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v8/test/unittests/value-serializer-unittest.cc
jbroman 6f1639ed16 ValueSerializer: Distinguish between 'undefined' and an absent property. 
Dealing with this case requires a wire format change. It is possible that an
element can be absent even in an array where the dense format was chosen
(because the array initially had no holes), if the elements are modified while
they are being serialized. In this case, a new tag for the "hole" is emitted.

The logic to treat undefined in dense arrays as an absent property is restricted
to versions of the wire format that this tag did not exist.

BUG=chromium:686159,chromium:665820

Review-Url: https://codereview.chromium.org/2660093002
Cr-Original-Commit-Position: refs/heads/master@{#42784}
Committed: dc85f4c833
Review-Url: https://codereview.chromium.org/2660093002
Cr-Commit-Position: refs/heads/master@{#42800}
2017-01-31 01:54:26 +00:00

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// Copyright 2016 the V8 project 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 "src/value-serializer.h"
#include <algorithm>
#include <string>
#include "include/v8.h"
#include "src/api.h"
#include "src/base/build_config.h"
#include "src/objects-inl.h"
#include "test/unittests/test-utils.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace v8 {
namespace {
using ::testing::_;
using ::testing::Invoke;
using ::testing::Return;
class ValueSerializerTest : public TestWithIsolate {
protected:
ValueSerializerTest()
: serialization_context_(Context::New(isolate())),
deserialization_context_(Context::New(isolate())) {
// Create a host object type that can be tested through
// serialization/deserialization delegates below.
Local<FunctionTemplate> function_template = v8::FunctionTemplate::New(
isolate(), [](const FunctionCallbackInfo<Value>& args) {
args.Holder()->SetInternalField(0, args[0]);
args.Holder()->SetInternalField(1, args[1]);
});
function_template->InstanceTemplate()->SetInternalFieldCount(2);
function_template->InstanceTemplate()->SetAccessor(
StringFromUtf8("value"),
[](Local<String> property, const PropertyCallbackInfo<Value>& args) {
args.GetReturnValue().Set(args.Holder()->GetInternalField(0));
});
function_template->InstanceTemplate()->SetAccessor(
StringFromUtf8("value2"),
[](Local<String> property, const PropertyCallbackInfo<Value>& args) {
args.GetReturnValue().Set(args.Holder()->GetInternalField(1));
});
for (Local<Context> context :
{serialization_context_, deserialization_context_}) {
context->Global()
->CreateDataProperty(
context, StringFromUtf8("ExampleHostObject"),
function_template->GetFunction(context).ToLocalChecked())
.ToChecked();
}
host_object_constructor_template_ = function_template;
isolate_ = reinterpret_cast<i::Isolate*>(isolate());
}
~ValueSerializerTest() {
// In some cases unhandled scheduled exceptions from current test produce
// that Context::New(isolate()) from next test's constructor returns NULL.
// In order to prevent that, we added destructor which will clear scheduled
// exceptions just for the current test from test case.
if (isolate_->has_scheduled_exception()) {
isolate_->clear_scheduled_exception();
}
}
const Local<Context>& serialization_context() {
return serialization_context_;
}
const Local<Context>& deserialization_context() {
return deserialization_context_;
}
// Overridden in more specific fixtures.
virtual ValueSerializer::Delegate* GetSerializerDelegate() { return nullptr; }
virtual void BeforeEncode(ValueSerializer*) {}
virtual void AfterEncode() {}
virtual ValueDeserializer::Delegate* GetDeserializerDelegate() {
return nullptr;
}
virtual void BeforeDecode(ValueDeserializer*) {}
template <typename InputFunctor, typename OutputFunctor>
void RoundTripTest(const InputFunctor& input_functor,
const OutputFunctor& output_functor) {
EncodeTest(input_functor,
[this, &output_functor](const std::vector<uint8_t>& data) {
DecodeTest(data, output_functor);
});
}
// Variant for the common case where a script is used to build the original
// value.
template <typename OutputFunctor>
void RoundTripTest(const char* source, const OutputFunctor& output_functor) {
RoundTripTest([this, source]() { return EvaluateScriptForInput(source); },
output_functor);
}
// Variant which uses JSON.parse/stringify to check the result.
void RoundTripJSON(const char* source) {
RoundTripTest(
[this, source]() {
return JSON::Parse(serialization_context_, StringFromUtf8(source))
.ToLocalChecked();
},
[this, source](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
EXPECT_EQ(source, Utf8Value(JSON::Stringify(deserialization_context_,
value.As<Object>())
.ToLocalChecked()));
});
}
Maybe<std::vector<uint8_t>> DoEncode(Local<Value> value) {
Local<Context> context = serialization_context();
ValueSerializer serializer(isolate(), GetSerializerDelegate());
BeforeEncode(&serializer);
serializer.WriteHeader();
if (!serializer.WriteValue(context, value).FromMaybe(false)) {
return Nothing<std::vector<uint8_t>>();
}
AfterEncode();
std::pair<uint8_t*, size_t> buffer = serializer.Release();
std::vector<uint8_t> result(buffer.first, buffer.first + buffer.second);
free(buffer.first);
return Just(std::move(result));
}
template <typename InputFunctor, typename EncodedDataFunctor>
void EncodeTest(const InputFunctor& input_functor,
const EncodedDataFunctor& encoded_data_functor) {
Context::Scope scope(serialization_context());
TryCatch try_catch(isolate());
Local<Value> input_value = input_functor();
std::vector<uint8_t> buffer;
ASSERT_TRUE(DoEncode(input_value).To(&buffer));
ASSERT_FALSE(try_catch.HasCaught());
encoded_data_functor(buffer);
}
template <typename InputFunctor, typename MessageFunctor>
void InvalidEncodeTest(const InputFunctor& input_functor,
const MessageFunctor& functor) {
Context::Scope scope(serialization_context());
TryCatch try_catch(isolate());
Local<Value> input_value = input_functor();
ASSERT_TRUE(DoEncode(input_value).IsNothing());
functor(try_catch.Message());
}
template <typename MessageFunctor>
void InvalidEncodeTest(const char* source, const MessageFunctor& functor) {
InvalidEncodeTest(
[this, source]() { return EvaluateScriptForInput(source); }, functor);
}
void InvalidEncodeTest(const char* source) {
InvalidEncodeTest(source, [](Local<Message>) {});
}
template <typename OutputFunctor>
void DecodeTest(const std::vector<uint8_t>& data,
const OutputFunctor& output_functor) {
Local<Context> context = deserialization_context();
Context::Scope scope(context);
TryCatch try_catch(isolate());
ValueDeserializer deserializer(isolate(), &data[0],
static_cast<int>(data.size()),
GetDeserializerDelegate());
deserializer.SetSupportsLegacyWireFormat(true);
BeforeDecode(&deserializer);
ASSERT_TRUE(deserializer.ReadHeader(context).FromMaybe(false));
Local<Value> result;
ASSERT_TRUE(deserializer.ReadValue(context).ToLocal(&result));
ASSERT_FALSE(result.IsEmpty());
ASSERT_FALSE(try_catch.HasCaught());
ASSERT_TRUE(
context->Global()
->CreateDataProperty(context, StringFromUtf8("result"), result)
.FromMaybe(false));
output_functor(result);
ASSERT_FALSE(try_catch.HasCaught());
}
template <typename OutputFunctor>
void DecodeTestForVersion0(const std::vector<uint8_t>& data,
const OutputFunctor& output_functor) {
Local<Context> context = deserialization_context();
Context::Scope scope(context);
TryCatch try_catch(isolate());
ValueDeserializer deserializer(isolate(), &data[0],
static_cast<int>(data.size()),
GetDeserializerDelegate());
deserializer.SetSupportsLegacyWireFormat(true);
BeforeDecode(&deserializer);
ASSERT_TRUE(deserializer.ReadHeader(context).FromMaybe(false));
ASSERT_EQ(0u, deserializer.GetWireFormatVersion());
Local<Value> result;
ASSERT_TRUE(deserializer.ReadValue(context).ToLocal(&result));
ASSERT_FALSE(result.IsEmpty());
ASSERT_FALSE(try_catch.HasCaught());
ASSERT_TRUE(
context->Global()
->CreateDataProperty(context, StringFromUtf8("result"), result)
.FromMaybe(false));
output_functor(result);
ASSERT_FALSE(try_catch.HasCaught());
}
void InvalidDecodeTest(const std::vector<uint8_t>& data) {
Local<Context> context = deserialization_context();
Context::Scope scope(context);
TryCatch try_catch(isolate());
ValueDeserializer deserializer(isolate(), &data[0],
static_cast<int>(data.size()),
GetDeserializerDelegate());
deserializer.SetSupportsLegacyWireFormat(true);
BeforeDecode(&deserializer);
Maybe<bool> header_result = deserializer.ReadHeader(context);
if (header_result.IsNothing()) {
EXPECT_TRUE(try_catch.HasCaught());
return;
}
ASSERT_TRUE(header_result.ToChecked());
ASSERT_TRUE(deserializer.ReadValue(context).IsEmpty());
EXPECT_TRUE(try_catch.HasCaught());
}
Local<Value> EvaluateScriptForInput(const char* utf8_source) {
Local<String> source = StringFromUtf8(utf8_source);
Local<Script> script =
Script::Compile(serialization_context_, source).ToLocalChecked();
return script->Run(serialization_context_).ToLocalChecked();
}
bool EvaluateScriptForResultBool(const char* utf8_source) {
Local<String> source = StringFromUtf8(utf8_source);
Local<Script> script =
Script::Compile(deserialization_context_, source).ToLocalChecked();
Local<Value> value = script->Run(deserialization_context_).ToLocalChecked();
return value->BooleanValue(deserialization_context_).FromJust();
}
Local<String> StringFromUtf8(const char* source) {
return String::NewFromUtf8(isolate(), source, NewStringType::kNormal)
.ToLocalChecked();
}
static std::string Utf8Value(Local<Value> value) {
String::Utf8Value utf8(value);
return std::string(*utf8, utf8.length());
}
Local<Object> NewHostObject(Local<Context> context, int argc,
Local<Value> argv[]) {
return host_object_constructor_template_->GetFunction(context)
.ToLocalChecked()
->NewInstance(context, argc, argv)
.ToLocalChecked();
}
private:
Local<Context> serialization_context_;
Local<Context> deserialization_context_;
Local<FunctionTemplate> host_object_constructor_template_;
i::Isolate* isolate_;
DISALLOW_COPY_AND_ASSIGN(ValueSerializerTest);
};
TEST_F(ValueSerializerTest, DecodeInvalid) {
// Version tag but no content.
InvalidDecodeTest({0xff});
// Version too large.
InvalidDecodeTest({0xff, 0x7f, 0x5f});
// Nonsense tag.
InvalidDecodeTest({0xff, 0x09, 0xdd});
}
TEST_F(ValueSerializerTest, RoundTripOddball) {
RoundTripTest([this]() { return Undefined(isolate()); },
[](Local<Value> value) { EXPECT_TRUE(value->IsUndefined()); });
RoundTripTest([this]() { return True(isolate()); },
[](Local<Value> value) { EXPECT_TRUE(value->IsTrue()); });
RoundTripTest([this]() { return False(isolate()); },
[](Local<Value> value) { EXPECT_TRUE(value->IsFalse()); });
RoundTripTest([this]() { return Null(isolate()); },
[](Local<Value> value) { EXPECT_TRUE(value->IsNull()); });
}
TEST_F(ValueSerializerTest, DecodeOddball) {
// What this code is expected to generate.
DecodeTest({0xff, 0x09, 0x5f},
[](Local<Value> value) { EXPECT_TRUE(value->IsUndefined()); });
DecodeTest({0xff, 0x09, 0x54},
[](Local<Value> value) { EXPECT_TRUE(value->IsTrue()); });
DecodeTest({0xff, 0x09, 0x46},
[](Local<Value> value) { EXPECT_TRUE(value->IsFalse()); });
DecodeTest({0xff, 0x09, 0x30},
[](Local<Value> value) { EXPECT_TRUE(value->IsNull()); });
// What v9 of the Blink code generates.
