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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <cmath>
#include "base/memory/scoped_ptr.h"
#include "base/values.h"
#include "content/renderer/v8_value_converter.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "v8/include/v8.h"
class V8ValueConverterTest : public testing::Test {
protected:
virtual void SetUp() {
v8::HandleScope handle_scope;
v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New();
context_ = v8::Context::New(NULL, global);
}
virtual void TearDown() {
context_.Dispose();
}
std::string GetString(DictionaryValue* value, const std::string& key) {
std::string temp;
if (!value->GetString(key, &temp)) {
ADD_FAILURE();
return "";
}
return temp;
}
std::string GetString(v8::Handle<v8::Object> value, const std::string& key) {
v8::Handle<v8::String> temp =
value->Get(v8::String::New(key.c_str())).As<v8::String>();
if (temp.IsEmpty()) {
ADD_FAILURE();
return "";
}
v8::String::Utf8Value utf8(temp);
return std::string(*utf8, utf8.length());
}
std::string GetString(ListValue* value, uint32 index) {
std::string temp;
if (!value->GetString(static_cast<size_t>(index), &temp)) {
ADD_FAILURE();
return "";
}
return temp;
}
std::string GetString(v8::Handle<v8::Array> value, uint32 index) {
v8::Handle<v8::String> temp = value->Get(index).As<v8::String>();
if (temp.IsEmpty()) {
ADD_FAILURE();
return "";
}
v8::String::Utf8Value utf8(temp);
return std::string(*utf8, utf8.length());
}
bool IsNull(DictionaryValue* value, const std::string& key) {
Value* child = NULL;
if (!value->Get(key, &child)) {
ADD_FAILURE();
return false;
}
return child->GetType() == Value::TYPE_NULL;
}
bool IsNull(v8::Handle<v8::Object> value, const std::string& key) {
v8::Handle<v8::Value> child = value->Get(v8::String::New(key.c_str()));
if (child.IsEmpty()) {
ADD_FAILURE();
return false;
}
return child->IsNull();
}
bool IsNull(ListValue* value, uint32 index) {
Value* child = NULL;
if (!value->Get(static_cast<size_t>(index), &child)) {
ADD_FAILURE();
return false;
}
return child->GetType() == Value::TYPE_NULL;
}
bool IsNull(v8::Handle<v8::Array> value, uint32 index) {
v8::Handle<v8::Value> child = value->Get(index);
if (child.IsEmpty()) {
ADD_FAILURE();
return false;
}
return child->IsNull();
}
void TestWeirdType(const V8ValueConverter& converter,
v8::Handle<v8::Value> val,
base::Value::Type expected_type,
Value* expected_value) {
scoped_ptr<Value> raw(converter.FromV8Value(val, context_));
ASSERT_TRUE(raw.get());
EXPECT_EQ(expected_type, raw->GetType());
if (expected_value)
EXPECT_TRUE(expected_value->Equals(raw.get()));
v8::Handle<v8::Object> object(v8::Object::New());
object->Set(v8::String::New("test"), val);
scoped_ptr<DictionaryValue> dictionary(
static_cast<DictionaryValue*>(
converter.FromV8Value(object, context_)));
ASSERT_TRUE(dictionary.get());
Value* temp = NULL;
ASSERT_TRUE(dictionary->Get("test", &temp));
EXPECT_EQ(expected_type, temp->GetType());
if (expected_value)
EXPECT_TRUE(expected_value->Equals(temp));
v8::Handle<v8::Array> array(v8::Array::New());
array->Set(0, val);
scoped_ptr<ListValue> list(
static_cast<ListValue*>(
converter.FromV8Value(array, context_)));
ASSERT_TRUE(list.get());
ASSERT_TRUE(list->Get(0, &temp));
EXPECT_EQ(expected_type, temp->GetType());
if (expected_value)
EXPECT_TRUE(expected_value->Equals(temp));
}
// Context for the JavaScript in the test.
