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// Copyright 2016 PDFium 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 "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_boolean.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_name.h"
#include "core/fpdfapi/parser/cpdf_null.h"
#include "core/fpdfapi/parser/cpdf_number.h"
#include "core/fpdfapi/parser/cpdf_reference.h"
#include "core/fpdfapi/parser/cpdf_stream.h"
#include "core/fpdfapi/parser/cpdf_string.h"
#include <memory>
#include <string>
#include <vector>
#include "core/fpdfapi/parser/cpdf_indirect_object_holder.h"
#include "core/fxcrt/fx_basic.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
using ScopedArray = std::unique_ptr<CPDF_Array, ReleaseDeleter<CPDF_Array>>;
using ScopedDict =
std::unique_ptr<CPDF_Dictionary, ReleaseDeleter<CPDF_Dictionary>>;
using ScopedStream = std::unique_ptr<CPDF_Stream, ReleaseDeleter<CPDF_Stream>>;
void TestArrayAccessors(const CPDF_Array* arr,
size_t index,
const char* str_val,
const char* const_str_val,
int int_val,
float float_val,
CPDF_Array* arr_val,
CPDF_Dictionary* dict_val,
CPDF_Stream* stream_val) {
EXPECT_STREQ(str_val, arr->GetStringAt(index).c_str());
EXPECT_EQ(int_val, arr->GetIntegerAt(index));
EXPECT_EQ(float_val, arr->GetNumberAt(index));
EXPECT_EQ(float_val, arr->GetFloatAt(index));
EXPECT_EQ(arr_val, arr->GetArrayAt(index));
EXPECT_EQ(dict_val, arr->GetDictAt(index));
EXPECT_EQ(stream_val, arr->GetStreamAt(index));
}
} // namespace
class PDFObjectsTest : public testing::Test {
public:
void SetUp() override {
// Initialize different kinds of objects.
// Boolean objects.
CPDF_Boolean* boolean_false_obj = new CPDF_Boolean(false);
CPDF_Boolean* boolean_true_obj = new CPDF_Boolean(true);
// Number objects.
CPDF_Number* number_int_obj = new CPDF_Number(1245);
CPDF_Number* number_float_obj = new CPDF_Number(9.00345f);
// String objects.
CPDF_String* str_reg_obj = new CPDF_String(L"A simple test");
CPDF_String* str_spec_obj = new CPDF_String(L"\t\n");
// Name object.
CPDF_Name* name_obj = new CPDF_Name("space");
// Array object.
m_ArrayObj = new CPDF_Array;
m_ArrayObj->InsertAt(0, new CPDF_Number(8902));
m_ArrayObj->InsertAt(1, new CPDF_Name("address"));
// Dictionary object.
m_DictObj = new CPDF_Dictionary();
m_DictObj->SetFor("bool", new CPDF_Boolean(false));
m_DictObj->SetFor("num", new CPDF_Number(0.23f));
// Stream object.
const char content[] = "abcdefghijklmnopqrstuvwxyz";
size_t buf_len = FX_ArraySize(content);
uint8_t* buf = reinterpret_cast<uint8_t*>(malloc(buf_len));
memcpy(buf, content, buf_len);
m_StreamDictObj = new CPDF_Dictionary();
m_StreamDictObj->SetFor("key1", new CPDF_String(L" test dict"));
m_StreamDictObj->SetFor("key2", new CPDF_Number(-1));
CPDF_Stream* stream_obj = new CPDF_Stream(buf, buf_len, m_StreamDictObj);
// Null Object.
CPDF_Null* null_obj = new CPDF_Null;
// All direct objects.
CPDF_Object* objs[] = {boolean_false_obj, boolean_true_obj, number_int_obj,
number_float_obj, str_reg_obj, str_spec_obj,
name_obj, m_ArrayObj, m_DictObj,
stream_obj, null_obj};
m_DirectObjTypes = {
CPDF_Object::BOOLEAN, CPDF_Object::BOOLEAN, CPDF_Object::NUMBER,
CPDF_Object::NUMBER, CPDF_Object::STRING, CPDF_Object::STRING,
CPDF_Object::NAME, CPDF_Object::ARRAY, CPDF_Object::DICTIONARY,
CPDF_Object::STREAM, CPDF_Object::NULLOBJ};
for (size_t i = 0; i < FX_ArraySize(objs); ++i)
m_DirectObjs.emplace_back(objs[i]);
// Indirect references to indirect objects.