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x5f, 0x00},
[](Local<Value> value) { EXPECT_TRUE(value->IsUndefined()); });
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x54, 0x00},
[](Local<Value> value) { EXPECT_TRUE(value->IsTrue()); });
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x46, 0x00},
[](Local<Value> value) { EXPECT_TRUE(value->IsFalse()); });
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x30, 0x00},
[](Local<Value> value) { EXPECT_TRUE(value->IsNull()); });
// v0 (with no explicit version).
DecodeTest({0x5f, 0x00},
[](Local<Value> value) { EXPECT_TRUE(value->IsUndefined()); });
DecodeTest({0x54, 0x00},
[](Local<Value> value) { EXPECT_TRUE(value->IsTrue()); });
DecodeTest({0x46, 0x00},
[](Local<Value> value) { EXPECT_TRUE(value->IsFalse()); });
DecodeTest({0x30, 0x00},
[](Local<Value> value) { EXPECT_TRUE(value->IsNull()); });
}
TEST_F(ValueSerializerTest, RoundTripNumber) {
RoundTripTest([this]() { return Integer::New(isolate(), 42); },
[](Local<Value> value) {
ASSERT_TRUE(value->IsInt32());
EXPECT_EQ(42, Int32::Cast(*value)->Value());
});
RoundTripTest([this]() { return Integer::New(isolate(), -31337); },
[](Local<Value> value) {
ASSERT_TRUE(value->IsInt32());
EXPECT_EQ(-31337, Int32::Cast(*value)->Value());
});
RoundTripTest(
[this]() {
return Integer::New(isolate(), std::numeric_limits<int32_t>::min());
},
[](Local<Value> value) {
ASSERT_TRUE(value->IsInt32());
EXPECT_EQ(std::numeric_limits<int32_t>::min(),
Int32::Cast(*value)->Value());
});
RoundTripTest([this]() { return Number::New(isolate(), -0.25); },
[](Local<Value> value) {
ASSERT_TRUE(value->IsNumber());
EXPECT_EQ(-0.25, Number::Cast(*value)->Value());
});
RoundTripTest(
[this]() {
return Number::New(isolate(), std::numeric_limits<double>::quiet_NaN());
},
[](Local<Value> value) {
ASSERT_TRUE(value->IsNumber());
EXPECT_TRUE(std::isnan(Number::Cast(*value)->Value()));
});
}
TEST_F(ValueSerializerTest, DecodeNumber) {
// 42 zig-zag encoded (signed)
DecodeTest({0xff, 0x09, 0x49, 0x54},
[](Local<Value> value) {
ASSERT_TRUE(value->IsInt32());
EXPECT_EQ(42, Int32::Cast(*value)->Value());
});
// 42 varint encoded (unsigned)
DecodeTest({0xff, 0x09, 0x55, 0x2a},
[](Local<Value> value) {
ASSERT_TRUE(value->IsInt32());
EXPECT_EQ(42, Int32::Cast(*value)->Value());
});
// 160 zig-zag encoded (signed)
DecodeTest({0xff, 0x09, 0x49, 0xc0, 0x02},
[](Local<Value> value) {
ASSERT_TRUE(value->IsInt32());
ASSERT_EQ(160, Int32::Cast(*value)->Value());
});
// 160 varint encoded (unsigned)
DecodeTest({0xff, 0x09, 0x55, 0xa0, 0x01},
[](Local<Value> value) {
ASSERT_TRUE(value->IsInt32());
ASSERT_EQ(160, Int32::Cast(*value)->Value());
});
#if defined(V8_TARGET_LITTLE_ENDIAN)
// IEEE 754 doubles, little-endian byte order
DecodeTest({0xff, 0x09, 0x4e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd0, 0xbf},
[](Local<Value> value) {
ASSERT_TRUE(value->IsNumber());
EXPECT_EQ(-0.25, Number::Cast(*value)->Value());
});
// quiet NaN
DecodeTest({0xff, 0x09, 0x4e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x7f},
[](Local<Value> value) {
ASSERT_TRUE(value->IsNumber());
EXPECT_TRUE(std::isnan(Number::Cast(*value)->Value()));
});
// signaling NaN
DecodeTest({0xff, 0x09, 0x4e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf4, 0x7f},
[](Local<Value> value) {
ASSERT_TRUE(value->IsNumber());
EXPECT_TRUE(std::isnan(Number::Cast(*value)->Value()));
});
#endif
// TODO(jbroman): Equivalent test for big-endian machines.
}
// String constants (in UTF-8) used for string encoding tests.
static const char kHelloString[] = "Hello";
static const char kQuebecString[] = "\x51\x75\xC3\xA9\x62\x65\x63";
static const char kEmojiString[] = "\xF0\x9F\x91\x8A";
TEST_F(ValueSerializerTest, RoundTripString) {
RoundTripTest([this]() { return String::Empty(isolate()); },
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(0, String::Cast(*value)->Length());
});
// Inside ASCII.
RoundTripTest([this]() { return StringFromUtf8(kHelloString); },
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(5, String::Cast(*value)->Length());
EXPECT_EQ(kHelloString, Utf8Value(value));
});
// Inside Latin-1 (i.e. one-byte string), but not ASCII.
RoundTripTest([this]() { return StringFromUtf8(kQuebecString); },
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(6, String::Cast(*value)->Length());
EXPECT_EQ(kQuebecString, Utf8Value(value));
});
// An emoji (decodes to two 16-bit chars).
RoundTripTest([this]() { return StringFromUtf8(kEmojiString); },
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(2, String::Cast(*value)->Length());
EXPECT_EQ(kEmojiString, Utf8Value(value));
});
}
TEST_F(ValueSerializerTest, DecodeString) {
// Decoding the strings above from UTF-8.
DecodeTest({0xff, 0x09, 0x53, 0x00},
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(0, String::Cast(*value)->Length());
});
DecodeTest({0xff, 0x09, 0x53, 0x05, 'H', 'e', 'l', 'l', 'o'},
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(5, String::Cast(*value)->Length());
EXPECT_EQ(kHelloString, Utf8Value(value));
});
DecodeTest({0xff, 0x09, 0x53, 0x07, 'Q', 'u', 0xc3, 0xa9, 'b', 'e', 'c'},
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(6, String::Cast(*value)->Length());
EXPECT_EQ(kQuebecString, Utf8Value(value));
});
DecodeTest({0xff, 0x09, 0x53, 0x04, 0xf0, 0x9f, 0x91, 0x8a},
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(2, String::Cast(*value)->Length());
EXPECT_EQ(kEmojiString, Utf8Value(value));
});
// And from Latin-1 (for the ones that fit).
DecodeTest({0xff, 0x0a, 0x22, 0x00}, [](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(0, String::Cast(*value)->Length());
});
DecodeTest({0xff, 0x0a, 0x22, 0x05, 'H', 'e', 'l', 'l', 'o'},
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(5, String::Cast(*value)->Length());
EXPECT_EQ(kHelloString, Utf8Value(value));
});
DecodeTest({0xff, 0x0a, 0x22, 0x06, 'Q', 'u', 0xe9, 'b', 'e', 'c'},
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(6, String::Cast(*value)->Length());
EXPECT_EQ(kQuebecString, Utf8Value(value));
});
// And from two-byte strings (endianness dependent).
#if defined(V8_TARGET_LITTLE_ENDIAN)
DecodeTest({0xff, 0x09, 0x63, 0x00},
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(0, String::Cast(*value)->Length());
});
DecodeTest({0xff, 0x09, 0x63, 0x0a, 'H', '\0', 'e', '\0', 'l', '\0', 'l',
'\0', 'o', '\0'},
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(5, String::Cast(*value)->Length());
EXPECT_EQ(kHelloString, Utf8Value(value));
});
DecodeTest({0xff, 0x09, 0x63, 0x0c, 'Q', '\0', 'u', '\0', 0xe9, '\0', 'b',
'\0', 'e', '\0', 'c', '\0'},
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(6, String::Cast(*value)->Length());
EXPECT_EQ(kQuebecString, Utf8Value(value));
});
DecodeTest({0xff, 0x09, 0x63, 0x04, 0x3d, 0xd8, 0x4a, 0xdc},
[](Local<Value> value) {
ASSERT_TRUE(value->IsString());
EXPECT_EQ(2, String::Cast(*value)->Length());
EXPECT_EQ(kEmojiString, Utf8Value(value));
});
#endif
// TODO(jbroman): The same for big-endian systems.
}
TEST_F(ValueSerializerTest, DecodeInvalidString) {
// UTF-8 string with too few bytes available.
InvalidDecodeTest({0xff, 0x09, 0x53, 0x10, 'v', '8'});
// One-byte string with too few bytes available.
InvalidDecodeTest({0xff, 0x0a, 0x22, 0x10, 'v', '8'});
#if defined(V8_TARGET_LITTLE_ENDIAN)
// Two-byte string with too few bytes available.
InvalidDecodeTest({0xff, 0x09, 0x63, 0x10, 'v', '\0', '8', '\0'});
// Two-byte string with an odd byte length.
InvalidDecodeTest({0xff, 0x09, 0x63, 0x03, 'v', '\0', '8'});
#endif
// TODO(jbroman): The same for big-endian systems.
}
TEST_F(ValueSerializerTest, EncodeTwoByteStringUsesPadding) {
// As long as the output has a version that Blink expects to be able to read,
// we must respect its alignment requirements. It requires that two-byte
// characters be aligned.
EncodeTest(
[this]() {
// We need a string whose length will take two bytes to encode, so that
// a padding byte is needed to keep the characters aligned. The string
// must also have a two-byte character, so that it gets the two-byte
// encoding.
std::string string(200, ' ');
string += kEmojiString;
return StringFromUtf8(string.c_str());
},
[](const std::vector<uint8_t>& data) {
// This is a sufficient but not necessary condition. This test assumes
// that the wire format version is one byte long, but is flexible to
// what that value may be.
const uint8_t expected_prefix[] = {0x00, 0x63, 0x94, 0x03};
ASSERT_GT(data.size(), sizeof(expected_prefix) + 2);
EXPECT_EQ(0xff, data[0]);
EXPECT_GE(data[1], 0x09);
EXPECT_LE(data[1], 0x7f);
EXPECT_TRUE(std::equal(std::begin(expected_prefix),
std::end(expected_prefix), data.begin() + 2));
});
}
TEST_F(ValueSerializerTest, RoundTripDictionaryObject) {
// Empty object.
RoundTripTest("({})", [this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Object.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).length === 0"));
});
// String key.
RoundTripTest("({ a: 42 })", [this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
EXPECT_TRUE(EvaluateScriptForResultBool("result.hasOwnProperty('a')"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === 42"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).length === 1"));
});
// Integer key (treated as a string, but may be encoded differently).
RoundTripTest("({ 42: 'a' })", [this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
EXPECT_TRUE(EvaluateScriptForResultBool("result.hasOwnProperty('42')"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[42] === 'a'"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).length === 1"));
});
// Key order must be preserved.
RoundTripTest("({ x: 1, y: 2, a: 3 })", [this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).toString() === 'x,y,a'"));
});
// A harder case of enumeration order.
// Indexes first, in order (but not 2^32 - 1, which is not an index), then the
// remaining (string) keys, in the order they were defined.
RoundTripTest(
"({ a: 2, 0xFFFFFFFF: 1, 0xFFFFFFFE: 3, 1: 0 })",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).toString() === "
"'1,4294967294,a,4294967295'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === 2"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[0xFFFFFFFF] === 1"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[0xFFFFFFFE] === 3"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[1] === 0"));
});
// This detects a fairly subtle case: the object itself must be in the map
// before its properties are deserialized, so that references to it can be
// resolved.
RoundTripTest(
"(() => { var y = {}; y.self = y; return y; })()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
EXPECT_TRUE(EvaluateScriptForResultBool("result === result.self"));
});
}
TEST_F(ValueSerializerTest, DecodeDictionaryObject) {
// Empty object.
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x6f, 0x7b, 0x00, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Object.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).length === 0"));
});
// String key.
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6f, 0x3f, 0x01, 0x53, 0x01, 0x61, 0x3f, 0x01,
0x49, 0x54, 0x7b, 0x01},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
EXPECT_TRUE(EvaluateScriptForResultBool("result.hasOwnProperty('a')"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === 42"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).length === 1"));
});
// Integer key (treated as a string, but may be encoded differently).
