Revert of Moves mojo_js_integration_tests into blink.

third_party/WebKit/Source/core/mojo/tests/JsToCppTest.cpp

Index: third_party/WebKit/Source/core/mojo/tests/JsToCppTest.cpp
diff --git a/third_party/WebKit/Source/core/mojo/tests/JsToCppTest.cpp b/third_party/WebKit/Source/core/mojo/tests/JsToCppTest.cpp
deleted file mode 100644
index 2b7ada7a0a41bfc44538f108598d5076b11db82e..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/core/mojo/tests/JsToCppTest.cpp
+++ /dev/null
@@ -1,435 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "bindings/core/v8/ScriptController.h"
-#include "bindings/core/v8/ScriptSourceCode.h"
-#include "bindings/core/v8/V8BindingForCore.h"
-#include "bindings/core/v8/V8BindingForTesting.h"
-#include "bindings/core/v8/V8ScriptRunner.h"
-#include "core/frame/Settings.h"
-#include "core/mojo/MojoHandle.h"
-#include "core/page/Page.h"
-#include "mojo/public/cpp/bindings/binding.h"
-#include "mojo/public/cpp/system/wait.h"
-#include "platform/testing/UnitTestHelpers.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/WebKit/Source/core/mojo/tests/JsToCpp.mojom-blink.h"
-
-namespace blink {
-namespace {
-
-// Global value updated by some checks to prevent compilers from optimizing
-// reads out of existence.
-uint32_t g_waste_accumulator = 0;
-
-// Negative numbers with different values in each byte, the last of
-// which can survive promotion to double and back.
-const int8_t kExpectedInt8Value = -65;
-const int16_t kExpectedInt16Value = -16961;
-const int32_t kExpectedInt32Value = -1145258561;
-const int64_t kExpectedInt64Value = -77263311946305LL;
-
-// Positive numbers with different values in each byte, the last of
-// which can survive promotion to double and back.
-const uint8_t kExpectedUInt8Value = 65;
-const uint16_t kExpectedUInt16Value = 16961;
-const uint32_t kExpectedUInt32Value = 1145258561;
-const uint64_t kExpectedUInt64Value = 77263311946305LL;
-
-// Double/float values, including special case constants.
-const double kExpectedDoubleVal = 3.14159265358979323846;
-const double kExpectedDoubleInf = std::numeric_limits<double>::infinity();
-const double kExpectedDoubleNan = std::numeric_limits<double>::quiet_NaN();
-const float kExpectedFloatVal = static_cast<float>(kExpectedDoubleVal);
-const float kExpectedFloatInf = std::numeric_limits<float>::infinity();
-const float kExpectedFloatNan = std::numeric_limits<float>::quiet_NaN();
-
-// NaN has the property that it is not equal to itself.