m_ObjHolder.reset(new CPDF_IndirectObjectHolder());
m_IndirectObjs = {boolean_true_obj->Clone(), number_int_obj->Clone(),
str_spec_obj->Clone(), name_obj->Clone(),
m_ArrayObj->Clone(), m_DictObj->Clone(),
stream_obj->Clone()};
for (size_t i = 0; i < m_IndirectObjs.size(); ++i) {
m_ObjHolder->AddIndirectObject(m_IndirectObjs[i]);
m_RefObjs.emplace_back(new CPDF_Reference(
m_ObjHolder.get(), m_IndirectObjs[i]->GetObjNum()));
}
}
bool Equal(const CPDF_Object* obj1, const CPDF_Object* obj2) {
if (obj1 == obj2)
return true;
if (!obj1 || !obj2 || obj1->GetType() != obj2->GetType())
return false;
switch (obj1->GetType()) {
case CPDF_Object::BOOLEAN:
return obj1->GetInteger() == obj2->GetInteger();
case CPDF_Object::NUMBER:
return obj1->AsNumber()->IsInteger() == obj2->AsNumber()->IsInteger() &&
obj1->GetInteger() == obj2->GetInteger();
case CPDF_Object::STRING:
case CPDF_Object::NAME:
return obj1->GetString() == obj2->GetString();
case CPDF_Object::ARRAY: {
const CPDF_Array* array1 = obj1->AsArray();
const CPDF_Array* array2 = obj2->AsArray();
if (array1->GetCount() != array2->GetCount())
return false;
for (size_t i = 0; i < array1->GetCount(); ++i) {
if (!Equal(array1->GetObjectAt(i), array2->GetObjectAt(i)))
return false;
}
return true;
}
case CPDF_Object::DICTIONARY: {
const CPDF_Dictionary* dict1 = obj1->AsDictionary();
const CPDF_Dictionary* dict2 = obj2->AsDictionary();
if (dict1->GetCount() != dict2->GetCount())
return false;
for (CPDF_Dictionary::const_iterator it = dict1->begin();
it != dict1->end(); ++it) {
if (!Equal(it->second, dict2->GetObjectFor(it->first)))
return false;
}
return true;
}
case CPDF_Object::NULLOBJ:
return true;
case CPDF_Object::STREAM: {
const CPDF_Stream* stream1 = obj1->AsStream();
const CPDF_Stream* stream2 = obj2->AsStream();
if (!stream1->GetDict() && !stream2->GetDict())
return true;
// Compare dictionaries.
if (!Equal(stream1->GetDict(), stream2->GetDict()))
return false;
// Compare sizes.
if (stream1->GetRawSize() != stream2->GetRawSize())
return false;
// Compare contents.
// Since this function is used for testing Clone(), only memory based
// streams need to be handled.
if (!stream1->IsMemoryBased() || !stream2->IsMemoryBased())
return false;
return FXSYS_memcmp(stream1->GetRawData(), stream2->GetRawData(),
stream1->GetRawSize()) == 0;
}
case CPDF_Object::REFERENCE:
return obj1->AsReference()->GetRefObjNum() ==
obj2->AsReference()->GetRefObjNum();
}
return false;
}
protected:
using ScopedObj = std::unique_ptr<CPDF_Object, ReleaseDeleter<CPDF_Object>>;
// m_ObjHolder needs to be declared first and destructed last since it also
// refers to some objects in m_DirectObjs.
std::unique_ptr<CPDF_IndirectObjectHolder> m_ObjHolder;
std::vector<ScopedObj> m_DirectObjs;
std::vector<int> m_DirectObjTypes;
std::vector<ScopedObj> m_RefObjs;
CPDF_Dictionary* m_DictObj;
CPDF_Dictionary* m_StreamDictObj;
CPDF_Array* m_ArrayObj;
std::vector<CPDF_Object*> m_IndirectObjs;
};
TEST_F(PDFObjectsTest, GetString) {
const char* const direct_obj_results[] = {
"false", "true", "1245", "9.00345", "A simple test", "\t\n", "space",
"", "", "", ""};
// Check for direct objects.
for (size_t i = 0; i < m_DirectObjs.size(); ++i)
EXPECT_STREQ(direct_obj_results[i], m_DirectObjs[i]->GetString().c_str());
// Check indirect references.
const char* const indirect_obj_results[] = {"true", "1245", "\t\n", "space",
"", "", ""};
for (size_t i = 0; i < m_RefObjs.size(); ++i) {
EXPECT_STREQ(indirect_obj_results[i], m_RefObjs[i]->GetString().c_str());
}
}
TEST_F(PDFObjectsTest, GetUnicodeText) {
const wchar_t* const direct_obj_results[] = {
L"", L"", L"", L"", L"A simple test",
L"\t\n", L"space", L"", L"", L"abcdefghijklmnopqrstuvwxyz",
L""};
// Check for direct objects.