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6f, 0x3f, 0x01, 0x49, 0x54, 0x3f, 0x01, 0x53,
0x01, 0x61, 0x7b, 0x01},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
EXPECT_TRUE(EvaluateScriptForResultBool("result.hasOwnProperty('42')"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[42] === 'a'"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).length === 1"));
});
// Key order must be preserved.
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6f, 0x3f, 0x01, 0x53, 0x01, 0x78, 0x3f, 0x01,
0x49, 0x02, 0x3f, 0x01, 0x53, 0x01, 0x79, 0x3f, 0x01, 0x49, 0x04, 0x3f,
0x01, 0x53, 0x01, 0x61, 0x3f, 0x01, 0x49, 0x06, 0x7b, 0x03},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).toString() === 'x,y,a'"));
});
// A harder case of enumeration order.
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6f, 0x3f, 0x01, 0x49, 0x02, 0x3f, 0x01,
0x49, 0x00, 0x3f, 0x01, 0x55, 0xfe, 0xff, 0xff, 0xff, 0x0f, 0x3f,
0x01, 0x49, 0x06, 0x3f, 0x01, 0x53, 0x01, 0x61, 0x3f, 0x01, 0x49,
0x04, 0x3f, 0x01, 0x53, 0x0a, 0x34, 0x32, 0x39, 0x34, 0x39, 0x36,
0x37, 0x32, 0x39, 0x35, 0x3f, 0x01, 0x49, 0x02, 0x7b, 0x04},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).toString() === "
"'1,4294967294,a,4294967295'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === 2"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[0xFFFFFFFF] === 1"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[0xFFFFFFFE] === 3"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[1] === 0"));
});
// This detects a fairly subtle case: the object itself must be in the map
// before its properties are deserialized, so that references to it can be
// resolved.
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6f, 0x3f, 0x01, 0x53, 0x04, 0x73,
0x65, 0x6c, 0x66, 0x3f, 0x01, 0x5e, 0x00, 0x7b, 0x01, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
EXPECT_TRUE(EvaluateScriptForResultBool("result === result.self"));
});
}
TEST_F(ValueSerializerTest, RoundTripOnlyOwnEnumerableStringKeys) {
// Only "own" properties should be serialized, not ones on the prototype.
RoundTripTest("(() => { var x = {}; x.__proto__ = {a: 4}; return x; })()",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("!('a' in result)"));
});
// Only enumerable properties should be serialized.
RoundTripTest(
"(() => {"
" var x = {};"
" Object.defineProperty(x, 'a', {value: 1, enumerable: false});"
" return x;"
"})()",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("!('a' in result)"));
});
// Symbol keys should not be serialized.
RoundTripTest("({ [Symbol()]: 4 })", [this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertySymbols(result).length === 0"));
});
}
TEST_F(ValueSerializerTest, RoundTripTrickyGetters) {
// Keys are enumerated before any setters are called, but if there is no own
// property when the value is to be read, then it should not be serialized.
RoundTripTest("({ get a() { delete this.b; return 1; }, b: 2 })",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("!('b' in result)"));
});
// Keys added after the property enumeration should not be serialized.
RoundTripTest("({ get a() { this.b = 3; }})", [this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("!('b' in result)"));
});
// But if you remove a key and add it back, that's fine. But it will appear in
// the original place in enumeration order.
RoundTripTest(
"({ get a() { delete this.b; this.b = 4; }, b: 2, c: 3 })",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).toString() === 'a,b,c'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.b === 4"));
});
// Similarly, it only matters if a property was enumerable when the
// enumeration happened.
RoundTripTest(
"({ get a() {"
" Object.defineProperty(this, 'b', {value: 2, enumerable: false});"
"}, b: 1})",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.b === 2"));
});
RoundTripTest(
"(() => {"
" var x = {"
" get a() {"
" Object.defineProperty(this, 'b', {value: 2, enumerable: true});"
" }"
" };"
" Object.defineProperty(x, 'b',"
" {value: 1, enumerable: false, configurable: true});"
" return x;"
"})()",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("!('b' in result)"));
});
// The property also should not be read if it can only be found on the
// prototype chain (but not as an own property) after enumeration.
RoundTripTest(
"(() => {"
" var x = { get a() { delete this.b; }, b: 1 };"
" x.__proto__ = { b: 0 };"
" return x;"
"})()",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("!('b' in result)"));
});
// If an exception is thrown by script, encoding must fail and the exception
// must be thrown.
InvalidEncodeTest("({ get a() { throw new Error('sentinel'); } })",
[](Local<Message> message) {
ASSERT_FALSE(message.IsEmpty());
EXPECT_NE(std::string::npos,
Utf8Value(message->Get()).find("sentinel"));
});
}
TEST_F(ValueSerializerTest, RoundTripDictionaryObjectForTransitions) {
// A case which should run on the fast path, and should reach all of the
// different cases:
// 1. no known transition (first time creating this kind of object)
// 2. expected transitions match to end
// 3. transition partially matches, but falls back due to new property 'w'
// 4. transition to 'z' is now a full transition (needs to be looked up)
// 5. same for 'w'
// 6. new property after complex transition succeeded
// 7. new property after complex transition failed (due to new property)
RoundTripJSON(
"[{\"x\":1,\"y\":2,\"z\":3}"
",{\"x\":4,\"y\":5,\"z\":6}"
",{\"x\":5,\"y\":6,\"w\":7}"
",{\"x\":6,\"y\":7,\"z\":8}"
",{\"x\":0,\"y\":0,\"w\":0}"
",{\"x\":3,\"y\":1,\"w\":4,\"z\":1}"
",{\"x\":5,\"y\":9,\"k\":2,\"z\":6}]");
// A simpler case that uses two-byte strings.
RoundTripJSON(
"[{\"\xF0\x9F\x91\x8A\":1,\"\xF0\x9F\x91\x8B\":2}"
",{\"\xF0\x9F\x91\x8A\":3,\"\xF0\x9F\x91\x8C\":4}"
",{\"\xF0\x9F\x91\x8A\":5,\"\xF0\x9F\x91\x9B\":6}]");
}
TEST_F(ValueSerializerTest, DecodeDictionaryObjectVersion0) {
// Empty object.
DecodeTestForVersion0(
{0x7b, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Object.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).length === 0"));
});
// String key.
DecodeTestForVersion0(
{0x53, 0x01, 0x61, 0x49, 0x54, 0x7b, 0x01, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Object.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.hasOwnProperty('a')"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === 42"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).length === 1"));
});
// Integer key (treated as a string, but may be encoded differently).
DecodeTestForVersion0(
{0x49, 0x54, 0x53, 0x01, 0x61, 0x7b, 0x01, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
EXPECT_TRUE(EvaluateScriptForResultBool("result.hasOwnProperty('42')"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[42] === 'a'"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).length === 1"));
});
// Key order must be preserved.
DecodeTestForVersion0(
{0x53, 0x01, 0x78, 0x49, 0x02, 0x53, 0x01, 0x79, 0x49, 0x04, 0x53, 0x01,
0x61, 0x49, 0x06, 0x7b, 0x03, 0x00},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).toString() === 'x,y,a'"));
});
// A property and an element.
DecodeTestForVersion0(
{0x49, 0x54, 0x53, 0x01, 0x61, 0x53, 0x01, 0x61, 0x49, 0x54, 0x7b, 0x02},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getOwnPropertyNames(result).toString() === '42,a'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[42] === 'a'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === 42"));
});
}
TEST_F(ValueSerializerTest, RoundTripArray) {
// A simple array of integers.
RoundTripTest("[1, 2, 3, 4, 5]", [this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
EXPECT_EQ(5u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Array.prototype"));
EXPECT_TRUE(
EvaluateScriptForResultBool("result.toString() === '1,2,3,4,5'"));
});
// A long (sparse) array.
RoundTripTest(
"(() => { var x = new Array(1000); x[500] = 42; return x; })()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
EXPECT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[500] === 42"));
});
// Duplicate reference.
RoundTripTest(
"(() => { var y = {}; return [y, y]; })()", [this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(2u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[0] === result[1]"));
});
// Duplicate reference in a sparse array.
RoundTripTest(
"(() => { var x = new Array(1000); x[1] = x[500] = {}; return x; })()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(
EvaluateScriptForResultBool("typeof result[1] === 'object'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[1] === result[500]"));
});
// Self reference.
RoundTripTest(
"(() => { var y = []; y[0] = y; return y; })()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[0] === result"));
});
// Self reference in a sparse array.
RoundTripTest(
"(() => { var y = new Array(1000); y[519] = y; return y; })()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[519] === result"));
});
// Array with additional properties.
RoundTripTest(
"(() => { var y = [1, 2]; y.foo = 'bar'; return y; })()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(2u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result.toString() === '1,2'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.foo === 'bar'"));
});
// Sparse array with additional properties.
RoundTripTest(
"(() => { var y = new Array(1000); y.foo = 'bar'; return y; })()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.toString() === ','.repeat(999)"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.foo === 'bar'"));
});
// The distinction between holes and undefined elements must be maintained.
RoundTripTest("[,undefined]", [this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(2u, Array::Cast(*value)->Length());
EXPECT_TRUE(
EvaluateScriptForResultBool("typeof result[0] === 'undefined'"));
EXPECT_TRUE(
EvaluateScriptForResultBool("typeof result[1] === 'undefined'"));
EXPECT_TRUE(EvaluateScriptForResultBool("!result.hasOwnProperty(0)"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.hasOwnProperty(1)"));
});
}
TEST_F(ValueSerializerTest, DecodeArray) {
// A simple array of integers.
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x41, 0x05, 0x3f, 0x01, 0x49, 0x02,
0x3f, 0x01, 0x49, 0x04, 0x3f, 0x01, 0x49, 0x06, 0x3f, 0x01,
0x49, 0x08, 0x3f, 0x01, 0x49, 0x0a, 0x24, 0x00, 0x05, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
EXPECT_EQ(5u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Array.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.toString() === '1,2,3,4,5'"));
});
// A long (sparse) array.
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x61, 0xe8, 0x07, 0x3f, 0x01, 0x49,
0xe8, 0x07, 0x3f, 0x01, 0x49, 0x54, 0x40, 0x01, 0xe8, 0x07},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
EXPECT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[500] === 42"));
});
// Duplicate reference.
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x41, 0x02, 0x3f, 0x01, 0x6f, 0x7b, 0x00, 0x3f,
0x02, 0x5e, 0x01, 0x24, 0x00, 0x02},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(2u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[0] === result[1]"));
});
// Duplicate reference in a sparse array.
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x61, 0xe8, 0x07, 0x3f, 0x01, 0x49,
0x02, 0x3f, 0x01, 0x6f, 0x7b, 0x00, 0x3f, 0x02, 0x49, 0xe8,
0x07, 0x3f, 0x02, 0x5e, 0x01, 0x40, 0x02, 0xe8, 0x07, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(
EvaluateScriptForResultBool("typeof result[1] === 'object'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[1] === result[500]"));
});
// Self reference.
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x41, 0x01, 0x3f, 0x01, 0x5e, 0x00, 0x24,
0x00, 0x01, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[0] === result"));
});
// Self reference in a sparse array.
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x61, 0xe8, 0x07, 0x3f, 0x01, 0x49,
0x8e, 0x08, 0x3f, 0x01, 0x5e, 0x00, 0x40, 0x01, 0xe8, 0x07},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[519] === result"));
});
// Array with additional properties.
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x41, 0x02, 0x3f, 0x01, 0x49, 0x02, 0x3f,
0x01, 0x49, 0x04, 0x3f, 0x01, 0x53, 0x03, 0x66, 0x6f, 0x6f, 0x3f,
0x01, 0x53, 0x03, 0x62, 0x61, 0x72, 0x24, 0x01, 0x02, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(2u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result.toString() === '1,2'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.foo === 'bar'"));
});
// Sparse array with additional properties.
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x61, 0xe8, 0x07, 0x3f, 0x01,
0x53, 0x03, 0x66, 0x6f, 0x6f, 0x3f, 0x01, 0x53, 0x03,
0x62, 0x61, 0x72, 0x40, 0x01, 0xe8, 0x07, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.toString() === ','.repeat(999)"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.foo === 'bar'"));
});
// The distinction between holes and undefined elements must be maintained.
// Note that since the previous output from Chrome fails this test, an
// encoding using the sparse format was constructed instead.