-#define EXPECT_NAN(x) EXPECT_NE(x, x)
-
-String MojoBindingsScriptPath() {
-  String filepath = testing::ExecutableDir();
-  filepath.append("/gen/mojo/public/js/mojo_bindings.js");
-  return filepath;
-}
-
-String TestBindingsScriptPath() {
-  String filepath = testing::ExecutableDir();
-  filepath.append(
-      "/gen/third_party/WebKit/Source/core/mojo/tests/JsToCpp.mojom.js");
-  return filepath;
-}
-
-String TestScriptPath() {
-  String filepath = testing::BlinkRootDir();
-  filepath.append("/Source/core/mojo/tests/JsToCppTest.js");
-  return filepath;
-}
-
-v8::Local<v8::Value> ExecuteScript(const String& script_path,
-                                   LocalFrame& frame) {
-  RefPtr<SharedBuffer> script_src = testing::ReadFromFile(script_path);
-  return frame.GetScriptController().ExecuteScriptInMainWorldAndReturnValue(
-      ScriptSourceCode(String(script_src->Data(), script_src->size())));
-}
-
-void CheckDataPipe(mojo::DataPipeConsumerHandle data_pipe_handle) {
-  const void* buffer = nullptr;
-  unsigned num_bytes = 0;
-  MojoResult result = Wait(data_pipe_handle, MOJO_HANDLE_SIGNAL_READABLE);
-  EXPECT_EQ(MOJO_RESULT_OK, result);
-  result = BeginReadDataRaw(data_pipe_handle, &buffer, &num_bytes,
-                            MOJO_READ_DATA_FLAG_NONE);
-  EXPECT_EQ(MOJO_RESULT_OK, result);
-  EXPECT_EQ(64u, num_bytes);
-  for (unsigned i = 0; i < num_bytes; ++i) {
-    EXPECT_EQ(i, static_cast<unsigned>(static_cast<const char*>(buffer)[i]));
-  }
-  EndReadDataRaw(data_pipe_handle, num_bytes);
-}
-
-void CheckMessagePipe(mojo::MessagePipeHandle message_pipe_handle) {
-  unsigned char buffer[100];
-  uint32_t buffer_size = static_cast<uint32_t>(sizeof(buffer));
-  MojoResult result = Wait(message_pipe_handle, MOJO_HANDLE_SIGNAL_READABLE);
-  EXPECT_EQ(MOJO_RESULT_OK, result);
-  result = ReadMessageRaw(message_pipe_handle, buffer, &buffer_size, 0, 0, 0);
-  EXPECT_EQ(MOJO_RESULT_OK, result);
-  EXPECT_EQ(64u, buffer_size);
-  for (int i = 0; i < 64; ++i) {
-    EXPECT_EQ(255 - i, buffer[i]);
-  }
-}
-
-js_to_cpp::blink::EchoArgsPtr BuildSampleEchoArgs() {
-  auto args = js_to_cpp::blink::EchoArgs::New();
-  args->si64 = kExpectedInt64Value;
-  args->si32 = kExpectedInt32Value;
-  args->si16 = kExpectedInt16Value;
-  args->si8 = kExpectedInt8Value;
-  args->ui64 = kExpectedUInt64Value;
-  args->ui32 = kExpectedUInt32Value;
-  args->ui16 = kExpectedUInt16Value;
-  args->ui8 = kExpectedUInt8Value;
-  args->float_val = kExpectedFloatVal;
-  args->float_inf = kExpectedFloatInf;
-  args->float_nan = kExpectedFloatNan;
-  args->double_val = kExpectedDoubleVal;
-  args->double_inf = kExpectedDoubleInf;
-  args->double_nan = kExpectedDoubleNan;
-  args->name = "coming";
-  args->string_array.emplace(3);
-  (*args->string_array)[0] = "one";
-  (*args->string_array)[1] = "two";
-  (*args->string_array)[2] = "three";
-  return args;
-}
-
-void CheckSampleEchoArgs(const js_to_cpp::blink::EchoArgsPtr& arg) {
-  EXPECT_EQ(kExpectedInt64Value, arg->si64);
-  EXPECT_EQ(kExpectedInt32Value, arg->si32);
-  EXPECT_EQ(kExpectedInt16Value, arg->si16);
-  EXPECT_EQ(kExpectedInt8Value, arg->si8);
-  EXPECT_EQ(kExpectedUInt64Value, arg->ui64);
-  EXPECT_EQ(kExpectedUInt32Value, arg->ui32);
-  EXPECT_EQ(kExpectedUInt16Value, arg->ui16);
-  EXPECT_EQ(kExpectedUInt8Value, arg->ui8);
-  EXPECT_EQ(kExpectedFloatVal, arg->float_val);
-  EXPECT_EQ(kExpectedFloatInf, arg->float_inf);
-  EXPECT_NAN(arg->float_nan);
-  EXPECT_EQ(kExpectedDoubleVal, arg->double_val);
-  EXPECT_EQ(kExpectedDoubleInf, arg->double_inf);
-  EXPECT_NAN(arg->double_nan);
-  EXPECT_EQ(String("coming"), arg->name);
-  EXPECT_EQ(String("one"), (*arg->string_array)[0]);
-  EXPECT_EQ(String("two"), (*arg->string_array)[1]);
-  EXPECT_EQ(String("three"), (*arg->string_array)[2]);
-  CheckDataPipe(arg->data_handle.get());
-  CheckMessagePipe(arg->message_handle.get());
-}
-
-void CheckSampleEchoArgsList(const js_to_cpp::blink::EchoArgsListPtr& list) {
-  if (list.is_null())
-    return;
-  CheckSampleEchoArgs(list->item);
-  CheckSampleEchoArgsList(list->next);
-}
-
-// More forgiving checks are needed in the face of potentially corrupt
-// messages. The values don't matter so long as all accesses are within
-// bounds.
