_OK, callback.result());
   1112       ASSERT_TRUE(AreEqualWithString(var, text));
   1113       ReleaseVar(var);
   1114     }
   1115     result = websocket_interface_->ReceiveMessage(
   1116         ws, &var, callback.GetCallback().pp_completion_callback());
   1117     core_interface_->ReleaseResource(ws);
   1118     if (result != PP_OK) {
   1119       callback.WaitForResult(result);
   1120       ASSERT_EQ(PP_ERROR_ABORTED, callback.result());
   1121     }
   1122   }
   1123   // Same test, but the last receiving message is large message over 64KiB.
   1124   for (int trial = 1; trial <= trial_count; trial++) {
   1125     ws = Connect(url, &result, std::string());
   1126     ASSERT_TRUE(ws);
   1127     ASSERT_EQ(PP_OK, result);
   1128     for (int i = 0; i <= trial_count; ++i) {
   1129       if (i == trial)
   1130         result = websocket_interface_->SendMessage(ws, large_var);
   1131       else
   1132         result = websocket_interface_->SendMessage(ws, text_var);
   1133       ASSERT_EQ(PP_OK, result);
   1134     }
   1135     TestCompletionCallback callback(instance_->pp_instance(), callback_type());
   1136     PP_Var var;
   1137     for (int i = 0; i < trial; ++i) {
   1138       callback.WaitForResult(websocket_interface_->ReceiveMessage(
   1139           ws, &var, callback.GetCallback().pp_completion_callback()));
   1140       ASSERT_EQ(PP_OK, callback.result());
   1141       ASSERT_TRUE(AreEqualWithString(var, text));
   1142       ReleaseVar(var);
   1143     }
   1144     result = websocket_interface_->ReceiveMessage(
   1145         ws, &var, callback.GetCallback().pp_completion_callback());
   1146     core_interface_->ReleaseResource(ws);
   1147     if (result != PP_OK) {
   1148       callback.WaitForResult(result);
   1149       ASSERT_EQ(PP_ERROR_ABORTED, callback.result());
   1150     }
   1151   }
   1152 
   1153   ReleaseVar(large_var);
   1154   ReleaseVar(text_var);
   1155 
   1156   PASS();
   1157 }
   1158 
   1159 std::string TestWebSocket::TestCcInterfaces() {
   1160   // C++ bindings is simple straightforward, then just verifies interfaces work
   1161   // as a interface bridge fine.
   1162   pp::WebSocket ws(instance_);
   1163 
   1164   // Check uninitialized properties access.
   1165   ASSERT_EQ(0, ws.GetBufferedAmount());
   1166   ASSERT_EQ(0, ws.GetCloseCode());
   1167   ASSERT_TRUE(AreEqualWithString(ws.GetCloseReason().pp_var(), std::string()));
   1168   ASSERT_EQ(false, ws.GetCloseWasClean());
   1169   ASSERT_TRUE(AreEqualWithString(ws.GetExtensions().pp_var(), std::string()));
   1170   ASSERT_TRUE(AreEqualWithString(ws.GetProtocol().pp_var(), std::string()));
   1171   ASSERT_EQ(PP_WEBSOCKETREADYSTATE_INVALID, ws.GetReadyState());
   1172   ASSERT_TRUE(AreEqualWithString(ws.GetURL().pp_var(), std::string()));
   1173 
   1174   // Check communication interfaces (connect, send, receive, and close).