DecodeTest(
{0xff, 0x09, 0x61, 0x02, 0x49, 0x02, 0x5f, 0x40, 0x01, 0x02},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(2u, Array::Cast(*value)->Length());
EXPECT_TRUE(
EvaluateScriptForResultBool("typeof result[0] === 'undefined'"));
EXPECT_TRUE(
EvaluateScriptForResultBool("typeof result[1] === 'undefined'"));
EXPECT_TRUE(EvaluateScriptForResultBool("!result.hasOwnProperty(0)"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.hasOwnProperty(1)"));
});
}
TEST_F(ValueSerializerTest, DecodeInvalidOverLargeArray) {
// So large it couldn't exist in the V8 heap, and its size couldn't fit in a
// SMI on 32-bit systems (2^30).
InvalidDecodeTest({0xff, 0x09, 0x41, 0x80, 0x80, 0x80, 0x80, 0x04});
// Not so large, but there isn't enough data left in the buffer.
InvalidDecodeTest({0xff, 0x09, 0x41, 0x01});
}
TEST_F(ValueSerializerTest, RoundTripArrayWithNonEnumerableElement) {
// Even though this array looks like [1,5,3], the 5 should be missing from the
// perspective of structured clone, which only clones properties that were
// enumerable.
RoundTripTest(
"(() => {"
" var x = [1,2,3];"
" Object.defineProperty(x, '1', {enumerable:false, value:5});"
" return x;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(3u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("!result.hasOwnProperty('1')"));
});
}
TEST_F(ValueSerializerTest, RoundTripArrayWithTrickyGetters) {
// If an element is deleted before it is serialized, then it's deleted.
RoundTripTest(
"(() => {"
" var x = [{ get a() { delete x[1]; }}, 42];"
" return x;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(2u, Array::Cast(*value)->Length());
EXPECT_TRUE(
EvaluateScriptForResultBool("typeof result[1] === 'undefined'"));
EXPECT_TRUE(EvaluateScriptForResultBool("!result.hasOwnProperty(1)"));
});
// Same for sparse arrays.
RoundTripTest(
"(() => {"
" var x = [{ get a() { delete x[1]; }}, 42];"
" x.length = 1000;"
" return x;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(
EvaluateScriptForResultBool("typeof result[1] === 'undefined'"));
EXPECT_TRUE(EvaluateScriptForResultBool("!result.hasOwnProperty(1)"));
});
// If the length is changed, then the resulting array still has the original
// length, but elements that were not yet serialized are gone.
RoundTripTest(
"(() => {"
" var x = [1, { get a() { x.length = 0; }}, 3, 4];"
" return x;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(4u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[0] === 1"));
EXPECT_TRUE(EvaluateScriptForResultBool("!result.hasOwnProperty(2)"));
});
// The same is true if the length is shortened, but there are still items
// remaining.
RoundTripTest(
"(() => {"
" var x = [1, { get a() { x.length = 3; }}, 3, 4];"
" return x;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(4u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[2] === 3"));
EXPECT_TRUE(EvaluateScriptForResultBool("!result.hasOwnProperty(3)"));
});
// Same for sparse arrays.
RoundTripTest(
"(() => {"
" var x = [1, { get a() { x.length = 0; }}, 3, 4];"
" x.length = 1000;"
" return x;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[0] === 1"));
EXPECT_TRUE(EvaluateScriptForResultBool("!result.hasOwnProperty(2)"));
});
RoundTripTest(
"(() => {"
" var x = [1, { get a() { x.length = 3; }}, 3, 4];"
" x.length = 1000;"
" return x;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[2] === 3"));
EXPECT_TRUE(EvaluateScriptForResultBool("!result.hasOwnProperty(3)"));
});
// If a getter makes a property non-enumerable, it should still be enumerated
// as enumeration happens once before getters are invoked.
RoundTripTest(
"(() => {"
" var x = [{ get a() {"
" Object.defineProperty(x, '1', { value: 3, enumerable: false });"
" }}, 2];"
" return x;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(2u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[1] === 3"));
});
// Same for sparse arrays.
RoundTripTest(
"(() => {"
" var x = [{ get a() {"
" Object.defineProperty(x, '1', { value: 3, enumerable: false });"
" }}, 2];"
" x.length = 1000;"
" return x;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[1] === 3"));
});
// Getters on the array itself must also run.
RoundTripTest(
"(() => {"
" var x = [1, 2, 3];"
" Object.defineProperty(x, '1', { enumerable: true, get: () => 4 });"
" return x;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(3u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[1] === 4"));
});
// Same for sparse arrays.
RoundTripTest(
"(() => {"
" var x = [1, 2, 3];"
" Object.defineProperty(x, '1', { enumerable: true, get: () => 4 });"
" x.length = 1000;"
" return x;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result[1] === 4"));
});
// Even with a getter that deletes things, we don't read from the prototype.
RoundTripTest(
"(() => {"
" var x = [{ get a() { delete x[1]; } }, 2];"
" x.__proto__ = Object.create(Array.prototype, { 1: { value: 6 } });"
" return x;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(2u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("!(1 in result)"));
});
// Same for sparse arrays.
RoundTripTest(
"(() => {"
" var x = [{ get a() { delete x[1]; } }, 2];"
" x.__proto__ = Object.create(Array.prototype, { 1: { value: 6 } });"
" x.length = 1000;"
" return x;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(1000u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("!(1 in result)"));
});
}
TEST_F(ValueSerializerTest, DecodeSparseArrayVersion0) {
// Empty (sparse) array.
DecodeTestForVersion0({0x40, 0x00, 0x00, 0x00},
[](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
ASSERT_EQ(0u, Array::Cast(*value)->Length());
});
// Sparse array with a mixture of elements and properties.
DecodeTestForVersion0(
{0x55, 0x00, 0x53, 0x01, 'a', 0x55, 0x02, 0x55, 0x05, 0x53,
0x03, 'f', 'o', 'o', 0x53, 0x03, 'b', 'a', 'r', 0x53,
0x03, 'b', 'a', 'z', 0x49, 0x0b, 0x40, 0x04, 0x03, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
EXPECT_EQ(3u, Array::Cast(*value)->Length());
EXPECT_TRUE(
EvaluateScriptForResultBool("result.toString() === 'a,,5'"));
EXPECT_TRUE(EvaluateScriptForResultBool("!(1 in result)"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.foo === 'bar'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.baz === -6"));
});
// Sparse array in a sparse array (sanity check of nesting).
DecodeTestForVersion0(
{0x55, 0x01, 0x55, 0x01, 0x54, 0x40, 0x01, 0x02, 0x40, 0x01, 0x02, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
EXPECT_EQ(2u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("!(0 in result)"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[1] instanceof Array"));
EXPECT_TRUE(EvaluateScriptForResultBool("!(0 in result[1])"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[1][1] === true"));
});
}
TEST_F(ValueSerializerTest, RoundTripDenseArrayContainingUndefined) {
// In previous serialization versions, this would be interpreted as an absent
// property.
RoundTripTest("[undefined]", [this](Local<Value> value) {
ASSERT_TRUE(value->IsArray());
EXPECT_EQ(1u, Array::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool("result.hasOwnProperty(0)"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[0] === undefined"));
});
}
TEST_F(ValueSerializerTest, DecodeDenseArrayContainingUndefined) {
// In previous versions, "undefined" in a dense array signified absence of the
// element (for compatibility). In new versions, it has a separate encoding.
DecodeTest({0xff, 0x09, 0x41, 0x01, 0x5f, 0x24, 0x00, 0x01},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("!(0 in result)"));
});
DecodeTest(
{0xff, 0x0b, 0x41, 0x01, 0x5f, 0x24, 0x00, 0x01},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("0 in result"));
EXPECT_TRUE(EvaluateScriptForResultBool("result[0] === undefined"));
});
DecodeTest({0xff, 0x0b, 0x41, 0x01, 0x2d, 0x24, 0x00, 0x01},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("!(0 in result)"));
});
}
TEST_F(ValueSerializerTest, RoundTripDate) {
RoundTripTest("new Date(1e6)", [](Local<Value> value) {
ASSERT_TRUE(value->IsDate());
EXPECT_EQ(1e6, Date::Cast(*value)->ValueOf());
EXPECT_TRUE("Object.getPrototypeOf(result) === Date.prototype");
});
RoundTripTest("new Date(Date.UTC(1867, 6, 1))", [](Local<Value> value) {
ASSERT_TRUE(value->IsDate());
EXPECT_TRUE("result.toISOString() === '1867-07-01T00:00:00.000Z'");
});
RoundTripTest("new Date(NaN)", [](Local<Value> value) {
ASSERT_TRUE(value->IsDate());
EXPECT_TRUE(std::isnan(Date::Cast(*value)->ValueOf()));
});
RoundTripTest(
"({ a: new Date(), get b() { return this.a; } })",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.a instanceof Date"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
});
}
TEST_F(ValueSerializerTest, DecodeDate) {
#if defined(V8_TARGET_LITTLE_ENDIAN)
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x44, 0x00, 0x00, 0x00, 0x00, 0x80, 0x84,
0x2e, 0x41, 0x00},
[](Local<Value> value) {
ASSERT_TRUE(value->IsDate());
EXPECT_EQ(1e6, Date::Cast(*value)->ValueOf());
EXPECT_TRUE("Object.getPrototypeOf(result) === Date.prototype");
});
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x44, 0x00, 0x00, 0x20, 0x45, 0x27, 0x89, 0x87,
0xc2, 0x00},
[](Local<Value> value) {
ASSERT_TRUE(value->IsDate());
EXPECT_TRUE("result.toISOString() === '1867-07-01T00:00:00.000Z'");
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xf8, 0x7f, 0x00},
[](Local<Value> value) {
ASSERT_TRUE(value->IsDate());
EXPECT_TRUE(std::isnan(Date::Cast(*value)->ValueOf()));
});
#else
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x44, 0x41, 0x2e, 0x84, 0x80, 0x00, 0x00,
0x00, 0x00, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsDate());
EXPECT_EQ(1e6, Date::Cast(*value)->ValueOf());
EXPECT_TRUE("Object.getPrototypeOf(result) === Date.prototype");
});
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x44, 0xc2, 0x87, 0x89, 0x27, 0x45, 0x20, 0x00,
0x00, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsDate());
EXPECT_TRUE("result.toISOString() === '1867-07-01T00:00:00.000Z'");
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x44, 0x7f, 0xf8, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsDate());
EXPECT_TRUE(std::isnan(Date::Cast(*value)->ValueOf()));
});
#endif
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6f, 0x3f, 0x01, 0x53, 0x01, 0x61, 0x3f,
0x01, 0x44, 0x00, 0x20, 0x39, 0x50, 0x37, 0x6a, 0x75, 0x42, 0x3f,
0x02, 0x53, 0x01, 0x62, 0x3f, 0x02, 0x5e, 0x01, 0x7b, 0x02},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.a instanceof Date"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
});
}
TEST_F(ValueSerializerTest, RoundTripValueObjects) {
RoundTripTest("new Boolean(true)", [this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Boolean.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.valueOf() === true"));
});
RoundTripTest("new Boolean(false)", [this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Boolean.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.valueOf() === false"));
});
RoundTripTest(
"({ a: new Boolean(true), get b() { return this.a; }})",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.a instanceof Boolean"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
});
RoundTripTest("new Number(-42)", [this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Number.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.valueOf() === -42"));
});
RoundTripTest("new Number(NaN)", [this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Number.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("Number.isNaN(result.valueOf())"));
});
RoundTripTest(
"({ a: new Number(6), get b() { return this.a; }})",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.a instanceof Number"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
});
RoundTripTest("new String('Qu\\xe9bec')", [this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === String.prototype"));
EXPECT_TRUE(
EvaluateScriptForResultBool("result.valueOf() === 'Qu\\xe9bec'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.length === 6"));
});
RoundTripTest("new String('\\ud83d\\udc4a')", [this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === String.prototype"));
EXPECT_TRUE(
EvaluateScriptForResultBool("result.valueOf() === '\\ud83d\\udc4a'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.length === 2"));
});
RoundTripTest(
"({ a: new String(), get b() { return this.a; }})",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.a instanceof String"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
});
}
TEST_F(ValueSerializerTest, RejectsOtherValueObjects) {
// This is a roundabout way of getting an instance of Symbol.