-void CheckCorruptedString(const String& arg) {
-  for (size_t i = 0; i < arg.length(); ++i)
-    g_waste_accumulator += arg[i];
-}
-
-void CheckCorruptedStringArray(const Optional<Vector<String>>& string_array) {
-  if (!string_array)
-    return;
-  for (size_t i = 0; i < string_array->size(); ++i)
-    CheckCorruptedString((*string_array)[i]);
-}
-
-void CheckCorruptedDataPipe(mojo::DataPipeConsumerHandle data_pipe_handle) {
-  unsigned char buffer[100];
-  uint32_t buffer_size = static_cast<uint32_t>(sizeof(buffer));
-  MojoResult result = ReadDataRaw(data_pipe_handle, buffer, &buffer_size,
-                                  MOJO_READ_DATA_FLAG_NONE);
-  if (result != MOJO_RESULT_OK)
-    return;
-  for (uint32_t i = 0; i < buffer_size; ++i)
-    g_waste_accumulator += buffer[i];
-}
-
-void CheckCorruptedMessagePipe(mojo::MessagePipeHandle message_pipe_handle) {
-  unsigned char buffer[100];
-  uint32_t buffer_size = static_cast<uint32_t>(sizeof(buffer));
-  MojoResult result =
-      ReadMessageRaw(message_pipe_handle, buffer, &buffer_size, 0, 0, 0);
-  if (result != MOJO_RESULT_OK)
-    return;
-  for (uint32_t i = 0; i < buffer_size; ++i)
-    g_waste_accumulator += buffer[i];
-}
-
-void CheckCorruptedEchoArgs(const js_to_cpp::blink::EchoArgsPtr& arg) {
-  if (arg.is_null())
-    return;
-  CheckCorruptedString(arg->name);
-  CheckCorruptedStringArray(arg->string_array);
-  if (arg->data_handle.is_valid())
-    CheckCorruptedDataPipe(arg->data_handle.get());
-  if (arg->message_handle.is_valid())
-    CheckCorruptedMessagePipe(arg->message_handle.get());
-}
-
-void CheckCorruptedEchoArgsList(const js_to_cpp::blink::EchoArgsListPtr& list) {
-  if (list.is_null())
-    return;
-  CheckCorruptedEchoArgs(list->item);
-  CheckCorruptedEchoArgsList(list->next);
-}
-
-// Base Provider implementation class. It's expected that tests subclass and
-// override the appropriate Provider functions. When test is done quit the
-// run_loop().
-class CppSideConnection : public js_to_cpp::blink::CppSide {
- public:
-  CppSideConnection() : mishandled_messages_(0), binding_(this) {}
-  ~CppSideConnection() override {}
-
-  void set_js_side(js_to_cpp::blink::JsSidePtr js_side) {
-    js_side_ = std::move(js_side);
-  }
-  js_to_cpp::blink::JsSide* js_side() { return js_side_.get(); }
-
-  void Bind(mojo::InterfaceRequest<js_to_cpp::blink::CppSide> request) {
-    binding_.Bind(std::move(request));
-    // Keep the pipe open even after validation errors.