   1175   TestCompletionCallback connect_callback(
   1176       instance_->pp_instance(), callback_type());
   1177   connect_callback.WaitForResult(ws.Connect(
   1178       pp::Var(GetFullURL(kCloseServerURL)), NULL, 0U,
   1179               connect_callback.GetCallback()));
   1180   CHECK_CALLBACK_BEHAVIOR(connect_callback);
   1181   ASSERT_EQ(PP_OK, connect_callback.result());
   1182 
   1183   std::string text_message("hello C++");
   1184   int32_t result = ws.SendMessage(pp::Var(text_message));
   1185   ASSERT_EQ(PP_OK, result);
   1186 
   1187   std::vector<uint8_t> binary(256);
   1188   for (uint32_t i = 0; i < binary.size(); ++i)
   1189     binary[i] = i;
   1190   result = ws.SendMessage(
   1191       pp::Var(pp::PASS_REF, CreateVarBinary(binary)));
   1192   ASSERT_EQ(PP_OK, result);
   1193 
   1194   pp::Var text_receive_var;
   1195   TestCompletionCallback text_receive_callback(
   1196       instance_->pp_instance(), callback_type());
   1197   text_receive_callback.WaitForResult(
   1198       ws.ReceiveMessage(&text_receive_var,
   1199                         text_receive_callback.GetCallback()));
   1200   ASSERT_EQ(PP_OK, text_receive_callback.result());
   1201   ASSERT_TRUE(
   1202       AreEqualWithString(text_receive_var.pp_var(), text_message.c_str()));
   1203 
   1204   pp::Var binary_receive_var;
   1205   TestCompletionCallback binary_receive_callback(
   1206       instance_->pp_instance(), callback_type());
   1207   binary_receive_callback.WaitForResult(
   1208       ws.ReceiveMessage(&binary_receive_var,
   1209                         binary_receive_callback.GetCallback()));
   1210   ASSERT_EQ(PP_OK, binary_receive_callback.result());
   1211   ASSERT_TRUE(AreEqualWithBinary(binary_receive_var.pp_var(), binary));
   1212 
   1213   TestCompletionCallback close_callback(
   1214       instance_->pp_instance(), callback_type());
   1215   std::string reason("bye");
   1216   close_callback.WaitForResult(ws.Close(
   1217       PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, pp::Var(reason),
   1218       close_callback.GetCallback()));
   1219   CHECK_CALLBACK_BEHAVIOR(close_callback);
   1220   ASSERT_EQ(PP_OK, close_callback.result());
   1221 
   1222   // Check initialized properties access.
   1223   ASSERT_EQ(0, ws.GetBufferedAmount());
   1224   ASSERT_EQ(PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, ws.GetCloseCode());
   1225   ASSERT_TRUE(
   1226       AreEqualWithString(ws.GetCloseReason().pp_var(), reason.c_str()));
   1227   ASSERT_EQ(true, ws.GetCloseWasClean());
   1228   ASSERT_TRUE(AreEqualWithString(ws.GetProtocol().pp_var(), std::string()));
   1229   ASSERT_EQ(PP_WEBSOCKETREADYSTATE_CLOSED, ws.GetReadyState());
   1230   ASSERT_TRUE(AreEqualWithString(
   1231       ws.GetURL().pp_var(), GetFullURL(kCloseServerURL).c_str()));
   1232 
   1233   PASS();
   1234 }
   1235 
   1236 std::string TestWebSocket::TestUtilityInvalidConnect() {
   1237   const pp::Var protocols[] = { pp::Var() };
   1238 
   1239   TestWebSocketAPI websocket(instance_);
   1240   int32_t result = websocket.Connect(pp::Var(), protocols, 1U);
   1241   ASSERT_EQ(PP_ERROR_BADARGUMENT, result);
   1242   ASSERT_EQ(0U, websocket.GetSeenEvents().size());
   1243 
   1244   result = websocket.Connect(pp::Var(), protocols, 1U);
   1245   ASSERT_EQ(PP_ERROR_INPROGRESS, result);
   1246   ASSERT_EQ(0U, websocket.GetSeenEvents().size());
   1247 
   1248   for (int i = 0; kInvalidURLs[i]; ++i) {
   1249     TestWebSocketAPI ws(instance_);
   1250     result = ws.Connect(pp::Var(std::string(kInvalidURLs[i])), protocols, 0U);
   1251     if (result == PP_OK_COMPLETIONPENDING) {
   1252       ws.WaitForClosed();
   1253       const std::vector<WebSocketEvent>& events = ws.GetSeenEvents();
   1254       ASSERT_EQ(WebSocketEvent::EVENT_ERROR, events[0].event_type);
