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// Copyright 2017 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 "third_party/blink/public/common/message_port/string_message_codec.h"
#include "base/strings/utf_string_conversions.h"
#include "base/test/scoped_task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "v8/include/v8.h"
namespace blink {
namespace {
base::string16 DecodeWithV8(const std::vector<uint8_t>& encoded) {
base::test::ScopedTaskEnvironment scoped_task_environment;
base::string16 result;
v8::Isolate::CreateParams params;
params.array_buffer_allocator =
v8::ArrayBuffer::Allocator::NewDefaultAllocator();
v8::Isolate* isolate = v8::Isolate::New(params);
{
v8::HandleScope scope(isolate);
v8::TryCatch try_catch(isolate);
v8::Local<v8::Context> context = v8::Context::New(isolate);
v8::ValueDeserializer deserializer(isolate, encoded.data(), encoded.size());
deserializer.SetSupportsLegacyWireFormat(true);
EXPECT_TRUE(deserializer.ReadHeader(context).ToChecked());
v8::Local<v8::Value> value =
deserializer.ReadValue(context).ToLocalChecked();
v8::Local<v8::String> str = value->ToString(context).ToLocalChecked();
result.resize(str->Length());
str->Write(isolate, reinterpret_cast<uint16_t*>(&result[0]), 0,
result.size());
}
isolate->Dispose();
delete params.array_buffer_allocator;
return result;
}
std::vector<uint8_t> EncodeWithV8(const base::string16& message) {
base::test::ScopedTaskEnvironment scoped_task_environment;
std::vector<uint8_t> result;
v8::Isolate::CreateParams params;
params.array_buffer_allocator =
v8::ArrayBuffer::Allocator::NewDefaultAllocator();
v8::Isolate* isolate = v8::Isolate::New(params);
{
v8::HandleScope scope(isolate);
v8::TryCatch try_catch(isolate);
v8::Local<v8::Context> context = v8::Context::New(isolate);
v8::Local<v8::String> message_as_value =
v8::String::NewFromTwoByte(
isolate, reinterpret_cast<const uint16_t*>(message.data()),
v8::NewStringType::kNormal, message.size())
.ToLocalChecked();
v8::ValueSerializer serializer(isolate);
serializer.WriteHeader();
EXPECT_TRUE(serializer.WriteValue(context, message_as_value).ToChecked());
std::pair<uint8_t*, size_t> buffer = serializer.Release();
result = std::vector<uint8_t>(buffer.first, buffer.first + buffer.second);
free(buffer.first);
}
isolate->Dispose();
delete params.array_buffer_allocator;
return result;
}
TEST(StringMessageCodecTest, SelfTest_ASCII) {
base::string16 message = base::ASCIIToUTF16("hello");
base::string16 decoded;
EXPECT_TRUE(DecodeStringMessage(EncodeStringMessage(message), &decoded));
EXPECT_EQ(message, decoded);
}
TEST(StringMessageCodecTest, SelfTest_NonASCII) {
base::string16 message = base::WideToUTF16(L"hello \u263A");
base::string16 decoded;
EXPECT_TRUE(DecodeStringMessage(EncodeStringMessage(message), &decoded));
EXPECT_EQ(message, decoded);
}
TEST(StringMessageCodecTest, SelfTest_NonASCIILongEnoughToForcePadding) {
base::string16 message(200, 0x263A);
base::string16 decoded;
EXPECT_TRUE(DecodeStringMessage(EncodeStringMessage(message), &decoded));
EXPECT_EQ(message, decoded);
}
TEST(StringMessageCodecTest, SelfToV8Test_ASCII) {
base::string16 message = base::ASCIIToUTF16("hello");
EXPECT_EQ(message, DecodeWithV8(EncodeStringMessage(message)));
}
TEST(StringMessageCodecTest, SelfToV8Test_NonASCII) {
base::string16 message = base::WideToUTF16(L"hello \u263A");
EXPECT_EQ(message, DecodeWithV8(EncodeStringMessage(message)));
}
TEST(StringMessageCodecTest, SelfToV8Test_NonASCIILongEnoughToForcePadding) {
base::string16 message(200, 0x263A);
EXPECT_EQ(message, DecodeWithV8(EncodeStringMessage(message)));
}
TEST(StringMessageCodecTest, V8ToSelfTest_ASCII) {
base::string16 message = base::ASCIIToUTF16("hello");
base::string16 decoded;
EXPECT_TRUE(DecodeStringMessage(EncodeWithV8(message), &decoded));
EXPECT_EQ(message, decoded);
}
TEST(StringMessageCodecTest, V8ToSelfTest_NonASCII) {
base::string16 message = base::WideToUTF16(L"hello \u263A");
base::string16 decoded;
EXPECT_TRUE(DecodeStringMessage(EncodeWithV8(message), &decoded));
EXPECT_EQ(message, decoded);
}
TEST(StringMessageCodecTest, V8ToSelfTest_NonASCIILongEnoughToForcePadding) {
base::string16 message(200, 0x263A);
base::string16 decoded;
EXPECT_TRUE(DecodeStringMessage(EncodeWithV8(message), &decoded));
EXPECT_EQ(message, decoded);
}
} // namespace
} // namespace blink
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