test-api.cc

Google浏览器V8内核代码

  CHECK(try_catch.HasCaught());
  String::AsciiValue exception_value(try_catch.Exception());
  CHECK_EQ(*exception_value, "panama!");
}


bool message_received;


static void check_message(v8::Handle<v8::Message> message,
                          v8::Handle<Value> data) {
  CHECK_EQ(5.76, data->NumberValue());
  CHECK_EQ(6.75, message->GetSourceData()->NumberValue());
  message_received = true;
}


THREADED_TEST(MessageHandlerData) {
  message_received = false;
  v8::HandleScope scope;
  CHECK(!message_received);
  v8::V8::AddMessageListener(check_message, v8_num(5.76));
  LocalContext context;
  v8::ScriptOrigin origin =
      v8::ScriptOrigin(v8_str("6.75"));
  Script::Compile(v8_str("throw 'error'"), &origin)->Run();
  CHECK(message_received);
  // clear out the message listener
  v8::V8::RemoveMessageListeners(check_message);
}


THREADED_TEST(GetSetProperty) {
  v8::HandleScope scope;
  LocalContext context;
  context->Global()->Set(v8_str("foo"), v8_num(14));
  context->Global()->Set(v8_str("12"), v8_num(92));
  context->Global()->Set(v8::Integer::New(16), v8_num(32));
  context->Global()->Set(v8_num(13), v8_num(56));
  Local<Value> foo = Script::Compile(v8_str("this.foo"))->Run();
  CHECK_EQ(14, foo->Int32Value());
  Local<Value> twelve = Script::Compile(v8_str("this[12]"))->Run();
  CHECK_EQ(92, twelve->Int32Value());
  Local<Value> sixteen = Script::Compile(v8_str("this[16]"))->Run();
  CHECK_EQ(32, sixteen->Int32Value());
  Local<Value> thirteen = Script::Compile(v8_str("this[13]"))->Run();
  CHECK_EQ(56, thirteen->Int32Value());
  CHECK_EQ(92, context->Global()->Get(v8::Integer::New(12))->Int32Value());
  CHECK_EQ(92, context->Global()->Get(v8_str("12"))->Int32Value());
  CHECK_EQ(92, context->Global()->Get(v8_num(12))->Int32Value());
  CHECK_EQ(32, context->Global()->Get(v8::Integer::New(16))->Int32Value());
  CHECK_EQ(32, context->Global()->Get(v8_str("16"))->Int32Value());
  CHECK_EQ(32, context->Global()->Get(v8_num(16))->Int32Value());
  CHECK_EQ(56, context->Global()->Get(v8::Integer::New(13))->Int32Value());
  CHECK_EQ(56, context->Global()->Get(v8_str("13"))->Int32Value());
  CHECK_EQ(56, context->Global()->Get(v8_num(13))->Int32Value());
}


THREADED_TEST(PropertyAttributes) {
  v8::HandleScope scope;
  LocalContext context;
  // read-only
  Local<String> prop = v8_str("read_only");
  context->Global()->Set(prop, v8_num(7), v8::ReadOnly);
  CHECK_EQ(7, context->Global()->Get(prop)->Int32Value());
  Script::Compile(v8_str("read_only = 9"))->Run();
  CHECK_EQ(7, context->Global()->Get(prop)->Int32Value());
  context->Global()->Set(prop, v8_num(10));
  CHECK_EQ(7, context->Global()->Get(prop)->Int32Value());
  // dont-delete
  prop = v8_str("dont_delete");
  context->Global()->Set(prop, v8_num(13), v8::DontDelete);
  CHECK_EQ(13, context->Global()->Get(prop)->Int32Value());
  Script::Compile(v8_str("delete dont_delete"))->Run();
  CHECK_EQ(13, context->Global()->Get(prop)->Int32Value());
}


THREADED_TEST(Array) {
  v8::HandleScope scope;
  LocalContext context;
  Local<v8::Array> array = v8::Array::New();
  CHECK_EQ(0, array->Length());
  CHECK(array->Get(v8::Integer::New(0))->IsUndefined());
  CHECK(!array->Has(0));
  CHECK(array->Get(v8::Integer::New(100))->IsUndefined());
  CHECK(!array->Has(100));
  array->Set(v8::Integer::New(2), v8_num(7));
  CHECK_EQ(3, array->Length());
  CHECK(!array->Has(0));
  CHECK(!array->Has(1));
  CHECK(array->Has(2));
  CHECK_EQ(7, array->Get(v8::Integer::New(2))->Int32Value());
  Local<Value> obj = Script::Compile(v8_str("[1, 2, 3]"))->Run();
  Local<v8::Array> arr = Local<v8::Array>::Cast(obj);
  CHECK_EQ(3, arr->Length());
  CHECK_EQ(1, arr->Get(v8::Integer::New(0))->Int32Value());
  CHECK_EQ(2, arr->Get(v8::Integer::New(1))->Int32Value());
  CHECK_EQ(3, arr->Get(v8::Integer::New(2))->Int32Value());
}