   1255       ASSERT_EQ(WebSocketEvent::EVENT_CLOSE, events[1].event_type);
   1256       ASSERT_EQ(2U, ws.GetSeenEvents().size());
   1257     } else {
   1258       ASSERT_EQ(PP_ERROR_BADARGUMENT, result);
   1259       ASSERT_EQ(0U, ws.GetSeenEvents().size());
   1260     }
   1261   }
   1262 
   1263   PASS();
   1264 }
   1265 
   1266 std::string TestWebSocket::TestUtilityProtocols() {
   1267   const pp::Var bad_protocols[] = {
   1268       pp::Var(std::string("x-test")), pp::Var(std::string("x-test")) };
   1269   const pp::Var good_protocols[] = {
   1270       pp::Var(std::string("x-test")), pp::Var(std::string("x-yatest")) };
   1271 
   1272   {
   1273     TestWebSocketAPI websocket(instance_);
   1274     int32_t result = websocket.Connect(
   1275         pp::Var(GetFullURL(kEchoServerURL)), bad_protocols, 2U);
   1276     ASSERT_EQ(PP_ERROR_BADARGUMENT, result);
   1277     ASSERT_EQ(0U, websocket.GetSeenEvents().size());
   1278   }
   1279 
   1280   {
   1281     TestWebSocketAPI websocket(instance_);
   1282     int32_t result = websocket.Connect(
   1283         pp::Var(GetFullURL(kEchoServerURL)), good_protocols, 2U);
   1284     ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1285     websocket.WaitForConnected();
   1286     const std::vector<WebSocketEvent>& events = websocket.GetSeenEvents();
   1287     // Protocol arguments are valid, but this test run without a WebSocket
   1288     // server. As a result, OnError() and OnClose() are invoked because of
   1289     // a connection establishment failure.
   1290     ASSERT_EQ(2U, events.size());
   1291     ASSERT_EQ(WebSocketEvent::EVENT_ERROR, events[0].event_type);
   1292     ASSERT_EQ(WebSocketEvent::EVENT_CLOSE, events[1].event_type);
   1293     ASSERT_FALSE(events[1].was_clean);
   1294   }
   1295 
   1296   PASS();
   1297 }
   1298 
   1299 std::string TestWebSocket::TestUtilityGetURL() {
   1300   const pp::Var protocols[] = { pp::Var() };
   1301 
   1302   for (int i = 0; kInvalidURLs[i]; ++i) {
   1303     TestWebSocketAPI websocket(instance_);
   1304     int32_t result = websocket.Connect(
   1305         pp::Var(std::string(kInvalidURLs[i])), protocols, 0U);
   1306     if (result == PP_OK_COMPLETIONPENDING) {
   1307       websocket.WaitForClosed();
   1308       const std::vector<WebSocketEvent>& events = websocket.GetSeenEvents();
   1309       ASSERT_EQ(WebSocketEvent::EVENT_ERROR, events[0].event_type);
   1310       ASSERT_EQ(WebSocketEvent::EVENT_CLOSE, events[1].event_type);
   1311       ASSERT_EQ(2U, events.size());
   1312     } else {
   1313       ASSERT_EQ(PP_ERROR_BADARGUMENT, result);
   1314       ASSERT_EQ(0U, websocket.GetSeenEvents().size());
   1315     }
   1316     pp::Var url = websocket.GetURL();
   1317     ASSERT_TRUE(AreEqualWithString(url.pp_var(), kInvalidURLs[i]));
   1318   }
   1319 
   1320   PASS();
   1321 }
   1322 
   1323 std::string TestWebSocket::TestUtilityValidConnect() {
   1324   const pp::Var protocols[] = { pp::Var() };
   1325   TestWebSocketAPI websocket(instance_);
   1326   int32_t result = websocket.Connect(
   1327       pp::Var(GetFullURL(kEchoServerURL)), protocols, 0U);
   1328   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1329   websocket.WaitForConnected();
   1330   const std::vector<WebSocketEvent>& events = websocket.GetSeenEvents();
   1331   ASSERT_EQ(1U, events.size());
   1332   ASSERT_EQ(WebSocketEvent::EVENT_OPEN, events[0].event_type);
   1333   ASSERT_TRUE(
   1334       AreEqualWithString(websocket.GetExtensions().pp_var(), std::string()));
   1335 
   1336   PASS();
   1337 }
   1338 
   1339 std::string TestWebSocket::TestUtilityInvalidClose() {
   1340   const pp::Var reason = pp::Var(std::string("close for test"));
   1341 
   1342   // Close before connect.