-    binding_.EnableTestingMode();
-  }
-
-  // js_to_cpp::CppSide:
-  void StartTest() override { NOTREACHED(); }
-
-  void TestFinished() override { NOTREACHED(); }
-
-  void PingResponse() override { mishandled_messages_ += 1; }
-
-  void EchoResponse(js_to_cpp::blink::EchoArgsListPtr list) override {
-    mishandled_messages_ += 1;
-  }
-
-  void BitFlipResponse(
-      js_to_cpp::blink::EchoArgsListPtr list,
-      js_to_cpp::blink::ForTestingAssociatedPtrInfo not_used) override {
-    mishandled_messages_ += 1;
-  }
-
-  void BackPointerResponse(js_to_cpp::blink::EchoArgsListPtr list) override {
-    mishandled_messages_ += 1;
-  }
-
- protected:
-  js_to_cpp::blink::JsSidePtr js_side_;
-  int mishandled_messages_;
-  mojo::Binding<js_to_cpp::blink::CppSide> binding_;
-};
-
-// Trivial test to verify a message sent from JS is received.
-class PingCppSideConnection : public CppSideConnection {
- public:
-  PingCppSideConnection() : got_message_(false) {}
-  ~PingCppSideConnection() override {}
-
-  // js_to_cpp::CppSide:
-  void StartTest() override { js_side_->Ping(); }
-
-  void PingResponse() override {
-    got_message_ = true;
-    testing::ExitRunLoop();
-  }
-
-  bool DidSucceed() { return got_message_ && !mishandled_messages_; }
-
- private:
-  bool got_message_;
-};
-
-// Test that parameters are passed with correct values.
-class EchoCppSideConnection : public CppSideConnection {
- public:
-  EchoCppSideConnection() : message_count_(0), termination_seen_(false) {}
-  ~EchoCppSideConnection() override {}
-
-  // js_to_cpp::CppSide:
-  void StartTest() override {
-    js_side_->Echo(kExpectedMessageCount, BuildSampleEchoArgs());
-  }
-
-  void EchoResponse(js_to_cpp::blink::EchoArgsListPtr list) override {
-    message_count_ += 1;
-
-    const js_to_cpp::blink::EchoArgsPtr& special_arg = list->item;
-    EXPECT_EQ(-1, special_arg->si64);
-    EXPECT_EQ(-1, special_arg->si32);
-    EXPECT_EQ(-1, special_arg->si16);
-    EXPECT_EQ(-1, special_arg->si8);
-    EXPECT_EQ(String("going"), special_arg->name);
-    CheckDataPipe(special_arg->data_handle.get());
-    CheckMessagePipe(special_arg->message_handle.get());
-
-    CheckSampleEchoArgsList(list->next);
-  }
-
-  void TestFinished() override {
-    termination_seen_ = true;
-    testing::ExitRunLoop();
-  }
-
-  bool DidSucceed() {
-    return termination_seen_ && !mishandled_messages_ &&
-           message_count_ == kExpectedMessageCount;
-  }
-
- private:
-  static const int kExpectedMessageCount = 10;
-  int message_count_;
-  bool termination_seen_;
-};
-
-// Test that corrupted messages don't wreak havoc.
-class BitFlipCppSideConnection : public CppSideConnection {
- public:
-  BitFlipCppSideConnection() : termination_seen_(false) {}
-  ~BitFlipCppSideConnection() override {}
-
-  // js_to_cpp::CppSide:
-  void StartTest() override { js_side_->BitFlip(BuildSampleEchoArgs()); }
-
-  void BitFlipResponse(
-      js_to_cpp::blink::EchoArgsListPtr list,
-      js_to_cpp::blink::ForTestingAssociatedPtrInfo not_used) override {
-    CheckCorruptedEchoArgsList(list);
-  }
-
-  void TestFinished() override {
-    termination_seen_ = true;
-    testing::ExitRunLoop();
-  }
-
-  bool DidSucceed() { return termination_seen_; }
-
- private:
-  bool termination_seen_;
-};
-
-// Test that severely random messages don't wreak havoc.