v8::Handle<Value> HandleF(const v8::Arguments& args) {
  v8::HandleScope scope;
  ApiTestFuzzer::Fuzz();
  Local<v8::Array> result = v8::Array::New(args.Length());
  for (int i = 0; i < args.Length(); i++)
    result->Set(v8::Integer::New(i), args[i]);
  return scope.Close(result);
}


THREADED_TEST(Vector) {
  v8::HandleScope scope;
  Local<ObjectTemplate> global = ObjectTemplate::New();
  global->Set(v8_str("f"), v8::FunctionTemplate::New(HandleF));
  LocalContext context(0, global);

  const char* fun = "f()";
  Local<v8::Array> a0 =
      Local<v8::Array>::Cast(Script::Compile(String::New(fun))->Run());
  CHECK_EQ(0, a0->Length());

  const char* fun2 = "f(11)";
  Local<v8::Array> a1 =
      Local<v8::Array>::Cast(Script::Compile(String::New(fun2))->Run());
  CHECK_EQ(1, a1->Length());
  CHECK_EQ(11, a1->Get(v8::Integer::New(0))->Int32Value());

  const char* fun3 = "f(12, 13)";
  Local<v8::Array> a2 =
      Local<v8::Array>::Cast(Script::Compile(String::New(fun3))->Run());
  CHECK_EQ(2, a2->Length());
  CHECK_EQ(12, a2->Get(v8::Integer::New(0))->Int32Value());
  CHECK_EQ(13, a2->Get(v8::Integer::New(1))->Int32Value());

  const char* fun4 = "f(14, 15, 16)";
  Local<v8::Array> a3 =
      Local<v8::Array>::Cast(Script::Compile(String::New(fun4))->Run());
  CHECK_EQ(3, a3->Length());
  CHECK_EQ(14, a3->Get(v8::Integer::New(0))->Int32Value());
  CHECK_EQ(15, a3->Get(v8::Integer::New(1))->Int32Value());
  CHECK_EQ(16, a3->Get(v8::Integer::New(2))->Int32Value());

  const char* fun5 = "f(17, 18, 19, 20)";
  Local<v8::Array> a4 =
      Local<v8::Array>::Cast(Script::Compile(String::New(fun5))->Run());
  CHECK_EQ(4, a4->Length());
  CHECK_EQ(17, a4->Get(v8::Integer::New(0))->Int32Value());
  CHECK_EQ(18, a4->Get(v8::Integer::New(1))->Int32Value());
  CHECK_EQ(19, a4->Get(v8::Integer::New(2))->Int32Value());
  CHECK_EQ(20, a4->Get(v8::Integer::New(3))->Int32Value());
}


THREADED_TEST(FunctionCall) {
  v8::HandleScope scope;
  LocalContext context;
  CompileRun(
    "function Foo() {"
    "  var result = [];"
    "  for (var i = 0; i < arguments.length; i++) {"
    "    result.push(arguments[i]);"
    "  }"
    "  return result;"
    "}");
  Local<Function> Foo =
      Local<Function>::Cast(context->Global()->Get(v8_str("Foo")));

  v8::Handle<Value>* args0 = NULL;
  Local<v8::Array> a0 = Local<v8::Array>::Cast(Foo->Call(Foo, 0, args0));
  CHECK_EQ(0, a0->Length());

  v8::Handle<Value> args1[] = { v8_num(1.1) };
  Local<v8::Array> a1 = Local<v8::Array>::Cast(Foo->Call(Foo, 1, args1));
  CHECK_EQ(1, a1->Length());
  CHECK_EQ(1.1, a1->Get(v8::Integer::New(0))->NumberValue());

  v8::Handle<Value> args2[] = { v8_num(2.2),
                                v8_num(3.3) };
  Local<v8::Array> a2 = Local<v8::Array>::Cast(Foo->Call(Foo, 2, args2));
  CHECK_EQ(2, a2->Length());
  CHECK_EQ(2.2, a2->Get(v8::Integer::New(0))->NumberValue());
  CHECK_EQ(3.3, a2->Get(v8::Integer::New(1))->NumberValue());