for (size_t i = 0; i < m_DirectObjs.size(); ++i) {
EXPECT_STREQ(direct_obj_results[i],
m_DirectObjs[i]->GetUnicodeText().c_str());
}
// Check indirect references.
for (const auto& it : m_RefObjs)
EXPECT_STREQ(L"", it->GetUnicodeText().c_str());
}
TEST_F(PDFObjectsTest, GetNumber) {
const FX_FLOAT direct_obj_results[] = {0, 0, 1245, 9.00345f, 0, 0,
0, 0, 0, 0, 0};
// Check for direct objects.
for (size_t i = 0; i < m_DirectObjs.size(); ++i)
EXPECT_EQ(direct_obj_results[i], m_DirectObjs[i]->GetNumber());
// Check indirect references.
const FX_FLOAT indirect_obj_results[] = {0, 1245, 0, 0, 0, 0, 0};
for (size_t i = 0; i < m_RefObjs.size(); ++i)
EXPECT_EQ(indirect_obj_results[i], m_RefObjs[i]->GetNumber());
}
TEST_F(PDFObjectsTest, GetInteger) {
const int direct_obj_results[] = {0, 1, 1245, 9, 0, 0, 0, 0, 0, 0, 0};
// Check for direct objects.
for (size_t i = 0; i < m_DirectObjs.size(); ++i)
EXPECT_EQ(direct_obj_results[i], m_DirectObjs[i]->GetInteger());
// Check indirect references.
const int indirect_obj_results[] = {1, 1245, 0, 0, 0, 0, 0};
for (size_t i = 0; i < m_RefObjs.size(); ++i)
EXPECT_EQ(indirect_obj_results[i], m_RefObjs[i]->GetInteger());
}
TEST_F(PDFObjectsTest, GetDict) {
const CPDF_Dictionary* const direct_obj_results[] = {
nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
nullptr, nullptr, m_DictObj, m_StreamDictObj, nullptr};
// Check for direct objects.
for (size_t i = 0; i < m_DirectObjs.size(); ++i)
EXPECT_EQ(direct_obj_results[i], m_DirectObjs[i]->GetDict());
// Check indirect references.
const CPDF_Dictionary* const indirect_obj_results[] = {
nullptr, nullptr, nullptr, nullptr, nullptr, m_DictObj, m_StreamDictObj};
for (size_t i = 0; i < m_RefObjs.size(); ++i)
EXPECT_TRUE(Equal(indirect_obj_results[i], m_RefObjs[i]->GetDict()));
}
TEST_F(PDFObjectsTest, GetArray) {
const CPDF_Array* const direct_obj_results[] = {
nullptr, nullptr, nullptr, nullptr, nullptr, nullptr,
nullptr, m_ArrayObj, nullptr, nullptr, nullptr};
// Check for direct objects.
for (size_t i = 0; i < m_DirectObjs.size(); ++i)
EXPECT_EQ(direct_obj_results[i], m_DirectObjs[i]->AsArray());
// Check indirect references.
for (const auto& it : m_RefObjs)
EXPECT_EQ(nullptr, it->AsArray());
}
TEST_F(PDFObjectsTest, Clone) {
// Check for direct objects.
for (size_t i = 0; i < m_DirectObjs.size(); ++i) {
ScopedObj obj(m_DirectObjs[i]->Clone());
EXPECT_TRUE(Equal(m_DirectObjs[i].get(), obj.get()));
}
// Check indirect references.
for (const auto& it : m_RefObjs) {
ScopedObj obj(it->Clone());
EXPECT_TRUE(Equal(it.get(), obj.get()));
}
}
TEST_F(PDFObjectsTest, GetType) {
// Check for direct objects.
for (size_t i = 0; i < m_DirectObjs.size(); ++i)
EXPECT_EQ(m_DirectObjTypes[i], m_DirectObjs[i]->GetType());
// Check indirect references.
for (const auto& it : m_RefObjs)
EXPECT_EQ(CPDF_Object::REFERENCE, it->GetType());
}
TEST_F(PDFObjectsTest, GetDirect) {
// Check for direct objects.
for (size_t i = 0; i < m_DirectObjs.size(); ++i)
EXPECT_EQ(m_DirectObjs[i].get(), m_DirectObjs[i]->GetDirect());
// Check indirect references.
for (size_t i = 0; i < m_RefObjs.size(); ++i)
EXPECT_EQ(m_IndirectObjs[i], m_RefObjs[i]->GetDirect());
}
TEST_F(PDFObjectsTest, SetString) {
// Check for direct objects.
