Reland of Moves mojo_js_integration_tests into blink.

mojo/edk/js/tests/js_to_cpp_tests.cc

Index: mojo/edk/js/tests/js_to_cpp_tests.cc
diff --git a/mojo/edk/js/tests/js_to_cpp_tests.cc b/mojo/edk/js/tests/js_to_cpp_tests.cc
deleted file mode 100644
index d193ffc9e8e73a5c57c12af822b1dc5d87bb70e5..0000000000000000000000000000000000000000
--- a/mojo/edk/js/tests/js_to_cpp_tests.cc
+++ /dev/null
@@ -1,459 +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 <stddef.h>
-#include <stdint.h>
-
-#include <string>
-#include <utility>
-
-#include "base/at_exit.h"
-#include "base/files/file_path.h"
-#include "base/files/file_util.h"
-#include "base/macros.h"
-#include "base/run_loop.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/test/scoped_task_environment.h"
-#include "base/threading/thread_task_runner_handle.h"
-#include "gin/array_buffer.h"
-#include "gin/public/isolate_holder.h"
-#include "gin/v8_initializer.h"
-#include "mojo/common/data_pipe_utils.h"
-#include "mojo/edk/js/mojo_runner_delegate.h"
-#include "mojo/edk/js/tests/js_to_cpp.mojom.h"
-#include "mojo/public/cpp/bindings/binding.h"
-#include "mojo/public/cpp/bindings/lib/validation_errors.h"
-#include "mojo/public/cpp/system/core.h"
-#include "mojo/public/cpp/system/wait.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace mojo {
-namespace edk {
-namespace js {
-
-// Global value updated by some checks to prevent compilers from optimizing
-// reads out of existence.
-uint32_t g_waste_accumulator = 0;
-
-namespace {
-
-// 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)
-
-void CheckDataPipe(ScopedDataPipeConsumerHandle data_pipe_handle) {
-  std::string buffer;
-  bool result = common::BlockingCopyToString(std::move(data_pipe_handle),
-                                             &buffer);
-  EXPECT_TRUE(result);
-  EXPECT_EQ(64u, buffer.size());
-  for (int i = 0; i < 64; ++i) {
-    EXPECT_EQ(i, buffer[i]);
-  }
-}
-
-void CheckMessagePipe(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::EchoArgsPtr BuildSampleEchoArgs() {
-  js_to_cpp::EchoArgsPtr args(js_to_cpp::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.emplace("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(js_to_cpp::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(std::string("coming"), *arg->name);
-  EXPECT_EQ(std::string("one"), (*arg->string_array)[0]);
-  EXPECT_EQ(std::string("two"), (*arg->string_array)[1]);
-  EXPECT_EQ(std::string("three"), (*arg->string_array)[2]);
-  CheckDataPipe(std::move(arg->data_handle));
-  CheckMessagePipe(arg->message_handle.get());
-}
-
-void CheckSampleEchoArgsList(const js_to_cpp::EchoArgsListPtr& list) {
-  if (list.is_null())
-    return;
-  CheckSampleEchoArgs(std::move(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 std::string& arg) {
-  for (size_t i = 0; i < arg.size(); ++i)
-    g_waste_accumulator += arg[i];
-}
-
-void CheckCorruptedString(const base::Optional<std::string>& arg) {
-  if (!arg)
-    return;
-  CheckCorruptedString(*arg);
-}
-
-void CheckCorruptedStringArray(
-    const base::Optional<std::vector<std::string>>& string_array) {
-  if (!string_array)
-    return;
-  for (size_t i = 0; i < string_array->size(); ++i)
-    CheckCorruptedString((*string_array)[i]);
-}
-
-void CheckCorruptedDataPipe(MojoHandle data_pipe_handle) {
-  unsigned char buffer[100];
-  uint32_t buffer_size = static_cast<uint32_t>(sizeof(buffer));
-  MojoResult result = MojoReadData(
-      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(MojoHandle message_pipe_handle) {
-  unsigned char buffer[100];
-  uint32_t buffer_size = static_cast<uint32_t>(sizeof(buffer));
-  MojoResult result = MojoReadMessage(
-      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::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().value());
-  if (arg->message_handle.is_valid())
-    CheckCorruptedMessagePipe(arg->message_handle.get().value());
-}
-
-void CheckCorruptedEchoArgsList(const js_to_cpp::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::CppSide {
- public:
-  CppSideConnection()
-      : run_loop_(nullptr),
-        js_side_(nullptr),
-        mishandled_messages_(0),
-        binding_(this) {}
-  ~CppSideConnection() override {}
-
-  void set_run_loop(base::RunLoop* run_loop) { run_loop_ = run_loop; }
-  base::RunLoop* run_loop() { return run_loop_; }
-
-  void set_js_side(js_to_cpp::JsSide* js_side) { js_side_ = js_side; }
-  js_to_cpp::JsSide* js_side() { return js_side_; }
-