InvalidEncodeTest("Object.valueOf.apply(Symbol())");
}
TEST_F(ValueSerializerTest, DecodeValueObjects) {
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x79, 0x00},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Boolean.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.valueOf() === true"));
});
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x78, 0x00},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Boolean.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.valueOf() === false"));
});
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6f, 0x3f, 0x01, 0x53, 0x01, 0x61, 0x3f, 0x01,
0x79, 0x3f, 0x02, 0x53, 0x01, 0x62, 0x3f, 0x02, 0x5e, 0x01, 0x7b, 0x02},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.a instanceof Boolean"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
});
#if defined(V8_TARGET_LITTLE_ENDIAN)
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x45,
0xc0, 0x00},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Number.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.valueOf() === -42"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x6e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xf8, 0x7f, 0x00},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Number.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"Number.isNaN(result.valueOf())"));
});
#else
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6e, 0xc0, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Number.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.valueOf() === -42"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x6e, 0x7f, 0xf8, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Number.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"Number.isNaN(result.valueOf())"));
});
#endif
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6f, 0x3f, 0x01, 0x53, 0x01, 0x61, 0x3f,
0x01, 0x6e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x40, 0x3f,
0x02, 0x53, 0x01, 0x62, 0x3f, 0x02, 0x5e, 0x01, 0x7b, 0x02},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.a instanceof Number"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x73, 0x07, 0x51, 0x75, 0xc3, 0xa9, 0x62,
0x65, 0x63, 0x00},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === String.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.valueOf() === 'Qu\\xe9bec'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.length === 6"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x73, 0x04, 0xf0, 0x9f, 0x91, 0x8a},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === String.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.valueOf() === '\\ud83d\\udc4a'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.length === 2"));
});
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6f, 0x3f, 0x01, 0x53, 0x01,
0x61, 0x3f, 0x01, 0x73, 0x00, 0x3f, 0x02, 0x53, 0x01,
0x62, 0x3f, 0x02, 0x5e, 0x01, 0x7b, 0x02, 0x00},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.a instanceof String"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
});
}
TEST_F(ValueSerializerTest, RoundTripRegExp) {
RoundTripTest("/foo/g", [this](Local<Value> value) {
ASSERT_TRUE(value->IsRegExp());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === RegExp.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.toString() === '/foo/g'"));
});
RoundTripTest("new RegExp('Qu\\xe9bec', 'i')", [this](Local<Value> value) {
ASSERT_TRUE(value->IsRegExp());
EXPECT_TRUE(
EvaluateScriptForResultBool("result.toString() === '/Qu\\xe9bec/i'"));
});
RoundTripTest("new RegExp('\\ud83d\\udc4a', 'ug')",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsRegExp());
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.toString() === '/\\ud83d\\udc4a/gu'"));
});
RoundTripTest(
"({ a: /foo/gi, get b() { return this.a; }})",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.a instanceof RegExp"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
});
}
TEST_F(ValueSerializerTest, DecodeRegExp) {
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x52, 0x03, 0x66, 0x6f, 0x6f, 0x01},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsRegExp());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === RegExp.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.toString() === '/foo/g'"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x52, 0x07, 0x51, 0x75, 0xc3, 0xa9, 0x62,
0x65, 0x63, 0x02},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsRegExp());
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.toString() === '/Qu\\xe9bec/i'"));
});
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x52, 0x04, 0xf0, 0x9f, 0x91, 0x8a, 0x11, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsRegExp());
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.toString() === '/\\ud83d\\udc4a/gu'"));
});
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6f, 0x3f, 0x01, 0x53, 0x01, 0x61,
0x3f, 0x01, 0x52, 0x03, 0x66, 0x6f, 0x6f, 0x03, 0x3f, 0x02,
0x53, 0x01, 0x62, 0x3f, 0x02, 0x5e, 0x01, 0x7b, 0x02, 0x00},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.a instanceof RegExp"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
});
}
TEST_F(ValueSerializerTest, RoundTripMap) {
RoundTripTest(
"(() => { var m = new Map(); m.set(42, 'foo'); return m; })()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsMap());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Map.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.size === 1"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.get(42) === 'foo'"));
});
RoundTripTest("(() => { var m = new Map(); m.set(m, m); return m; })()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsMap());
EXPECT_TRUE(EvaluateScriptForResultBool("result.size === 1"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.get(result) === result"));
});
// Iteration order must be preserved.
RoundTripTest(
"(() => {"
" var m = new Map();"
" m.set(1, 0); m.set('a', 0); m.set(3, 0); m.set(2, 0);"
" return m;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsMap());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Array.from(result.keys()).toString() === '1,a,3,2'"));
});
}
TEST_F(ValueSerializerTest, DecodeMap) {
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x3b, 0x3f, 0x01, 0x49, 0x54, 0x3f, 0x01, 0x53,
0x03, 0x66, 0x6f, 0x6f, 0x3a, 0x02},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsMap());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Map.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.size === 1"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.get(42) === 'foo'"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3b, 0x3f, 0x01, 0x5e, 0x00, 0x3f, 0x01,
0x5e, 0x00, 0x3a, 0x02, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsMap());
EXPECT_TRUE(EvaluateScriptForResultBool("result.size === 1"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.get(result) === result"));
});
// Iteration order must be preserved.
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3b, 0x3f, 0x01, 0x49, 0x02, 0x3f,
0x01, 0x49, 0x00, 0x3f, 0x01, 0x53, 0x01, 0x61, 0x3f, 0x01,
0x49, 0x00, 0x3f, 0x01, 0x49, 0x06, 0x3f, 0x01, 0x49, 0x00,
0x3f, 0x01, 0x49, 0x04, 0x3f, 0x01, 0x49, 0x00, 0x3a, 0x08},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsMap());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Array.from(result.keys()).toString() === '1,a,3,2'"));
});
}
TEST_F(ValueSerializerTest, RoundTripMapWithTrickyGetters) {
// Even if an entry is removed or reassigned, the original key/value pair is
// used.
RoundTripTest(
"(() => {"
" var m = new Map();"
" m.set(0, { get a() {"
" m.delete(1); m.set(2, 'baz'); m.set(3, 'quux');"
" }});"
" m.set(1, 'foo');"
" m.set(2, 'bar');"
" return m;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsMap());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Array.from(result.keys()).toString() === '0,1,2'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.get(1) === 'foo'"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.get(2) === 'bar'"));
});
// However, deeper modifications of objects yet to be serialized still apply.
RoundTripTest(
"(() => {"
" var m = new Map();"
" var key = { get a() { value.foo = 'bar'; } };"
" var value = { get a() { key.baz = 'quux'; } };"
" m.set(key, value);"
" return m;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsMap());
EXPECT_TRUE(EvaluateScriptForResultBool(
"!('baz' in Array.from(result.keys())[0])"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"Array.from(result.values())[0].foo === 'bar'"));
});
}
TEST_F(ValueSerializerTest, RoundTripSet) {
RoundTripTest(
"(() => { var s = new Set(); s.add(42); s.add('foo'); return s; })()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsSet());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Set.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.size === 2"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.has(42)"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.has('foo')"));
});
RoundTripTest(
"(() => { var s = new Set(); s.add(s); return s; })()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsSet());
EXPECT_TRUE(EvaluateScriptForResultBool("result.size === 1"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.has(result)"));
});
// Iteration order must be preserved.
RoundTripTest(
"(() => {"
" var s = new Set();"
" s.add(1); s.add('a'); s.add(3); s.add(2);"
" return s;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsSet());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Array.from(result.keys()).toString() === '1,a,3,2'"));
});
}
TEST_F(ValueSerializerTest, DecodeSet) {
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x27, 0x3f, 0x01, 0x49, 0x54, 0x3f, 0x01,
0x53, 0x03, 0x66, 0x6f, 0x6f, 0x2c, 0x02},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsSet());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Set.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.size === 2"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.has(42)"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.has('foo')"));
});
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x27, 0x3f, 0x01, 0x5e, 0x00, 0x2c, 0x01, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsSet());
EXPECT_TRUE(EvaluateScriptForResultBool("result.size === 1"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.has(result)"));
});
// Iteration order must be preserved.
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x27, 0x3f, 0x01, 0x49, 0x02, 0x3f, 0x01, 0x53,
0x01, 0x61, 0x3f, 0x01, 0x49, 0x06, 0x3f, 0x01, 0x49, 0x04, 0x2c, 0x04},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsSet());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Array.from(result.keys()).toString() === '1,a,3,2'"));
});
}
TEST_F(ValueSerializerTest, RoundTripSetWithTrickyGetters) {
// Even if an element is added or removed during serialization, the original
// set of elements is used.
RoundTripTest(
"(() => {"
" var s = new Set();"
" s.add({ get a() { s.delete(1); s.add(2); } });"
" s.add(1);"
" return s;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsSet());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Array.from(result.keys()).toString() === '[object Object],1'"));
});
// However, deeper modifications of objects yet to be serialized still apply.
RoundTripTest(
"(() => {"
" var s = new Set();"
" var first = { get a() { second.foo = 'bar'; } };"
" var second = { get a() { first.baz = 'quux'; } };"
" s.add(first);"
" s.add(second);"
" return s;"
"})()",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsSet());
EXPECT_TRUE(EvaluateScriptForResultBool(
"!('baz' in Array.from(result.keys())[0])"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"Array.from(result.keys())[1].foo === 'bar'"));
});
}
TEST_F(ValueSerializerTest, RoundTripArrayBuffer) {
RoundTripTest("new ArrayBuffer()", [this](Local<Value> value) {
ASSERT_TRUE(value->IsArrayBuffer());
EXPECT_EQ(0u, ArrayBuffer::Cast(*value)->ByteLength());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === ArrayBuffer.prototype"));
});
RoundTripTest("new Uint8Array([0, 128, 255]).buffer",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArrayBuffer());
EXPECT_EQ(3u, ArrayBuffer::Cast(*value)->ByteLength());
EXPECT_TRUE(EvaluateScriptForResultBool(
"new Uint8Array(result).toString() === '0,128,255'"));
});
RoundTripTest(
"({ a: new ArrayBuffer(), get b() { return this.a; }})",
[this](Local<Value> value) {
EXPECT_TRUE(
EvaluateScriptForResultBool("result.a instanceof ArrayBuffer"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
});
}
TEST_F(ValueSerializerTest, DecodeArrayBuffer) {
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x42, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArrayBuffer());
EXPECT_EQ(0u, ArrayBuffer::Cast(*value)->ByteLength());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === ArrayBuffer.prototype"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x42, 0x03, 0x00, 0x80, 0xff, 0x00},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArrayBuffer());
EXPECT_EQ(3u, ArrayBuffer::Cast(*value)->ByteLength());
EXPECT_TRUE(EvaluateScriptForResultBool(
"new Uint8Array(result).toString() === '0,128,255'"));
});
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6f, 0x3f, 0x01, 0x53, 0x01,
0x61, 0x3f, 0x01, 0x42, 0x00, 0x3f, 0x02, 0x53, 0x01,
0x62, 0x3f, 0x02, 0x5e, 0x01, 0x7b, 0x02, 0x00},
[this](Local<Value> value) {
EXPECT_TRUE(
EvaluateScriptForResultBool("result.a instanceof ArrayBuffer"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
});
}
TEST_F(ValueSerializerTest, DecodeInvalidArrayBuffer) {
InvalidDecodeTest({0xff, 0x09, 0x42, 0xff, 0xff, 0x00});
}
// An array buffer allocator that never has available memory.
class OOMArrayBufferAllocator : public ArrayBuffer::Allocator {
public:
void* Allocate(size_t) override { return nullptr; }
void* AllocateUninitialized(size_t) override { return nullptr; }
void Free(void*, size_t) override {}
};
TEST_F(ValueSerializerTest, DecodeArrayBufferOOM) {
// This test uses less of the harness, because it has to customize the
// isolate.