v8::Persistent<v8::Context> context_;
};
TEST_F(V8ValueConverterTest, BasicRoundTrip) {
DictionaryValue original_root;
original_root.Set("null", Value::CreateNullValue());
original_root.Set("true", Value::CreateBooleanValue(true));
original_root.Set("false", Value::CreateBooleanValue(false));
original_root.Set("positive-int", Value::CreateIntegerValue(42));
original_root.Set("negative-int", Value::CreateIntegerValue(-42));
original_root.Set("zero", Value::CreateIntegerValue(0));
original_root.Set("double", Value::CreateDoubleValue(88.8));
original_root.Set("big-integral-double",
Value::CreateDoubleValue(pow(2.0, 53)));
original_root.Set("string", Value::CreateStringValue("foobar"));
original_root.Set("empty-string", Value::CreateStringValue(""));
DictionaryValue* original_sub1 = new DictionaryValue();
original_sub1->Set("foo", Value::CreateStringValue("bar"));
original_sub1->Set("hot", Value::CreateStringValue("dog"));
original_root.Set("dictionary", original_sub1);
original_root.Set("empty-dictionary", new DictionaryValue());
ListValue* original_sub2 = new ListValue();
original_sub2->Append(Value::CreateStringValue("monkey"));
original_sub2->Append(Value::CreateStringValue("balls"));
original_root.Set("list", original_sub2);
original_root.Set("empty-list", new ListValue());
v8::Context::Scope context_scope(context_);
v8::HandleScope handle_scope;
V8ValueConverter converter;
v8::Handle<v8::Object> v8_object =
converter.ToV8Value(&original_root, context_).As<v8::Object>();
ASSERT_FALSE(v8_object.IsEmpty());
EXPECT_EQ(original_root.size(), v8_object->GetPropertyNames()->Length());
EXPECT_TRUE(v8_object->Get(v8::String::New("null"))->IsNull());
EXPECT_TRUE(v8_object->Get(v8::String::New("true"))->IsTrue());
EXPECT_TRUE(v8_object->Get(v8::String::New("false"))->IsFalse());
EXPECT_TRUE(v8_object->Get(v8::String::New("positive-int"))->IsInt32());
EXPECT_TRUE(v8_object->Get(v8::String::New("negative-int"))->IsInt32());
EXPECT_TRUE(v8_object->Get(v8::String::New("zero"))->IsInt32());
EXPECT_TRUE(v8_object->Get(v8::String::New("double"))->IsNumber());
EXPECT_TRUE(
v8_object->Get(v8::String::New("big-integral-double"))->IsNumber());
EXPECT_TRUE(v8_object->Get(v8::String::New("string"))->IsString());
EXPECT_TRUE(v8_object->Get(v8::String::New("empty-string"))->IsString());
EXPECT_TRUE(v8_object->Get(v8::String::New("dictionary"))->IsObject());
EXPECT_TRUE(v8_object->Get(v8::String::New("empty-dictionary"))->IsObject());
EXPECT_TRUE(v8_object->Get(v8::String::New("list"))->IsArray());
EXPECT_TRUE(v8_object->Get(v8::String::New("empty-list"))->IsArray());
scoped_ptr<Value> new_root(converter.FromV8Value(v8_object, context_));
EXPECT_NE(&original_root, new_root.get());
EXPECT_TRUE(original_root.Equals(new_root.get()));
}
TEST_F(V8ValueConverterTest, KeysWithDots) {
DictionaryValue original;
original.SetWithoutPathExpansion("foo.bar", Value::CreateStringValue("baz"));
v8::Context::Scope context_scope(context_);
v8::HandleScope handle_scope;
V8ValueConverter converter;
scoped_ptr<Value> copy(
converter.FromV8Value(
converter.ToV8Value(&original, context_), context_));
EXPECT_TRUE(original.Equals(copy.get()));
}
TEST_F(V8ValueConverterTest, ObjectExceptions) {
v8::Context::Scope context_scope(context_);
v8::HandleScope handle_scope;
// Set up objects to throw when reading or writing 'foo'.
const char* source =
"Object.prototype.__defineSetter__('foo', "
" function() { throw new Error('muah!'); });"
"Object.prototype.__defineGetter__('foo', "
" function() { throw new Error('muah!'); });";
v8::Handle<v8::Script> script(v8::Script::New(v8::String::New(source)));
script->Run();
v8::Handle<v8::Object> object(v8::Object::New());
object->Set(v8::String::New("bar"), v8::String::New("bar"));
// Converting from v8 value should replace the foo property with null.