-  void Bind(InterfaceRequest<js_to_cpp::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::EchoArgsListPtr list) override {
-    mishandled_messages_ += 1;
-  }
-
-  void BitFlipResponse(
-      js_to_cpp::EchoArgsListPtr list,
-      js_to_cpp::ForTestingAssociatedPtrInfo not_used) override {
-    mishandled_messages_ += 1;
-  }
-
-  void BackPointerResponse(js_to_cpp::EchoArgsListPtr list) override {
-    mishandled_messages_ += 1;
-  }
-
- protected:
-  base::RunLoop* run_loop_;
-  js_to_cpp::JsSide* js_side_;
-  int mishandled_messages_;
-  mojo::Binding<js_to_cpp::CppSide> binding_;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(CppSideConnection);
-};
-
-// 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;
-    run_loop()->Quit();
-  }
-
-  bool DidSucceed() {
-    return got_message_ && !mishandled_messages_;
-  }
-
- private:
-  bool got_message_;
-  DISALLOW_COPY_AND_ASSIGN(PingCppSideConnection);
-};
-
-// 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::EchoArgsListPtr list) override {
-    const js_to_cpp::EchoArgsPtr& special_arg = list->item;
-    message_count_ += 1;
-    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(std::string("going"), *special_arg->name);
-    CheckSampleEchoArgsList(list->next);
-  }
-
-  void TestFinished() override {
-    termination_seen_ = true;
-    run_loop()->Quit();
-  }
-
-  bool DidSucceed() {
-    return termination_seen_ &&
-        !mishandled_messages_ &&
-        message_count_ == kExpectedMessageCount;
-  }
-
- private:
-  static const int kExpectedMessageCount = 10;
-  int message_count_;
-  bool termination_seen_;
-  DISALLOW_COPY_AND_ASSIGN(EchoCppSideConnection);
-};
-
-// 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::EchoArgsListPtr list,
-      js_to_cpp::ForTestingAssociatedPtrInfo not_used) override {
-    CheckCorruptedEchoArgsList(list);
-  }
-
-  void TestFinished() override {
-    termination_seen_ = true;
-    run_loop()->Quit();
-  }
-
-  bool DidSucceed() {
-    return termination_seen_;
-  }
-
- private:
-  bool termination_seen_;
-  DISALLOW_COPY_AND_ASSIGN(BitFlipCppSideConnection);
-};
-
-// 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::EchoArgsListPtr list) override {
-    CheckCorruptedEchoArgsList(list);
-  }
-
-  void TestFinished() override {
-    termination_seen_ = true;
-    run_loop()->Quit();
-  }
-
-  bool DidSucceed() {
-    return termination_seen_;
-  }
-
- private:
-  bool termination_seen_;
-  DISALLOW_COPY_AND_ASSIGN(BackPointerCppSideConnection);
-};
-
-}  // namespace
-
-class JsToCppTest : public testing::Test {
- public:
-  JsToCppTest() {}
-
-  void RunTest(const std::string& test, CppSideConnection* cpp_side) {
-    cpp_side->set_run_loop(&run_loop_);
-
-    js_to_cpp::JsSidePtr js_side;
-    auto js_side_proxy = MakeRequest(&js_side);
-
-    cpp_side->set_js_side(js_side.get());
-    js_to_cpp::CppSidePtr cpp_side_ptr;
-    cpp_side->Bind(MakeRequest(&cpp_side_ptr));
-
-    js_side->SetCppSide(std::move(cpp_side_ptr));
-
-#ifdef V8_USE_EXTERNAL_STARTUP_DATA
-    gin::V8Initializer::LoadV8Snapshot();
-    gin::V8Initializer::LoadV8Natives();
-#endif
-
-    gin::IsolateHolder::Initialize(gin::IsolateHolder::kStrictMode,
-                                   gin::IsolateHolder::kStableV8Extras,
-                                   gin::ArrayBufferAllocator::SharedInstance());
-    gin::IsolateHolder instance(base::ThreadTaskRunnerHandle::Get());
-    MojoRunnerDelegate delegate;
-    gin::ShellRunner runner(&delegate, instance.isolate());
-    delegate.Start(&runner, js_side_proxy.PassMessagePipe().release().value(),
-                   test);
-
-    run_loop_.Run();
-  }
-
- private:
-  base::ShadowingAtExitManager at_exit_;
-  base::test::ScopedTaskEnvironment scoped_task_environment_;
-  base::RunLoop run_loop_;
-
-  DISALLOW_COPY_AND_ASSIGN(JsToCppTest);
-};
-
-TEST_F(JsToCppTest, Ping) {
-  PingCppSideConnection cpp_side_connection;
-  RunTest("mojo/edk/js/tests/js_to_cpp_tests", &cpp_side_connection);
-  EXPECT_TRUE(cpp_side_connection.DidSucceed());
-}
-
-TEST_F(JsToCppTest, Echo) {
-  EchoCppSideConnection cpp_side_connection;
-  RunTest("mojo/edk/js/tests/js_to_cpp_tests", &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("mojo/edk/js/tests/js_to_cpp_tests", &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("mojo/edk/js/tests/js_to_cpp_tests", &cpp_side_connection);
-  EXPECT_TRUE(cpp_side_connection.DidSucceed());
-}
-
-}  // namespace js
-}  // namespace edk
-}  // namespace mojo