OOMArrayBufferAllocator allocator;
Isolate::CreateParams params;
params.array_buffer_allocator = &allocator;
Isolate* isolate = Isolate::New(params);
Isolate::Scope isolate_scope(isolate);
HandleScope handle_scope(isolate);
Local<Context> context = Context::New(isolate);
Context::Scope context_scope(context);
TryCatch try_catch(isolate);
const std::vector<uint8_t> data = {0xff, 0x09, 0x3f, 0x00, 0x42,
0x03, 0x00, 0x80, 0xff, 0x00};
ValueDeserializer deserializer(isolate, &data[0],
static_cast<int>(data.size()), nullptr);
deserializer.SetSupportsLegacyWireFormat(true);
ASSERT_TRUE(deserializer.ReadHeader(context).FromMaybe(false));
ASSERT_FALSE(try_catch.HasCaught());
EXPECT_TRUE(deserializer.ReadValue(context).IsEmpty());
EXPECT_TRUE(try_catch.HasCaught());
}
// Includes an ArrayBuffer wrapper marked for transfer from the serialization
// context to the deserialization context.
class ValueSerializerTestWithArrayBufferTransfer : public ValueSerializerTest {
protected:
static const size_t kTestByteLength = 4;
ValueSerializerTestWithArrayBufferTransfer() {
{
Context::Scope scope(serialization_context());
input_buffer_ = ArrayBuffer::New(isolate(), nullptr, 0);
}
{
Context::Scope scope(deserialization_context());
output_buffer_ = ArrayBuffer::New(isolate(), kTestByteLength);
const uint8_t data[kTestByteLength] = {0x00, 0x01, 0x80, 0xff};
memcpy(output_buffer_->GetContents().Data(), data, kTestByteLength);
}
}
const Local<ArrayBuffer>& input_buffer() { return input_buffer_; }
const Local<ArrayBuffer>& output_buffer() { return output_buffer_; }
void BeforeEncode(ValueSerializer* serializer) override {
serializer->TransferArrayBuffer(0, input_buffer_);
}
void AfterEncode() override { input_buffer_->Neuter(); }
void BeforeDecode(ValueDeserializer* deserializer) override {
deserializer->TransferArrayBuffer(0, output_buffer_);
}
private:
Local<ArrayBuffer> input_buffer_;
Local<ArrayBuffer> output_buffer_;
};
TEST_F(ValueSerializerTestWithArrayBufferTransfer,
RoundTripArrayBufferTransfer) {
RoundTripTest([this]() { return input_buffer(); },
[this](Local<Value> value) {
ASSERT_TRUE(value->IsArrayBuffer());
EXPECT_EQ(output_buffer(), value);
EXPECT_TRUE(EvaluateScriptForResultBool(
"new Uint8Array(result).toString() === '0,1,128,255'"));
});
RoundTripTest(
[this]() {
Local<Object> object = Object::New(isolate());
EXPECT_TRUE(object
->CreateDataProperty(serialization_context(),
StringFromUtf8("a"),
input_buffer())
.FromMaybe(false));
EXPECT_TRUE(object
->CreateDataProperty(serialization_context(),
StringFromUtf8("b"),
input_buffer())
.FromMaybe(false));
return object;
},
[this](Local<Value> value) {
EXPECT_TRUE(
EvaluateScriptForResultBool("result.a instanceof ArrayBuffer"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"new Uint8Array(result.a).toString() === '0,1,128,255'"));
});
}
TEST_F(ValueSerializerTest, RoundTripTypedArray) {
// Check that the right type comes out the other side for every kind of typed
// array.
#define TYPED_ARRAY_ROUND_TRIP_TEST(Type, type, TYPE, ctype, size) \
RoundTripTest("new " #Type "Array(2)", [this](Local<Value> value) { \
ASSERT_TRUE(value->Is##Type##Array()); \
EXPECT_EQ(2u * size, TypedArray::Cast(*value)->ByteLength()); \
EXPECT_EQ(2u, TypedArray::Cast(*value)->Length()); \
EXPECT_TRUE(EvaluateScriptForResultBool( \
"Object.getPrototypeOf(result) === " #Type "Array.prototype")); \
});
TYPED_ARRAYS(TYPED_ARRAY_ROUND_TRIP_TEST)
#undef TYPED_ARRAY_CASE
// Check that values of various kinds are suitably preserved.
RoundTripTest("new Uint8Array([1, 128, 255])", [this](Local<Value> value) {
EXPECT_TRUE(
EvaluateScriptForResultBool("result.toString() === '1,128,255'"));
});
RoundTripTest("new Int16Array([0, 256, -32768])", [this](Local<Value> value) {
EXPECT_TRUE(
EvaluateScriptForResultBool("result.toString() === '0,256,-32768'"));
});
RoundTripTest("new Float32Array([0, -0.5, NaN, Infinity])",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.toString() === '0,-0.5,NaN,Infinity'"));
});
// Array buffer views sharing a buffer should do so on the other side.
// Similarly, multiple references to the same typed array should be resolved.
RoundTripTest(
"(() => {"
" var buffer = new ArrayBuffer(32);"
" return {"
" u8: new Uint8Array(buffer),"
" get u8_2() { return this.u8; },"
" f32: new Float32Array(buffer, 4, 5),"
" b: buffer,"
" };"
"})()",
[this](Local<Value> value) {
EXPECT_TRUE(
EvaluateScriptForResultBool("result.u8 instanceof Uint8Array"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.u8 === result.u8_2"));
EXPECT_TRUE(
EvaluateScriptForResultBool("result.f32 instanceof Float32Array"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.u8.buffer === result.f32.buffer"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.f32.byteOffset === 4"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.f32.length === 5"));
});
}
TEST_F(ValueSerializerTest, DecodeTypedArray) {
// Check that the right type comes out the other side for every kind of typed
// array.
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3f, 0x00, 0x42, 0x02, 0x00, 0x00, 0x56,
0x42, 0x00, 0x02},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsUint8Array());
EXPECT_EQ(2u, TypedArray::Cast(*value)->ByteLength());
EXPECT_EQ(2u, TypedArray::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Uint8Array.prototype"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3f, 0x00, 0x42, 0x02, 0x00, 0x00, 0x56,
0x62, 0x00, 0x02},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsInt8Array());
EXPECT_EQ(2u, TypedArray::Cast(*value)->ByteLength());
EXPECT_EQ(2u, TypedArray::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Int8Array.prototype"));
});
#if defined(V8_TARGET_LITTLE_ENDIAN)
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3f, 0x00, 0x42, 0x04, 0x00, 0x00, 0x00,
0x00, 0x56, 0x57, 0x00, 0x04},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsUint16Array());
EXPECT_EQ(4u, TypedArray::Cast(*value)->ByteLength());
EXPECT_EQ(2u, TypedArray::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Uint16Array.prototype"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3f, 0x00, 0x42, 0x04, 0x00, 0x00, 0x00,
0x00, 0x56, 0x77, 0x00, 0x04},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsInt16Array());
EXPECT_EQ(4u, TypedArray::Cast(*value)->ByteLength());
EXPECT_EQ(2u, TypedArray::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Int16Array.prototype"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3f, 0x00, 0x42, 0x08, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x56, 0x44, 0x00, 0x08},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsUint32Array());
EXPECT_EQ(8u, TypedArray::Cast(*value)->ByteLength());
EXPECT_EQ(2u, TypedArray::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Uint32Array.prototype"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3f, 0x00, 0x42, 0x08, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x56, 0x64, 0x00, 0x08},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsInt32Array());
EXPECT_EQ(8u, TypedArray::Cast(*value)->ByteLength());
EXPECT_EQ(2u, TypedArray::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Int32Array.prototype"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3f, 0x00, 0x42, 0x08, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x56, 0x66, 0x00, 0x08},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsFloat32Array());
EXPECT_EQ(8u, TypedArray::Cast(*value)->ByteLength());
EXPECT_EQ(2u, TypedArray::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Float32Array.prototype"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3f, 0x00, 0x42, 0x10, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x56, 0x46, 0x00, 0x10},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsFloat64Array());
EXPECT_EQ(16u, TypedArray::Cast(*value)->ByteLength());
EXPECT_EQ(2u, TypedArray::Cast(*value)->Length());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === Float64Array.prototype"));
});
#endif // V8_TARGET_LITTLE_ENDIAN
// Check that values of various kinds are suitably preserved.
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3f, 0x00, 0x42, 0x03, 0x01, 0x80, 0xff,
0x56, 0x42, 0x00, 0x03, 0x00},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.toString() === '1,128,255'"));
});
#if defined(V8_TARGET_LITTLE_ENDIAN)
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3f, 0x00, 0x42, 0x06, 0x00, 0x00, 0x00,
0x01, 0x00, 0x80, 0x56, 0x77, 0x00, 0x06},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.toString() === '0,256,-32768'"));
});
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3f, 0x00, 0x42, 0x10, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xbf, 0x00, 0x00, 0xc0, 0x7f,
0x00, 0x00, 0x80, 0x7f, 0x56, 0x66, 0x00, 0x10},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.toString() === '0,-0.5,NaN,Infinity'"));
});
#endif // V8_TARGET_LITTLE_ENDIAN
// Array buffer views sharing a buffer should do so on the other side.
// Similarly, multiple references to the same typed array should be resolved.
DecodeTest(
{0xff, 0x09, 0x3f, 0x00, 0x6f, 0x3f, 0x01, 0x53, 0x02, 0x75, 0x38, 0x3f,
0x01, 0x3f, 0x01, 0x42, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x56, 0x42, 0x00, 0x20, 0x3f, 0x03, 0x53, 0x04, 0x75, 0x38, 0x5f,
0x32, 0x3f, 0x03, 0x5e, 0x02, 0x3f, 0x03, 0x53, 0x03, 0x66, 0x33, 0x32,
0x3f, 0x03, 0x3f, 0x03, 0x5e, 0x01, 0x56, 0x66, 0x04, 0x14, 0x3f, 0x04,
0x53, 0x01, 0x62, 0x3f, 0x04, 0x5e, 0x01, 0x7b, 0x04, 0x00},
[this](Local<Value> value) {
EXPECT_TRUE(
EvaluateScriptForResultBool("result.u8 instanceof Uint8Array"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.u8 === result.u8_2"));
EXPECT_TRUE(
EvaluateScriptForResultBool("result.f32 instanceof Float32Array"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.u8.buffer === result.f32.buffer"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.f32.byteOffset === 4"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.f32.length === 5"));
});
}
TEST_F(ValueSerializerTest, DecodeInvalidTypedArray) {
// Byte offset out of range.
InvalidDecodeTest(
{0xff, 0x09, 0x42, 0x02, 0x00, 0x00, 0x56, 0x42, 0x03, 0x01});
// Byte offset in range, offset + length out of range.
InvalidDecodeTest(
{0xff, 0x09, 0x42, 0x02, 0x00, 0x00, 0x56, 0x42, 0x01, 0x03});
// Byte offset not divisible by element size.
InvalidDecodeTest(
{0xff, 0x09, 0x42, 0x04, 0x00, 0x00, 0x00, 0x00, 0x56, 0x77, 0x01, 0x02});
// Byte length not divisible by element size.
InvalidDecodeTest(
{0xff, 0x09, 0x42, 0x04, 0x00, 0x00, 0x00, 0x00, 0x56, 0x77, 0x02, 0x01});
// Invalid view type (0xff).
InvalidDecodeTest(
{0xff, 0x09, 0x42, 0x02, 0x00, 0x00, 0x56, 0xff, 0x01, 0x01});
}
TEST_F(ValueSerializerTest, RoundTripDataView) {
RoundTripTest("new DataView(new ArrayBuffer(4), 1, 2)",
[this](Local<Value> value) {
ASSERT_TRUE(value->IsDataView());
EXPECT_EQ(1u, DataView::Cast(*value)->ByteOffset());
EXPECT_EQ(2u, DataView::Cast(*value)->ByteLength());
EXPECT_EQ(4u, DataView::Cast(*value)->Buffer()->ByteLength());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === DataView.prototype"));
});
}
TEST_F(ValueSerializerTest, DecodeDataView) {
DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x3f, 0x00, 0x42, 0x04, 0x00, 0x00, 0x00,
0x00, 0x56, 0x3f, 0x01, 0x02},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsDataView());
EXPECT_EQ(1u, DataView::Cast(*value)->ByteOffset());
EXPECT_EQ(2u, DataView::Cast(*value)->ByteLength());
EXPECT_EQ(4u, DataView::Cast(*value)->Buffer()->ByteLength());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === DataView.prototype"));
});
}
TEST_F(ValueSerializerTest, DecodeInvalidDataView) {
// Byte offset out of range.
