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#include "v8.h"
#include "aliased_buffer.h"
#include "node_test_fixture.h"
using node::AliasedBuffer;
class AliasBufferTest : public NodeTestFixture {};
template<class NativeT>
void CreateOracleValues(NativeT* buf, size_t count) {
for (size_t i = 0, j = count; i < count; i++, j--) {
buf[i] = static_cast<NativeT>(j);
}
}
template<class NativeT, class V8T>
void WriteViaOperator(AliasedBuffer<NativeT, V8T>* aliasedBuffer,
size_t size,
NativeT* oracle) {
// write through the API
for (size_t i = 0; i < size; i++) {
(*aliasedBuffer)[i] = oracle[i];
}
}
template<class NativeT, class V8T>
void WriteViaSetValue(AliasedBuffer<NativeT, V8T>* aliasedBuffer,
size_t size,
NativeT* oracle) {
// write through the API
for (size_t i = 0; i < size; i++) {
aliasedBuffer->SetValue(i, oracle[i]);
}
}
template<class NativeT, class V8T>
void ReadAndValidate(v8::Isolate* isolate,
v8::Local<v8::Context> context,
AliasedBuffer<NativeT, V8T>* aliasedBuffer,
size_t size,
NativeT* oracle) {
// read through the API
for (size_t i = 0; i < size; i++) {
NativeT v1 = (*aliasedBuffer)[i];
NativeT v2 = aliasedBuffer->GetValue(i);
EXPECT_TRUE(v1 == oracle[i]);
EXPECT_TRUE(v2 == oracle[i]);
}
// validate size of JS Buffer
EXPECT_TRUE(aliasedBuffer->GetJSArray()->Length() == size);
EXPECT_TRUE(
aliasedBuffer->GetJSArray()->ByteLength() ==
(size * sizeof(NativeT)));
// validate operator * and GetBuffer are the same
EXPECT_TRUE(aliasedBuffer->GetNativeBuffer() == *(*aliasedBuffer));
// read through the JS API
for (size_t i = 0; i < size; i++) {
v8::Local<V8T> v8TypedArray = aliasedBuffer->GetJSArray();
v8::MaybeLocal<v8::Value> v = v8TypedArray->Get(context, i);
EXPECT_TRUE(v.IsEmpty() == false);
v8::Local<v8::Value> v2 = v.ToLocalChecked();
EXPECT_TRUE(v2->IsNumber());
v8::MaybeLocal<v8::Number> v3 = v2->ToNumber(context);
v8::Local<v8::Number> v4 = v3.ToLocalChecked();
NativeT actualValue = static_cast<NativeT>(v4->Value());
EXPECT_TRUE(actualValue == oracle[i]);
}
}
template<class NativeT, class V8T>
void ReadWriteTest(v8::Isolate* isolate) {
v8::Isolate::Scope isolate_scope(isolate);
v8::HandleScope handle_scope(isolate);
v8::Local<v8::Context> context = v8::Context::New(isolate);
v8::Context::Scope context_scope(context);
const size_t size = 100;
AliasedBuffer<NativeT, V8T> ab(isolate, size);
NativeT* oracle = new NativeT[size];
CreateOracleValues(oracle, size);
WriteViaOperator(&ab, size, oracle);
ReadAndValidate(isolate, context, &ab, size, oracle);
WriteViaSetValue(&ab, size, oracle);
// validate copy constructor
{
AliasedBuffer<NativeT, V8T> ab2(ab);
ReadAndValidate(isolate, context, &ab2, size, oracle);
}
ReadAndValidate(isolate, context, &ab, size, oracle);
delete[] oracle;
}
template<
class NativeT_A, class V8T_A,
class NativeT_B, class V8T_B,
class NativeT_C, class V8T_C>
void SharedBufferTest(
v8::Isolate* isolate,
size_t count_A,
size_t count_B,
size_t count_C) {
v8::Isolate::Scope isolate_scope(isolate);
v8::HandleScope handle_scope(isolate);
v8::Local<v8::Context> context = v8::Context::New(isolate);
v8::Context::Scope context_scope(context);
size_t sizeInBytes_A = count_A * sizeof(NativeT_A);
size_t sizeInBytes_B = count_B * sizeof(NativeT_B);
size_t sizeInBytes_C = count_C * sizeof(NativeT_C);
AliasedBuffer<uint8_t, v8::Uint8Array> rootBuffer(
isolate, sizeInBytes_A + sizeInBytes_B + sizeInBytes_C);
AliasedBuffer<NativeT_A, V8T_A> ab_A(
isolate, 0, count_A, rootBuffer);
AliasedBuffer<NativeT_B, V8T_B> ab_B(
isolate, sizeInBytes_A, count_B, rootBuffer);