const char* const set_values[] = {"true", "fake", "3.125f", "097",
"changed", "", "NewName"};
const char* const expected[] = {"true", "false", "3.125", "97",
"changed", "", "NewName"};
for (size_t i = 0; i < FX_ArraySize(set_values); ++i) {
m_DirectObjs[i]->SetString(set_values[i]);
EXPECT_STREQ(expected[i], m_DirectObjs[i]->GetString().c_str());
}
}
TEST_F(PDFObjectsTest, IsTypeAndAsType) {
// Check for direct objects.
for (size_t i = 0; i < m_DirectObjs.size(); ++i) {
if (m_DirectObjTypes[i] == CPDF_Object::ARRAY) {
EXPECT_TRUE(m_DirectObjs[i]->IsArray());
EXPECT_EQ(m_DirectObjs[i].get(), m_DirectObjs[i]->AsArray());
} else {
EXPECT_FALSE(m_DirectObjs[i]->IsArray());
EXPECT_EQ(nullptr, m_DirectObjs[i]->AsArray());
}
if (m_DirectObjTypes[i] == CPDF_Object::BOOLEAN) {
EXPECT_TRUE(m_DirectObjs[i]->IsBoolean());
EXPECT_EQ(m_DirectObjs[i].get(), m_DirectObjs[i]->AsBoolean());
} else {
EXPECT_FALSE(m_DirectObjs[i]->IsBoolean());
EXPECT_EQ(nullptr, m_DirectObjs[i]->AsBoolean());
}
if (m_DirectObjTypes[i] == CPDF_Object::NAME) {
EXPECT_TRUE(m_DirectObjs[i]->IsName());
EXPECT_EQ(m_DirectObjs[i].get(), m_DirectObjs[i]->AsName());
} else {
EXPECT_FALSE(m_DirectObjs[i]->IsName());
EXPECT_EQ(nullptr, m_DirectObjs[i]->AsName());
}
if (m_DirectObjTypes[i] == CPDF_Object::NUMBER) {
EXPECT_TRUE(m_DirectObjs[i]->IsNumber());
EXPECT_EQ(m_DirectObjs[i].get(), m_DirectObjs[i]->AsNumber());
} else {
EXPECT_FALSE(m_DirectObjs[i]->IsNumber());
EXPECT_EQ(nullptr, m_DirectObjs[i]->AsNumber());
}
if (m_DirectObjTypes[i] == CPDF_Object::STRING) {
EXPECT_TRUE(m_DirectObjs[i]->IsString());
EXPECT_EQ(m_DirectObjs[i].get(), m_DirectObjs[i]->AsString());
} else {
EXPECT_FALSE(m_DirectObjs[i]->IsString());
EXPECT_EQ(nullptr, m_DirectObjs[i]->AsString());
}
if (m_DirectObjTypes[i] == CPDF_Object::DICTIONARY) {
EXPECT_TRUE(m_DirectObjs[i]->IsDictionary());
EXPECT_EQ(m_DirectObjs[i].get(), m_DirectObjs[i]->AsDictionary());
} else {
EXPECT_FALSE(m_DirectObjs[i]->IsDictionary());
EXPECT_EQ(nullptr, m_DirectObjs[i]->AsDictionary());
}
if (m_DirectObjTypes[i] == CPDF_Object::STREAM) {
EXPECT_TRUE(m_DirectObjs[i]->IsStream());
EXPECT_EQ(m_DirectObjs[i].get(), m_DirectObjs[i]->AsStream());
} else {
EXPECT_FALSE(m_DirectObjs[i]->IsStream());
EXPECT_EQ(nullptr, m_DirectObjs[i]->AsStream());
}
EXPECT_FALSE(m_DirectObjs[i]->IsReference());
EXPECT_EQ(nullptr, m_DirectObjs[i]->AsReference());
}
// Check indirect references.