InvalidDecodeTest(
{0xff, 0x09, 0x42, 0x02, 0x00, 0x00, 0x56, 0x3f, 0x03, 0x01});
// Byte offset in range, offset + length out of range.
InvalidDecodeTest(
{0xff, 0x09, 0x42, 0x02, 0x00, 0x00, 0x56, 0x3f, 0x01, 0x03});
}
class ValueSerializerTestWithSharedArrayBufferTransfer
: public ValueSerializerTest {
protected:
static const size_t kTestByteLength = 4;
ValueSerializerTestWithSharedArrayBufferTransfer()
: serializer_delegate_(this) {
const uint8_t data[kTestByteLength] = {0x00, 0x01, 0x80, 0xff};
memcpy(data_, data, kTestByteLength);
{
Context::Scope scope(serialization_context());
input_buffer_ =
SharedArrayBuffer::New(isolate(), &data_, kTestByteLength);
}
{
Context::Scope scope(deserialization_context());
output_buffer_ =
SharedArrayBuffer::New(isolate(), &data_, kTestByteLength);
}
}
const Local<SharedArrayBuffer>& input_buffer() { return input_buffer_; }
const Local<SharedArrayBuffer>& output_buffer() { return output_buffer_; }
void BeforeDecode(ValueDeserializer* deserializer) override {
deserializer->TransferSharedArrayBuffer(0, output_buffer_);
}
static void SetUpTestCase() {
flag_was_enabled_ = i::FLAG_harmony_sharedarraybuffer;
i::FLAG_harmony_sharedarraybuffer = true;
ValueSerializerTest::SetUpTestCase();
}
static void TearDownTestCase() {
ValueSerializerTest::TearDownTestCase();
i::FLAG_harmony_sharedarraybuffer = flag_was_enabled_;
flag_was_enabled_ = false;
}
protected:
// GMock doesn't use the "override" keyword.
#if __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Winconsistent-missing-override"
#endif
class SerializerDelegate : public ValueSerializer::Delegate {
public:
explicit SerializerDelegate(
ValueSerializerTestWithSharedArrayBufferTransfer* test)
: test_(test) {}
MOCK_METHOD2(GetSharedArrayBufferId,
Maybe<uint32_t>(Isolate* isolate,
Local<SharedArrayBuffer> shared_array_buffer));
void ThrowDataCloneError(Local<String> message) override {
test_->isolate()->ThrowException(Exception::Error(message));
}
private:
ValueSerializerTestWithSharedArrayBufferTransfer* test_;
};
#if __clang__
#pragma clang diagnostic pop
#endif
ValueSerializer::Delegate* GetSerializerDelegate() override {
return &serializer_delegate_;
}
SerializerDelegate serializer_delegate_;
private:
static bool flag_was_enabled_;
uint8_t data_[kTestByteLength];
Local<SharedArrayBuffer> input_buffer_;
Local<SharedArrayBuffer> output_buffer_;
};
bool ValueSerializerTestWithSharedArrayBufferTransfer::flag_was_enabled_ =
false;
TEST_F(ValueSerializerTestWithSharedArrayBufferTransfer,
RoundTripSharedArrayBufferTransfer) {
EXPECT_CALL(serializer_delegate_,
GetSharedArrayBufferId(isolate(), input_buffer()))
.WillRepeatedly(Return(Just(0U)));
RoundTripTest([this]() { return input_buffer(); },
[this](Local<Value> value) {
ASSERT_TRUE(value->IsSharedArrayBuffer());
EXPECT_EQ(output_buffer(), value);
EXPECT_TRUE(EvaluateScriptForResultBool(
"new Uint8Array(result).toString() === '0,1,128,255'"));
});
RoundTripTest(
[this]() {
Local<Object> object = Object::New(isolate());
EXPECT_TRUE(object
->CreateDataProperty(serialization_context(),
StringFromUtf8("a"),
input_buffer())
.FromMaybe(false));
EXPECT_TRUE(object
->CreateDataProperty(serialization_context(),
StringFromUtf8("b"),
input_buffer())
.FromMaybe(false));
return object;
},
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.a instanceof SharedArrayBuffer"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
EXPECT_TRUE(EvaluateScriptForResultBool(
"new Uint8Array(result.a).toString() === '0,1,128,255'"));
});
}
TEST_F(ValueSerializerTest, UnsupportedHostObject) {
InvalidEncodeTest("new ExampleHostObject()");
InvalidEncodeTest("({ a: new ExampleHostObject() })");
}
class ValueSerializerTestWithHostObject : public ValueSerializerTest {
protected:
ValueSerializerTestWithHostObject() : serializer_delegate_(this) {}
static const uint8_t kExampleHostObjectTag;
void WriteExampleHostObjectTag() {
serializer_->WriteRawBytes(&kExampleHostObjectTag, 1);
}
bool ReadExampleHostObjectTag() {
const void* tag;
return deserializer_->ReadRawBytes(1, &tag) &&
*reinterpret_cast<const uint8_t*>(tag) == kExampleHostObjectTag;
}
// GMock doesn't use the "override" keyword.
#if __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Winconsistent-missing-override"
#endif
class SerializerDelegate : public ValueSerializer::Delegate {
public:
explicit SerializerDelegate(ValueSerializerTestWithHostObject* test)
: test_(test) {}
MOCK_METHOD2(WriteHostObject,
Maybe<bool>(Isolate* isolate, Local<Object> object));
void ThrowDataCloneError(Local<String> message) override {
test_->isolate()->ThrowException(Exception::Error(message));
}
private:
ValueSerializerTestWithHostObject* test_;
};
class DeserializerDelegate : public ValueDeserializer::Delegate {
public:
MOCK_METHOD1(ReadHostObject, MaybeLocal<Object>(Isolate* isolate));
};
#if __clang__
#pragma clang diagnostic pop
#endif
ValueSerializer::Delegate* GetSerializerDelegate() override {
return &serializer_delegate_;
}
void BeforeEncode(ValueSerializer* serializer) override {
serializer_ = serializer;
}
ValueDeserializer::Delegate* GetDeserializerDelegate() override {
return &deserializer_delegate_;
}
void BeforeDecode(ValueDeserializer* deserializer) override {
deserializer_ = deserializer;
}
SerializerDelegate serializer_delegate_;
DeserializerDelegate deserializer_delegate_;
ValueSerializer* serializer_;
ValueDeserializer* deserializer_;
friend class SerializerDelegate;
friend class DeserializerDelegate;
};
// This is a tag that's not used in V8.
const uint8_t ValueSerializerTestWithHostObject::kExampleHostObjectTag = '+';
TEST_F(ValueSerializerTestWithHostObject, RoundTripUint32) {
// The host can serialize data as uint32_t.
EXPECT_CALL(serializer_delegate_, WriteHostObject(isolate(), _))
.WillRepeatedly(Invoke([this](Isolate*, Local<Object> object) {
uint32_t value = 0;
EXPECT_TRUE(object->GetInternalField(0)
->Uint32Value(serialization_context())
.To(&value));
WriteExampleHostObjectTag();
serializer_->WriteUint32(value);
return Just(true);
}));
EXPECT_CALL(deserializer_delegate_, ReadHostObject(isolate()))
.WillRepeatedly(Invoke([this](Isolate*) {
EXPECT_TRUE(ReadExampleHostObjectTag());
uint32_t value = 0;
EXPECT_TRUE(deserializer_->ReadUint32(&value));
Local<Value> argv[] = {Integer::NewFromUnsigned(isolate(), value)};
return NewHostObject(deserialization_context(), arraysize(argv), argv);
}));
RoundTripTest("new ExampleHostObject(42)", [this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
ASSERT_TRUE(Object::Cast(*value)->InternalFieldCount());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === ExampleHostObject.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.value === 42"));
});
RoundTripTest(
"new ExampleHostObject(0xCAFECAFE)", [this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.value === 0xCAFECAFE"));
});
}
TEST_F(ValueSerializerTestWithHostObject, RoundTripUint64) {
// The host can serialize data as uint64_t.
EXPECT_CALL(serializer_delegate_, WriteHostObject(isolate(), _))
.WillRepeatedly(Invoke([this](Isolate*, Local<Object> object) {
uint32_t value = 0, value2 = 0;
EXPECT_TRUE(object->GetInternalField(0)
->Uint32Value(serialization_context())
.To(&value));
EXPECT_TRUE(object->GetInternalField(1)
->Uint32Value(serialization_context())
.To(&value2));
WriteExampleHostObjectTag();
serializer_->WriteUint64((static_cast<uint64_t>(value) << 32) | value2);
return Just(true);
}));
EXPECT_CALL(deserializer_delegate_, ReadHostObject(isolate()))
.WillRepeatedly(Invoke([this](Isolate*) {
EXPECT_TRUE(ReadExampleHostObjectTag());
uint64_t value_packed;
EXPECT_TRUE(deserializer_->ReadUint64(&value_packed));
Local<Value> argv[] = {
Integer::NewFromUnsigned(isolate(),
static_cast<uint32_t>(value_packed >> 32)),
Integer::NewFromUnsigned(isolate(),
static_cast<uint32_t>(value_packed))};
return NewHostObject(deserialization_context(), arraysize(argv), argv);
}));
RoundTripTest("new ExampleHostObject(42, 0)", [this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
ASSERT_TRUE(Object::Cast(*value)->InternalFieldCount());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === ExampleHostObject.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.value === 42"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.value2 === 0"));
});
RoundTripTest(
"new ExampleHostObject(0xFFFFFFFF, 0x12345678)",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.value === 0xFFFFFFFF"));
EXPECT_TRUE(
EvaluateScriptForResultBool("result.value2 === 0x12345678"));
});
}
TEST_F(ValueSerializerTestWithHostObject, RoundTripDouble) {
// The host can serialize data as double.
EXPECT_CALL(serializer_delegate_, WriteHostObject(isolate(), _))
.WillRepeatedly(Invoke([this](Isolate*, Local<Object> object) {
double value = 0;
EXPECT_TRUE(object->GetInternalField(0)
->NumberValue(serialization_context())
.To(&value));
WriteExampleHostObjectTag();
serializer_->WriteDouble(value);
return Just(true);
}));
EXPECT_CALL(deserializer_delegate_, ReadHostObject(isolate()))
.WillRepeatedly(Invoke([this](Isolate*) {
EXPECT_TRUE(ReadExampleHostObjectTag());
double value = 0;
EXPECT_TRUE(deserializer_->ReadDouble(&value));
Local<Value> argv[] = {Number::New(isolate(), value)};
return NewHostObject(deserialization_context(), arraysize(argv), argv);
}));
RoundTripTest("new ExampleHostObject(-3.5)", [this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
ASSERT_TRUE(Object::Cast(*value)->InternalFieldCount());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === ExampleHostObject.prototype"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.value === -3.5"));
});
RoundTripTest("new ExampleHostObject(NaN)", [this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("Number.isNaN(result.value)"));
});
RoundTripTest("new ExampleHostObject(Infinity)", [this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("result.value === Infinity"));
});
RoundTripTest("new ExampleHostObject(-0)", [this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool("1/result.value === -Infinity"));
});
}
TEST_F(ValueSerializerTestWithHostObject, RoundTripRawBytes) {
// The host can serialize arbitrary raw bytes.
const struct {
uint64_t u64;
uint32_t u32;
char str[12];
} sample_data = {0x1234567812345678, 0x87654321, "Hello world"};
EXPECT_CALL(serializer_delegate_, WriteHostObject(isolate(), _))
.WillRepeatedly(
Invoke([this, &sample_data](Isolate*, Local<Object> object) {
WriteExampleHostObjectTag();
serializer_->WriteRawBytes(&sample_data, sizeof(sample_data));
return Just(true);
}));
EXPECT_CALL(deserializer_delegate_, ReadHostObject(isolate()))
.WillRepeatedly(Invoke([this, &sample_data](Isolate*) {
EXPECT_TRUE(ReadExampleHostObjectTag());
const void* copied_data = nullptr;
EXPECT_TRUE(
deserializer_->ReadRawBytes(sizeof(sample_data), &copied_data));
if (copied_data) {
EXPECT_EQ(0, memcmp(&sample_data, copied_data, sizeof(sample_data)));
}
return NewHostObject(deserialization_context(), 0, nullptr);
}));
RoundTripTest("new ExampleHostObject()", [this](Local<Value> value) {
ASSERT_TRUE(value->IsObject());
ASSERT_TRUE(Object::Cast(*value)->InternalFieldCount());
EXPECT_TRUE(EvaluateScriptForResultBool(
"Object.getPrototypeOf(result) === ExampleHostObject.prototype"));
});
}
TEST_F(ValueSerializerTestWithHostObject, RoundTripSameObject) {
// If the same object exists in two places, the delegate should be invoked
// only once, and the objects should be the same (by reference equality) on
// the other side.