   1343   {
   1344     TestWebSocketAPI websocket(instance_);
   1345     int32_t result = websocket.Close(
   1346         PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, reason);
   1347     ASSERT_EQ(PP_ERROR_FAILED, result);
   1348     ASSERT_EQ(0U, websocket.GetSeenEvents().size());
   1349   }
   1350 
   1351   // Close with bad arguments.
   1352   {
   1353     TestWebSocketAPI websocket(instance_);
   1354     int32_t result = websocket.Connect(pp::Var(GetFullURL(kEchoServerURL)),
   1355         NULL, 0);
   1356     ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1357     websocket.WaitForConnected();
   1358     result = websocket.Close(1U, reason);
   1359     ASSERT_EQ(PP_ERROR_NOACCESS, result);
   1360     const std::vector<WebSocketEvent>& events = websocket.GetSeenEvents();
   1361     ASSERT_EQ(1U, events.size());
   1362     ASSERT_EQ(WebSocketEvent::EVENT_OPEN, events[0].event_type);
   1363   }
   1364 
   1365   PASS();
   1366 }
   1367 
   1368 std::string TestWebSocket::TestUtilityValidClose() {
   1369   std::string reason("close for test");
   1370   pp::Var url = pp::Var(GetFullURL(kCloseServerURL));
   1371 
   1372   // Close.
   1373   {
   1374     TestWebSocketAPI websocket(instance_);
   1375     int32_t result = websocket.Connect(url, NULL, 0U);
   1376     ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1377     websocket.WaitForConnected();
   1378     result = websocket.Close(
   1379         PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, pp::Var(reason));
   1380     ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1381     websocket.WaitForClosed();
   1382     const std::vector<WebSocketEvent>& events = websocket.GetSeenEvents();
   1383     ASSERT_EQ(2U, events.size());
   1384     ASSERT_EQ(WebSocketEvent::EVENT_OPEN, events[0].event_type);
   1385     ASSERT_EQ(WebSocketEvent::EVENT_CLOSE, events[1].event_type);
   1386     ASSERT_TRUE(events[1].was_clean);
   1387     ASSERT_EQ(PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, events[1].close_code);
   1388     ASSERT_TRUE(AreEqualWithString(events[1].var.pp_var(), reason.c_str()));
   1389   }
   1390 
   1391   // Close in connecting.
   1392   // The ongoing connect failed with PP_ERROR_ABORTED, then the close is done
   1393   // successfully.
   1394   {
   1395     TestWebSocketAPI websocket(instance_);
   1396     int32_t result = websocket.Connect(url, NULL, 0U);
   1397     ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1398     result = websocket.Close(
   1399         PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, pp::Var(reason));
   1400     ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1401     websocket.WaitForClosed();
   1402     const std::vector<WebSocketEvent>& events = websocket.GetSeenEvents();
   1403     ASSERT_TRUE(events.size() == 2 || events.size() == 3);
   1404     int index = 0;
   1405     if (events.size() == 3)
   1406       ASSERT_EQ(WebSocketEvent::EVENT_OPEN, events[index++].event_type);
   1407     ASSERT_EQ(WebSocketEvent::EVENT_ERROR, events[index++].event_type);
   1408     ASSERT_EQ(WebSocketEvent::EVENT_CLOSE, events[index].event_type);
   1409     ASSERT_FALSE(events[index].was_clean);
   1410   }
   1411 
   1412   // Close in closing.
   1413   // The first close will be done successfully, then the second one failed with
   1414   // with PP_ERROR_INPROGRESS immediately.