  v8::Handle<Value> args3[] = { v8_num(4.4),
                                v8_num(5.5),
                                v8_num(6.6) };
  Local<v8::Array> a3 = Local<v8::Array>::Cast(Foo->Call(Foo, 3, args3));
  CHECK_EQ(3, a3->Length());
  CHECK_EQ(4.4, a3->Get(v8::Integer::New(0))->NumberValue());
  CHECK_EQ(5.5, a3->Get(v8::Integer::New(1))->NumberValue());
  CHECK_EQ(6.6, a3->Get(v8::Integer::New(2))->NumberValue());

  v8::Handle<Value> args4[] = { v8_num(7.7),
                                v8_num(8.8),
                                v8_num(9.9),
                                v8_num(10.11) };
  Local<v8::Array> a4 = Local<v8::Array>::Cast(Foo->Call(Foo, 4, args4));
  CHECK_EQ(4, a4->Length());
  CHECK_EQ(7.7, a4->Get(v8::Integer::New(0))->NumberValue());
  CHECK_EQ(8.8, a4->Get(v8::Integer::New(1))->NumberValue());
  CHECK_EQ(9.9, a4->Get(v8::Integer::New(2))->NumberValue());
  CHECK_EQ(10.11, a4->Get(v8::Integer::New(3))->NumberValue());
}


static const char* js_code_causing_out_of_memory =
    "var a = new Array(); while(true) a.push(a);";


// These tests run for a long time and prevent us from running tests
// that come after them so they cannot run in parallel.
TEST(OutOfMemory) {
  // It's not possible to read a snapshot into a heap with different dimensions.
  if (v8::internal::Snapshot::IsEnabled()) return;
  // Set heap limits.
  static const int K = 1024;
  v8::ResourceConstraints constraints;
  constraints.set_max_young_space_size(256 * K);
  constraints.set_max_old_space_size(4 * K * K);
  v8::SetResourceConstraints(&constraints);

  // Execute a script that causes out of memory.
  v8::HandleScope scope;
  LocalContext context;
  v8::V8::IgnoreOutOfMemoryException();
  Local<Script> script =
      Script::Compile(String::New(js_code_causing_out_of_memory));
  Local<Value> result = script->Run();

  // Check for out of memory state.
  CHECK(result.IsEmpty());
  CHECK(context->HasOutOfMemoryException());
}


v8::Handle<Value> ProvokeOutOfMemory(const v8::Arguments& args) {
  ApiTestFuzzer::Fuzz();

  v8::HandleScope scope;
  LocalContext context;
  Local<Script> script =
      Script::Compile(String::New(js_code_causing_out_of_memory));
  Local<Value> result = script->Run();

  // Check for out of memory state.
  CHECK(result.IsEmpty());
  CHECK(context->HasOutOfMemoryException());

  return result;
}


TEST(OutOfMemoryNested) {
  // It's not possible to read a snapshot into a heap with different dimensions.
  if (v8::internal::Snapshot::IsEnabled()) return;
  // Set heap limits.
  static const int K = 1024;
  v8::ResourceConstraints constraints;
  constraints.set_max_young_space_size(256 * K);
  constraints.set_max_old_space_size(4 * K * K);
  v8::SetResourceConstraints(&constraints);

  v8::HandleScope scope;
  Local<ObjectTemplate> templ = ObjectTemplate::New();
  templ->Set(v8_str("ProvokeOutOfMemory"),
             v8::FunctionTemplate::New(ProvokeOutOfMemory));
  LocalContext context(0, templ);
  v8::V8::IgnoreOutOfMemoryException();
  Local<Value> result = CompileRun(
    "var thrown = false;"
    "try {"
    "  ProvokeOutOfMemory();"
    "} catch (e) {"
    "  thrown = true;"
    "}");
  // Check for out of memory state.
  CHECK(result.IsEmpty());
  CHECK(context->HasOutOfMemoryException());
}


TEST(HugeConsStringOutOfMemory) {
  // It's not possible to read a snapshot into a heap with different dimensions.
  if (v8::internal::Snapshot::IsEnabled()) return;
  v8::HandleScope scope;
  LocalContext context;
  // Set heap limits.
  static const int K = 1024;
  v8::ResourceConstraints constraints;
  constraints.set_max_young_space_size(256 * K);
  constraints.set_max_old_space_size(2 * K * K);
  v8::SetResourceConstraints(&constraints);

  // Execute a script that causes out of memory.
  v8::V8::IgnoreOutOfMemoryException();