-class BackPointerCppSideConnection : public CppSideConnection {
- public:
-  BackPointerCppSideConnection() : termination_seen_(false) {}
-  ~BackPointerCppSideConnection() override {}
-
-  // js_to_cpp::CppSide:
-  void StartTest() override { js_side_->BackPointer(BuildSampleEchoArgs()); }
-
-  void BackPointerResponse(js_to_cpp::blink::EchoArgsListPtr list) override {
-    CheckCorruptedEchoArgsList(list);
-  }
-
-  void TestFinished() override {
-    termination_seen_ = true;
-    testing::ExitRunLoop();
-  }
-
-  bool DidSucceed() { return termination_seen_; }
-
- private:
-  bool termination_seen_;
-};
-
-class JsToCppTest : public ::testing::Test {
- public:
-  void RunTest(CppSideConnection* cpp_side) {
-    js_to_cpp::blink::CppSidePtr cpp_side_ptr;
-    cpp_side->Bind(MakeRequest(&cpp_side_ptr));
-
-    js_to_cpp::blink::JsSidePtr js_side_ptr;
-    auto js_side_request = MakeRequest(&js_side_ptr);
-    js_side_ptr->SetCppSide(std::move(cpp_side_ptr));
-    cpp_side->set_js_side(std::move(js_side_ptr));
-
-    V8TestingScope scope;
-    scope.GetPage().GetSettings().SetScriptEnabled(true);
-    ExecuteScript(MojoBindingsScriptPath(), scope.GetFrame());
-    ExecuteScript(TestBindingsScriptPath(), scope.GetFrame());
-
-    v8::Local<v8::Value> start_fn =
-        ExecuteScript(TestScriptPath(), scope.GetFrame());
-    ASSERT_FALSE(start_fn.IsEmpty());
-    ASSERT_TRUE(start_fn->IsFunction());
-    v8::Local<v8::Object> global_proxy = scope.GetContext()->Global();
-    v8::Local<v8::Value> args[1] = {
-        ToV8(MojoHandle::Create(
-                 mojo::ScopedHandle::From(js_side_request.PassMessagePipe())),
-             global_proxy, scope.GetIsolate())};
-    V8ScriptRunner::CallFunction(
-        start_fn.As<v8::Function>(), scope.GetExecutionContext(), global_proxy,
-        WTF_ARRAY_LENGTH(args), args, scope.GetIsolate());
-    testing::EnterRunLoop();
-  }
-};
-
-TEST_F(JsToCppTest, Ping) {
-  PingCppSideConnection cpp_side_connection;
-  RunTest(&cpp_side_connection);
-  EXPECT_TRUE(cpp_side_connection.DidSucceed());
-}
-
-TEST_F(JsToCppTest, Echo) {
-  EchoCppSideConnection cpp_side_connection;
-  RunTest(&cpp_side_connection);
-  EXPECT_TRUE(cpp_side_connection.DidSucceed());
-}
-
-TEST_F(JsToCppTest, BitFlip) {
-  // These tests generate a lot of expected validation errors. Suppress logging.
-  mojo::internal::ScopedSuppressValidationErrorLoggingForTests log_suppression;
-
-  BitFlipCppSideConnection cpp_side_connection;
-  RunTest(&cpp_side_connection);
-  EXPECT_TRUE(cpp_side_connection.DidSucceed());
-}
-
-TEST_F(JsToCppTest, BackPointer) {
-  // These tests generate a lot of expected validation errors. Suppress logging.
-  mojo::internal::ScopedSuppressValidationErrorLoggingForTests log_suppression;
-
-  BackPointerCppSideConnection cpp_side_connection;
-  RunTest(&cpp_side_connection);
-  EXPECT_TRUE(cpp_side_connection.DidSucceed());
-}
-
-}  // namespace
-}  // namespace blink