   1415   {
   1416     TestWebSocketAPI websocket(instance_);
   1417     int32_t result = websocket.Connect(url, NULL, 0U);
   1418     result = websocket.Close(
   1419         PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, pp::Var(reason));
   1420     ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1421     result = websocket.Close(
   1422         PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, pp::Var(reason));
   1423     ASSERT_EQ(PP_ERROR_INPROGRESS, result);
   1424     websocket.WaitForClosed();
   1425     const std::vector<WebSocketEvent>& events = websocket.GetSeenEvents();
   1426     ASSERT_TRUE(events.size() == 2 || events.size() == 3);
   1427     int index = 0;
   1428     if (events.size() == 3)
   1429       ASSERT_EQ(WebSocketEvent::EVENT_OPEN, events[index++].event_type);
   1430     ASSERT_EQ(WebSocketEvent::EVENT_ERROR, events[index++].event_type);
   1431     ASSERT_EQ(WebSocketEvent::EVENT_CLOSE, events[index].event_type);
   1432     ASSERT_FALSE(events[index].was_clean);
   1433   }
   1434 
   1435   PASS();
   1436 }
   1437 
   1438 std::string TestWebSocket::TestUtilityGetProtocol() {
   1439   const std::string protocol("x-chat");
   1440   const pp::Var protocols[] = { pp::Var(protocol) };
   1441   std::string url(GetFullURL(kProtocolTestServerURL));
   1442   url += protocol;
   1443   TestWebSocketAPI websocket(instance_);
   1444   int32_t result = websocket.Connect(pp::Var(url), protocols, 1U);
   1445   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1446   websocket.WaitForReceived();
   1447   ASSERT_TRUE(AreEqualWithString(
   1448       websocket.GetProtocol().pp_var(), protocol.c_str()));
   1449   const std::vector<WebSocketEvent>& events = websocket.GetSeenEvents();
   1450   // The server to which this test connect returns the decided protocol as a
   1451   // text frame message. So the WebSocketEvent records EVENT_MESSAGE event
   1452   // after EVENT_OPEN event.
   1453   ASSERT_EQ(2U, events.size());
   1454   ASSERT_EQ(WebSocketEvent::EVENT_OPEN, events[0].event_type);
   1455   ASSERT_EQ(WebSocketEvent::EVENT_MESSAGE, events[1].event_type);
   1456   ASSERT_TRUE(AreEqualWithString(events[1].var.pp_var(), protocol.c_str()));
   1457 
   1458   PASS();
   1459 }
   1460 
   1461 std::string TestWebSocket::TestUtilityTextSendReceive() {
   1462   const pp::Var protocols[] = { pp::Var() };
   1463   TestWebSocketAPI websocket(instance_);
   1464   int32_t result =
   1465       websocket.Connect(pp::Var(GetFullURL(kEchoServerURL)), protocols, 0U);
   1466   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1467   websocket.WaitForConnected();
   1468 
   1469   // Send 'hello pepper'.
   1470   std::string message1("hello pepper");
   1471   result = websocket.Send(pp::Var(std::string(message1)));
   1472   ASSERT_EQ(PP_OK, result);
   1473 
   1474   // Receive echoed 'hello pepper'.
   1475   websocket.WaitForReceived();
   1476 
   1477   // Send 'goodbye pepper'.
   1478   std::string message2("goodbye pepper");
   1479   result = websocket.Send(pp::Var(std::string(message2)));
   1480 
   1481   // Receive echoed 'goodbye pepper'.
   1482   websocket.WaitForReceived();
   1483 
   1484   const std::vector<WebSocketEvent>& events = websocket.GetSeenEvents();
   1485   ASSERT_EQ(3U, events.size());
   1486   ASSERT_EQ(WebSocketEvent::EVENT_OPEN, events[0].event_type);
   1487   ASSERT_EQ(WebSocketEvent::EVENT_MESSAGE, events[1].event_type);
   1488   ASSERT_TRUE(AreEqualWithString(events[1].var.pp_var(), message1.c_str()));
   1489   ASSERT_EQ(WebSocketEvent::EVENT_MESSAGE, events[2].event_type);
   1490   ASSERT_TRUE(AreEqualWithString(events[2].var.pp_var(), message2.c_str()));
   1491 
   1492   PASS();
   1493 }
   1494 
   1495 std::string TestWebSocket::TestUtilityBinarySendReceive() {
   1496   const pp::Var protocols[] = { pp::Var() };
   1497   TestWebSocketAPI websocket(instance_);
   1498   int32_t result =
   1499       websocket.Connect(pp::Var(GetFullURL(kEchoServerURL)), protocols, 0U);
   1500   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1501   websocket.WaitForConnected();
   1502 
   1503   // Send binary message.
   1504   uint32_t len = 256;
   1505   std::vector<uint8_t> binary(len);
   1506   for (uint32_t i = 0; i < len; ++i)
   1507     binary[i] = i;
   1508   pp::VarArrayBuffer message(len);
   1509   uint8_t* var_data = static_cast<uint8_t*>(message.Map());
   1510   std::copy(binary.begin(), binary.end(), var_data);
   1511   result = websocket.Send(message);
   1512   ASSERT_EQ(PP_OK, result);
   1513 
   1514   // Receive echoed binary message.