EXPECT_CALL(serializer_delegate_, WriteHostObject(isolate(), _))
.WillOnce(Invoke([this](Isolate*, Local<Object> object) {
WriteExampleHostObjectTag();
return Just(true);
}));
EXPECT_CALL(deserializer_delegate_, ReadHostObject(isolate()))
.WillOnce(Invoke([this](Isolate*) {
EXPECT_TRUE(ReadExampleHostObjectTag());
return NewHostObject(deserialization_context(), 0, nullptr);
}));
RoundTripTest(
"({ a: new ExampleHostObject(), get b() { return this.a; }})",
[this](Local<Value> value) {
EXPECT_TRUE(EvaluateScriptForResultBool(
"result.a instanceof ExampleHostObject"));
EXPECT_TRUE(EvaluateScriptForResultBool("result.a === result.b"));
});
}
// It's expected that WebAssembly has more exhaustive tests elsewhere; this
// mostly checks that the logic to embed it in structured clone serialization
// works correctly.
class ValueSerializerTestWithWasm : public ValueSerializerTest {
protected:
static void SetUpTestCase() {
g_saved_flag = i::FLAG_expose_wasm;
i::FLAG_expose_wasm = true;
ValueSerializerTest::SetUpTestCase();
}
static void TearDownTestCase() {
ValueSerializerTest::TearDownTestCase();
i::FLAG_expose_wasm = g_saved_flag;
g_saved_flag = false;
}
private:
static bool g_saved_flag;
};
bool ValueSerializerTestWithWasm::g_saved_flag = false;
// A simple module which exports an "increment" function.
// Copied from test/mjsunit/wasm/incrementer.wasm.
const unsigned char kIncrementerWasm[] = {
0, 97, 115, 109, 13, 0, 0, 0, 1, 6, 1, 96, 1, 127, 1, 127,
3, 2, 1, 0, 7, 13, 1, 9, 105, 110, 99, 114, 101, 109, 101, 110,
116, 0, 0, 10, 9, 1, 7, 0, 32, 0, 65, 1, 106, 11,
};
TEST_F(ValueSerializerTestWithWasm, RoundTripWasmModule) {
RoundTripTest(
[this]() {
return WasmCompiledModule::DeserializeOrCompile(
isolate(), {nullptr, 0},
{kIncrementerWasm, sizeof(kIncrementerWasm)})
.ToLocalChecked();
},
[this](Local<Value> value) {
ASSERT_TRUE(value->IsWebAssemblyCompiledModule());
EXPECT_TRUE(EvaluateScriptForResultBool(
"new WebAssembly.Instance(result).exports.increment(8) === 9"));
});
}
// As produced around Chrome 56.
const unsigned char kSerializedIncrementerWasm[] = {
0xff, 0x09, 0x3f, 0x00, 0x57, 0x79, 0x2d, 0x00, 0x61, 0x73, 0x6d, 0x0d,
0x00, 0x00, 0x00, 0x01, 0x06, 0x01, 0x60, 0x01, 0x7f, 0x01, 0x7f, 0x03,
0x02, 0x01, 0x00, 0x07, 0x0d, 0x01, 0x09, 0x69, 0x6e, 0x63, 0x72, 0x65,
0x6d, 0x65, 0x6e, 0x74, 0x00, 0x00, 0x0a, 0x08, 0x01, 0x06, 0x00, 0x20,
0x00, 0x41, 0x01, 0x6a, 0xf8, 0x04, 0xa1, 0x06, 0xde, 0xc0, 0xc6, 0x44,
0x3c, 0x29, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x02, 0x00, 0x00, 0x81, 0x4e,
0xce, 0x7c, 0x05, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x30, 0x02,
0x00, 0x00, 0xb0, 0x25, 0x30, 0xe3, 0xf2, 0xdb, 0x2e, 0x48, 0x00, 0x00,
0x00, 0x80, 0xe8, 0x00, 0x00, 0x80, 0xe0, 0x01, 0x00, 0x80, 0x00, 0x00,
0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x07, 0x08, 0x00, 0x00, 0x09, 0x04,
0x10, 0x02, 0x00, 0x00, 0x00, 0x00, 0x01, 0x3c, 0x8c, 0xc0, 0x00, 0x00,
0x00, 0x00, 0x0d, 0x00, 0x00, 0x00, 0x01, 0x10, 0x8c, 0xc0, 0x00, 0x00,
0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x02, 0x70, 0x94, 0x01, 0x0c, 0x8b,
0xc1, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x25, 0xdc, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x9e, 0x01, 0x10, 0x8c, 0xc0, 0x00, 0x00,
0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x84, 0xc0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x05, 0x7d, 0x01, 0x1a, 0xe1, 0x02, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x23, 0x88, 0x42, 0x32, 0x03,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x00, 0x04, 0x00,
0x00, 0x02, 0xa1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x49, 0x3b, 0xa5, 0x60, 0x0c, 0x00,
0x00, 0x0f, 0x86, 0x04, 0x00, 0x00, 0x00, 0x83, 0xc0, 0x01, 0xc3, 0x55,
0x48, 0x89, 0xe5, 0x49, 0xba, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00,
0x00, 0x41, 0x52, 0x48, 0x83, 0xec, 0x08, 0x48, 0x89, 0x45, 0xf0, 0x48,
0xbb, 0xb0, 0x67, 0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x33, 0xc0, 0x48,
0xbe, 0xe1, 0x57, 0x81, 0x85, 0xf6, 0x14, 0x00, 0x00, 0xe8, 0xfc, 0x3c,
0xea, 0xff, 0x48, 0x8b, 0x45, 0xf0, 0x48, 0x8b, 0xe5, 0x5d, 0xeb, 0xbf,
0x66, 0x90, 0x01, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x44, 0x00,
0x00, 0x00, 0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x0f, 0x20, 0x84, 0x0f, 0x7d, 0x01, 0x0d, 0x00, 0x0f, 0x04,
0x6d, 0x08, 0x0f, 0xf0, 0x02, 0x80, 0x94, 0x01, 0x0c, 0x8b, 0xc1, 0x00,
0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0xed, 0xa9, 0x2d, 0x00, 0x00,
0x00, 0x00, 0x00, 0x9e, 0xe0, 0x38, 0x1a, 0x61, 0x03, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x23, 0x88, 0x42, 0x32, 0x03, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9a, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x4e, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00,
0x02, 0xf9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
0xff, 0x00, 0x00, 0x00, 0x00, 0x55, 0x48, 0x89, 0xe5, 0x56, 0x57, 0x48,
0x8b, 0x45, 0x10, 0xe8, 0x11, 0xed, 0xed, 0xff, 0xa8, 0x01, 0x0f, 0x85,
0x2d, 0x00, 0x00, 0x00, 0x48, 0xc1, 0xe8, 0x20, 0xc5, 0xf9, 0x57, 0xc0,
0xc5, 0xfb, 0x2a, 0xc0, 0xc4, 0xe1, 0xfb, 0x2c, 0xc0, 0x48, 0x83, 0xf8,
0x01, 0x0f, 0x80, 0x34, 0x00, 0x00, 0x00, 0x8b, 0xc0, 0xe8, 0x27, 0xfe,
0xff, 0xff, 0x48, 0xc1, 0xe0, 0x20, 0x48, 0x8b, 0xe5, 0x5d, 0xc2, 0x10,
0x00, 0x49, 0x39, 0x45, 0xa0, 0x0f, 0x84, 0x07, 0x00, 0x00, 0x00, 0xc5,
0xfb, 0x10, 0x40, 0x07, 0xeb, 0xce, 0x49, 0xba, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xf8, 0x7f, 0xc4, 0xc1, 0xf9, 0x6e, 0xc2, 0xeb, 0xbd, 0x48,
0x83, 0xec, 0x08, 0xc5, 0xfb, 0x11, 0x04, 0x24, 0xe8, 0xcc, 0xfe, 0xff,
0xff, 0x48, 0x83, 0xc4, 0x08, 0xeb, 0xb8, 0x66, 0x90, 0x02, 0x00, 0x00,
0x00, 0x03, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
0x0f, 0x39, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0x00,
0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x20, 0x84,
0x0f, 0xcc, 0x6e, 0x7d, 0x01, 0x72, 0x98, 0x00, 0x0f, 0xdc, 0x6d, 0x0c,
0x0f, 0xb0, 0x84, 0x0d, 0x04, 0x84, 0xe3, 0xc0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x84, 0xe0, 0x84, 0x84, 0x18, 0x2f, 0x2f, 0x2f,
0x2f, 0x2f};
TEST_F(ValueSerializerTestWithWasm, DecodeWasmModule) {
if (true) return; // TODO(mtrofin): fix this test
std::vector<uint8_t> raw(
kSerializedIncrementerWasm,
kSerializedIncrementerWasm + sizeof(kSerializedIncrementerWasm));
DecodeTest(raw, [this](Local<Value> value) {
ASSERT_TRUE(value->IsWebAssemblyCompiledModule());
EXPECT_TRUE(EvaluateScriptForResultBool(
"new WebAssembly.Instance(result).exports.increment(8) === 9"));
});
}
// As above, but with empty compiled data. Should work due to fallback to wire
// data.
const unsigned char kSerializedIncrementerWasmWithInvalidCompiledData[] = {
0xff, 0x09, 0x3f, 0x00, 0x57, 0x79, 0x2d, 0x00, 0x61, 0x73, 0x6d,
0x0d, 0x00, 0x00, 0x00, 0x01, 0x06, 0x01, 0x60, 0x01, 0x7f, 0x01,
0x7f, 0x03, 0x02, 0x01, 0x00, 0x07, 0x0d, 0x01, 0x09, 0x69, 0x6e,
0x63, 0x72, 0x65, 0x6d, 0x65, 0x6e, 0x74, 0x00, 0x00, 0x0a, 0x08,
0x01, 0x06, 0x00, 0x20, 0x00, 0x41, 0x01, 0x6a, 0x00};
TEST_F(ValueSerializerTestWithWasm, DecodeWasmModuleWithInvalidCompiledData) {
if (true) return; // TODO(titzer): regenerate this test
std::vector<uint8_t> raw(
kSerializedIncrementerWasmWithInvalidCompiledData,
kSerializedIncrementerWasmWithInvalidCompiledData +
sizeof(kSerializedIncrementerWasmWithInvalidCompiledData));
DecodeTest(raw, [this](Local<Value> value) {
ASSERT_TRUE(value->IsWebAssemblyCompiledModule());
EXPECT_TRUE(EvaluateScriptForResultBool(
"new WebAssembly.Instance(result).exports.increment(8) === 9"));
});
}
// As above, but also with empty wire data. Should fail.
const unsigned char kSerializedIncrementerWasmInvalid[] = {
0xff, 0x09, 0x3f, 0x00, 0x57, 0x79, 0x00, 0x00};
TEST_F(ValueSerializerTestWithWasm,
DecodeWasmModuleWithInvalidCompiledAndWireData) {
std::vector<uint8_t> raw(kSerializedIncrementerWasmInvalid,
kSerializedIncrementerWasmInvalid +
sizeof(kSerializedIncrementerWasmInvalid));
InvalidDecodeTest(raw);
}
TEST_F(ValueSerializerTestWithWasm, DecodeWasmModuleWithInvalidDataLength) {
InvalidDecodeTest({0xff, 0x09, 0x3f, 0x00, 0x57, 0x79, 0x7f, 0x00});
InvalidDecodeTest({0xff, 0x09, 0x3f, 0x00, 0x57, 0x79, 0x00, 0x7f});
}
} // namespace
} // namespace v8
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