  // Build huge string. This should fail with out of memory exception.
  Local<Value> result = CompileRun(
    "var str = Array.prototype.join.call({length: 513}, \"A\").toUpperCase();"
    "for (var i = 0; i < 21; i++) { str = str + str; }");

  // Check for out of memory state.
  CHECK(result.IsEmpty());
  CHECK(context->HasOutOfMemoryException());
}


THREADED_TEST(ConstructCall) {
  v8::HandleScope scope;
  LocalContext context;
  CompileRun(
    "function Foo() {"
    "  var result = [];"
    "  for (var i = 0; i < arguments.length; i++) {"
    "    result.push(arguments[i]);"
    "  }"
    "  return result;"
    "}");
  Local<Function> Foo =
      Local<Function>::Cast(context->Global()->Get(v8_str("Foo")));

  v8::Handle<Value>* args0 = NULL;
  Local<v8::Array> a0 = Local<v8::Array>::Cast(Foo->NewInstance(0, args0));
  CHECK_EQ(0, a0->Length());

  v8::Handle<Value> args1[] = { v8_num(1.1) };
  Local<v8::Array> a1 = Local<v8::Array>::Cast(Foo->NewInstance(1, args1));
  CHECK_EQ(1, a1->Length());
  CHECK_EQ(1.1, a1->Get(v8::Integer::New(0))->NumberValue());

  v8::Handle<Value> args2[] = { v8_num(2.2),
                                v8_num(3.3) };
  Local<v8::Array> a2 = Local<v8::Array>::Cast(Foo->NewInstance(2, args2));
  CHECK_EQ(2, a2->Length());
  CHECK_EQ(2.2, a2->Get(v8::Integer::New(0))->NumberValue());
  CHECK_EQ(3.3, a2->Get(v8::Integer::New(1))->NumberValue());

  v8::Handle<Value> args3[] = { v8_num(4.4),
                                v8_num(5.5),
                                v8_num(6.6) };
  Local<v8::Array> a3 = Local<v8::Array>::Cast(Foo->NewInstance(3, args3));
  CHECK_EQ(3, a3->Length());
  CHECK_EQ(4.4, a3->Get(v8::Integer::New(0))->NumberValue());
  CHECK_EQ(5.5, a3->Get(v8::Integer::New(1))->NumberValue());
  CHECK_EQ(6.6, a3->Get(v8::Integer::New(2))->NumberValue());

  v8::Handle<Value> args4[] = { v8_num(7.7),
                                v8_num(8.8),
                                v8_num(9.9),
                                v8_num(10.11) };
  Local<v8::Array> a4 = Local<v8::Array>::Cast(Foo->NewInstance(4, args4));
  CHECK_EQ(4, a4->Length());
  CHECK_EQ(7.7, a4->Get(v8::Integer::New(0))->NumberValue());
  CHECK_EQ(8.8, a4->Get(v8::Integer::New(1))->NumberValue());
  CHECK_EQ(9.9, a4->Get(v8::Integer::New(2))->NumberValue());
  CHECK_EQ(10.11, a4->Get(v8::Integer::New(3))->NumberValue());
}


static void CheckUncle(v8::TryCatch* try_catch) {
  CHECK(try_catch->HasCaught());
  String::AsciiValue str_value(try_catch->Exception());
  CHECK_EQ(*str_value, "uncle?");
  try_catch->Reset();
}


THREADED_TEST(ConversionException) {
  v8::HandleScope scope;
  LocalContext env;
  CompileRun(
    "function TestClass() { };"
    "TestClass.prototype.toString = function () { throw 'uncle?'; };"
    "var obj = new TestClass();");
  Local<Value> obj = env->Global()->Get(v8_str("obj"));

  v8::TryCatch try_catch;

  Local<Value> to_string_result = obj->ToString();
  CHECK(to_string_result.IsEmpty());
  CheckUncle(&try_catch);

  Local<Value> to_number_result = obj->ToNumber();
  CHECK(to_number_result.IsEmpty());
  CheckUncle(&try_catch);

  Local<Value> to_integer_result = obj->ToInteger();
  CHECK(to_integer_result.IsEmpty());
  CheckUncle(&try_catch);

  Local<Value> to_uint32_result = obj->ToUint32();
  CHECK(to_uint32_result.IsEmpty());
  CheckUncle(&try_catch);

  Local<Value> to_int32_result = obj->ToInt32();
  CHECK(to_int32_result.IsEmpty());
  CheckUncle(&try_catch);

  Local<Value> to_object_result = v8::Undefined()->ToObject();
  CHECK(to_object_result.IsEmpty());
  CHECK(try_catch.HasCaught());
  try_catch.Reset();