   1515   websocket.WaitForReceived();
   1516 
   1517   const std::vector<WebSocketEvent>& events = websocket.GetSeenEvents();
   1518   ASSERT_EQ(2U, events.size());
   1519   ASSERT_EQ(WebSocketEvent::EVENT_OPEN, events[0].event_type);
   1520   ASSERT_EQ(WebSocketEvent::EVENT_MESSAGE, events[1].event_type);
   1521   ASSERT_TRUE(AreEqualWithBinary(events[1].var.pp_var(), binary));
   1522 
   1523   PASS();
   1524 }
   1525 
   1526 std::string TestWebSocket::TestUtilityBufferedAmount() {
   1527   // Connect to test echo server.
   1528   const pp::Var protocols[] = { pp::Var() };
   1529   TestWebSocketAPI websocket(instance_);
   1530   int32_t result =
   1531       websocket.Connect(pp::Var(GetFullURL(kEchoServerURL)), protocols, 0U);
   1532   ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
   1533   websocket.WaitForConnected();
   1534 
   1535   // Prepare a large message that is not aligned with the internal buffer
   1536   // sizes.
   1537   std::string message(8193, 'x');
   1538   uint64_t buffered_amount = 0;
   1539   uint32_t sent;
   1540   for (sent = 0; sent < 100; sent++) {
   1541     result = websocket.Send(pp::Var(message));
   1542     ASSERT_EQ(PP_OK, result);
   1543     buffered_amount = websocket.GetBufferedAmount();
   1544     // Buffered amount size 262144 is too big for the internal buffer size.
   1545     if (buffered_amount > 262144)
   1546       break;
   1547   }
   1548 
   1549   // Close connection.
   1550   std::string reason = "close while busy";
   1551   result = websocket.Close(
   1552       PP_WEBSOCKETSTATUSCODE_NORMAL_CLOSURE, pp::Var(reason));
   1553   ASSERT_EQ(PP_WEBSOCKETREADYSTATE_CLOSING, websocket.GetReadyState());
   1554   websocket.WaitForClosed();
   1555   ASSERT_EQ(PP_WEBSOCKETREADYSTATE_CLOSED, websocket.GetReadyState());
   1556 
   1557   uint64_t base_buffered_amount = websocket.GetBufferedAmount();
   1558   size_t events_on_closed = websocket.GetSeenEvents().size();
   1559 
   1560   // After connection closure, all sending requests fail and just increase
   1561   // the bufferedAmount property.
   1562   result = websocket.Send(pp::Var(std::string()));
   1563   ASSERT_EQ(PP_ERROR_FAILED, result);
   1564   buffered_amount = websocket.GetBufferedAmount();
   1565   ASSERT_EQ(base_buffered_amount + kMessageFrameOverhead, buffered_amount);
   1566   base_buffered_amount = buffered_amount;
   1567 
   1568   result = websocket.Send(pp::Var(reason));
   1569   ASSERT_EQ(PP_ERROR_FAILED, result);
   1570   buffered_amount = websocket.GetBufferedAmount();
   1571   uint64_t reason_frame_size = kMessageFrameOverhead + reason.length();
   1572   ASSERT_EQ(base_buffered_amount + reason_frame_size, buffered_amount);
   1573 
   1574   const std::vector<WebSocketEvent>& events = websocket.GetSeenEvents();
   1575   ASSERT_EQ(events_on_closed, events.size());
   1576   ASSERT_EQ(WebSocketEvent::EVENT_OPEN, events[0].event_type);
   1577   size_t last_event = events_on_closed - 1;
   1578   for (uint32_t i = 1; i < last_event; ++i) {
   1579     ASSERT_EQ(WebSocketEvent::EVENT_MESSAGE, events[i].event_type);
   1580     ASSERT_TRUE(AreEqualWithString(events[i].var.pp_var(), message));
   1581   }
   1582   ASSERT_EQ(WebSocketEvent::EVENT_CLOSE, events[last_event].event_type);
   1583   ASSERT_TRUE(events[last_event].was_clean);
   1584 
   1585   PASS();
   1586 }
   1587