AliasedBuffer<NativeT_C, V8T_C> ab_C(
isolate, sizeInBytes_A + sizeInBytes_B, count_C, rootBuffer);
NativeT_A* oracle_A = new NativeT_A[count_A];
NativeT_B* oracle_B = new NativeT_B[count_B];
NativeT_C* oracle_C = new NativeT_C[count_C];
CreateOracleValues(oracle_A, count_A);
CreateOracleValues(oracle_B, count_B);
CreateOracleValues(oracle_C, count_C);
WriteViaOperator(&ab_A, count_A, oracle_A);
WriteViaOperator(&ab_B, count_B, oracle_B);
WriteViaOperator(&ab_C, count_C, oracle_C);
ReadAndValidate(isolate, context, &ab_A, count_A, oracle_A);
ReadAndValidate(isolate, context, &ab_B, count_B, oracle_B);
ReadAndValidate(isolate, context, &ab_C, count_C, oracle_C);
WriteViaSetValue(&ab_A, count_A, oracle_A);
WriteViaSetValue(&ab_B, count_B, oracle_B);
WriteViaSetValue(&ab_C, count_C, oracle_C);
ReadAndValidate(isolate, context, &ab_A, count_A, oracle_A);
ReadAndValidate(isolate, context, &ab_B, count_B, oracle_B);
ReadAndValidate(isolate, context, &ab_C, count_C, oracle_C);
}
TEST_F(AliasBufferTest, Uint8Array) {
ReadWriteTest<uint8_t, v8::Uint8Array>(isolate_);
}
TEST_F(AliasBufferTest, Int8Array) {
ReadWriteTest<int8_t, v8::Int8Array>(isolate_);
}
TEST_F(AliasBufferTest, Uint16Array) {
ReadWriteTest<uint16_t, v8::Uint16Array>(isolate_);
}
TEST_F(AliasBufferTest, Int16Array) {
ReadWriteTest<int16_t, v8::Int16Array>(isolate_);
}
TEST_F(AliasBufferTest, Uint32Array) {
ReadWriteTest<uint32_t, v8::Uint32Array>(isolate_);
}
TEST_F(AliasBufferTest, Int32Array) {
ReadWriteTest<int32_t, v8::Int32Array>(isolate_);
}
TEST_F(AliasBufferTest, Float32Array) {
ReadWriteTest<float, v8::Float32Array>(isolate_);
}
TEST_F(AliasBufferTest, Float64Array) {
ReadWriteTest<double, v8::Float64Array>(isolate_);
}
TEST_F(AliasBufferTest, SharedArrayBuffer1) {
SharedBufferTest<
uint32_t, v8::Uint32Array,
double, v8::Float64Array,
int8_t, v8::Int8Array>(isolate_, 100, 80, 8);
}
TEST_F(AliasBufferTest, SharedArrayBuffer2) {
SharedBufferTest<
double, v8::Float64Array,
int8_t, v8::Int8Array,
double, v8::Float64Array>(isolate_, 100, 8, 8);
}
TEST_F(AliasBufferTest, SharedArrayBuffer3) {
SharedBufferTest<
int8_t, v8::Int8Array,
int8_t, v8::Int8Array,
double, v8::Float64Array>(isolate_, 1, 7, 8);
}
TEST_F(AliasBufferTest, SharedArrayBuffer4) {
SharedBufferTest<
int8_t, v8::Int8Array,
int8_t, v8::Int8Array,
int32_t, v8::Int32Array>(isolate_, 1, 3, 1);
}
TEST_F(AliasBufferTest, OperatorOverloads) {
v8::Isolate::Scope isolate_scope(isolate_);
v8::HandleScope handle_scope(isolate_);
v8::Local<v8::Context> context = v8::Context::New(isolate_);
v8::Context::Scope context_scope(context);
const size_t size = 10;
AliasedBuffer<uint32_t, v8::Uint32Array> ab{isolate_, size};
EXPECT_EQ(static_cast<uint32_t>(1), ab[0] = 1);
EXPECT_EQ(static_cast<uint32_t>(4), ab[0] += 3);
EXPECT_EQ(static_cast<uint32_t>(2), ab[0] -= 2);
EXPECT_EQ(static_cast<uint32_t>(-2), -ab[0]);
}
TEST_F(AliasBufferTest, OperatorOverloadsRefs) {
v8::Isolate::Scope isolate_scope(isolate_);
v8::HandleScope handle_scope(isolate_);
v8::Local<v8::Context> context = v8::Context::New(isolate_);
v8::Context::Scope context_scope(context);
AliasedBuffer<uint32_t, v8::Uint32Array> ab{isolate_, 2};
using Reference = AliasedBuffer<uint32_t, v8::Uint32Array>::Reference;
Reference ref = ab[0];
Reference ref_value = ab[1] = 2;
EXPECT_EQ(static_cast<uint32_t>(2), ref = ref_value);
EXPECT_EQ(static_cast<uint32_t>(4), ref += ref_value);
EXPECT_EQ(static_cast<uint32_t>(2), ref -= ref_value);
EXPECT_EQ(static_cast<uint32_t>(-2), -ref);
}
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