V8ValueConverter converter;
scoped_ptr<DictionaryValue> converted(static_cast<DictionaryValue*>(
converter.FromV8Value(object, context_)));
EXPECT_TRUE(converted.get());
// http://code.google.com/p/v8/issues/detail?id=1342
// EXPECT_EQ(2u, converted->size());
// EXPECT_TRUE(IsNull(converted.get(), "foo"));
EXPECT_EQ(1u, converted->size());
EXPECT_EQ("bar", GetString(converted.get(), "bar"));
// Converting to v8 value should drop the foo property.
converted->SetString("foo", "foo");
v8::Handle<v8::Object> copy =
converter.ToV8Value(converted.get(), context_).As<v8::Object>();
EXPECT_FALSE(copy.IsEmpty());
EXPECT_EQ(2u, copy->GetPropertyNames()->Length());
EXPECT_EQ("bar", GetString(copy, "bar"));
}
TEST_F(V8ValueConverterTest, ArrayExceptions) {
v8::Context::Scope context_scope(context_);
v8::HandleScope handle_scope;
const char* source = "(function() {"
"var arr = [];"
"arr.__defineSetter__(0, "
" function() { throw new Error('muah!'); });"
"arr.__defineGetter__(0, "
" function() { throw new Error('muah!'); });"
"arr[1] = 'bar';"
"return arr;"
"})();";
v8::Handle<v8::Script> script(v8::Script::New(v8::String::New(source)));
v8::Handle<v8::Array> array = script->Run().As<v8::Array>();
ASSERT_FALSE(array.IsEmpty());
// Converting from v8 value should replace the first item with null.
V8ValueConverter converter;
scoped_ptr<ListValue> converted(static_cast<ListValue*>(
converter.FromV8Value(array, context_)));
ASSERT_TRUE(converted.get());
// http://code.google.com/p/v8/issues/detail?id=1342
EXPECT_EQ(2u, converted->GetSize());
EXPECT_TRUE(IsNull(converted.get(), 0));
// Converting to v8 value should drop the first item and leave a hole.
converted.reset(new ListValue());
converted->Append(Value::CreateStringValue("foo"));
converted->Append(Value::CreateStringValue("bar"));
v8::Handle<v8::Array> copy =
converter.ToV8Value(converted.get(), context_).As<v8::Array>();
ASSERT_FALSE(copy.IsEmpty());
EXPECT_EQ(2u, copy->Length());
EXPECT_EQ("bar", GetString(copy, 1));
}
TEST_F(V8ValueConverterTest, WeirdTypes) {
v8::Context::Scope context_scope(context_);
v8::HandleScope handle_scope;
v8::Handle<v8::RegExp> regex(
v8::RegExp::New(v8::String::New("."), v8::RegExp::kNone));
V8ValueConverter converter;
TestWeirdType(converter, v8::Undefined(), Value::TYPE_NULL, NULL);
TestWeirdType(converter, v8::Date::New(1000), Value::TYPE_DICTIONARY, NULL);
TestWeirdType(converter, regex, Value::TYPE_DICTIONARY, NULL);
converter.set_allow_undefined(true);
TestWeirdType(converter, v8::Undefined(), Value::TYPE_NULL, NULL);
converter.set_allow_date(true);
TestWeirdType(converter, v8::Date::New(1000), Value::TYPE_DOUBLE,
Value::CreateDoubleValue(1));
converter.set_allow_regexp(true);
TestWeirdType(converter, regex, Value::TYPE_STRING,
Value::CreateStringValue("/./"));
}
TEST_F(V8ValueConverterTest, Prototype) {
v8::Context::Scope context_scope(context_);
v8::HandleScope handle_scope;
const char* source = "(function() {"
"Object.prototype.foo = 'foo';"
"return {};"
"})();";
v8::Handle<v8::Script> script(v8::Script::New(v8::String::New(source)));
v8::Handle<v8::Object> object = script->Run().As<v8::Object>();
ASSERT_FALSE(object.IsEmpty());
V8ValueConverter converter;
scoped_ptr<DictionaryValue> result(
static_cast<DictionaryValue*>(converter.FromV8Value(object, context_)));
ASSERT_TRUE(result.get());
EXPECT_EQ(0u, result->size());
}