for (size_t i = 0; i < m_RefObjs.size(); ++i) {
EXPECT_TRUE(m_RefObjs[i]->IsReference());
EXPECT_EQ(m_RefObjs[i].get(), m_RefObjs[i]->AsReference());
}
}
TEST(PDFArrayTest, GetMatrix) {
float elems[][6] = {{0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f},
{1, 2, 3, 4, 5, 6},
{2.3f, 4.05f, 3, -2, -3, 0.0f},
{0.05f, 0.1f, 0.56f, 0.67f, 1.34f, 99.9f}};
for (size_t i = 0; i < FX_ArraySize(elems); ++i) {
ScopedArray arr(new CPDF_Array);
CFX_Matrix matrix(elems[i][0], elems[i][1], elems[i][2], elems[i][3],
elems[i][4], elems[i][5]);
for (size_t j = 0; j < 6; ++j)
arr->AddNumber(elems[i][j]);
CFX_Matrix arr_matrix = arr->GetMatrix();
EXPECT_EQ(matrix.GetA(), arr_matrix.GetA());
EXPECT_EQ(matrix.GetB(), arr_matrix.GetB());
EXPECT_EQ(matrix.GetC(), arr_matrix.GetC());
EXPECT_EQ(matrix.GetD(), arr_matrix.GetD());
EXPECT_EQ(matrix.GetE(), arr_matrix.GetE());
EXPECT_EQ(matrix.GetF(), arr_matrix.GetF());
}
}
TEST(PDFArrayTest, GetRect) {
float elems[][4] = {{0.0f, 0.0f, 0.0f, 0.0f},
{1, 2, 5, 6},
{2.3f, 4.05f, -3, 0.0f},
{0.05f, 0.1f, 1.34f, 99.9f}};
for (size_t i = 0; i < FX_ArraySize(elems); ++i) {
ScopedArray arr(new CPDF_Array);
CFX_FloatRect rect(elems[i]);
for (size_t j = 0; j < 4; ++j)
arr->AddNumber(elems[i][j]);
CFX_FloatRect arr_rect = arr->GetRect();
EXPECT_EQ(rect.left, arr_rect.left);
EXPECT_EQ(rect.right, arr_rect.right);
EXPECT_EQ(rect.bottom, arr_rect.bottom);
EXPECT_EQ(rect.top, arr_rect.top);
}
}
TEST(PDFArrayTest, GetTypeAt) {
{
// Boolean array.
const bool vals[] = {true, false, false, true, true};
ScopedArray arr(new CPDF_Array);
for (size_t i = 0; i < FX_ArraySize(vals); ++i)
arr->InsertAt(i, new CPDF_Boolean(vals[i]));
for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
TestArrayAccessors(arr.get(), i, // Array and index.
vals[i] ? "true" : "false", // String value.
nullptr, // Const string value.
vals[i] ? 1 : 0, // Integer value.
0, // Float value.
nullptr, // Array value.
nullptr, // Dictionary value.
nullptr); // Stream value.
}
}
{
// Integer array.
const int vals[] = {10, 0, -345, 2089345456, -1000000000, 567, 93658767};
ScopedArray arr(new CPDF_Array);
for (size_t i = 0; i < FX_ArraySize(vals); ++i)
arr->InsertAt(i, new CPDF_Number(vals[i]));
for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
char buf[33];
TestArrayAccessors(arr.get(), i, // Array and index.
FXSYS_itoa(vals[i], buf, 10), // String value.
nullptr, // Const string value.
vals[i], // Integer value.
vals[i], // Float value.
nullptr, // Array value.
nullptr, // Dictionary value.
nullptr); // Stream value.
}
}
{
// Float array.
const float vals[] = {0.0f, 0, 10, 10.0f, 0.0345f,
897.34f, -2.5f, -1.0f, -345.0f, -0.0f};
const char* const expected_str[] = {
"0", "0", "10", "10", "0.0345", "897.34", "-2.5", "-1", "-345", "0"};
ScopedArray arr(new CPDF_Array);
for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
arr->InsertAt(i, new CPDF_Number(vals[i]));
}
for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
TestArrayAccessors(arr.get(), i, // Array and index.
expected_str[i], // String value.
nullptr, // Const string value.
vals[i], // Integer value.
vals[i], // Float value.
nullptr, // Array value.
nullptr, // Dictionary value.
nullptr); // Stream value.
}
}
{
// String and name array
const char* const vals[] = {"this", "adsde$%^", "\r\t", "\"012",
".", "EYREW", "It is a joke :)"};
ScopedArray string_array(new CPDF_Array);
ScopedArray name_array(new CPDF_Array);
for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
string_array->InsertAt(i, new CPDF_String(vals[i], false));
name_array->InsertAt(i, new CPDF_Name(vals[i]));
}
for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
TestArrayAccessors(string_array.get(), i, // Array and index.
vals[i], // String value.
vals[i], // Const string value.
0, // Integer value.
0, // Float value.
nullptr, // Array value.
nullptr, // Dictionary value.
nullptr); // Stream value.
TestArrayAccessors(name_array.get(), i, // Array and index.
vals[i], // String value.
vals[i], // Const string value.
0, // Integer value.
0, // Float value.
nullptr, // Array value.
nullptr, // Dictionary value.
nullptr); // Stream value.
}
}
{
// Null element array.
ScopedArray arr(new CPDF_Array);
for (size_t i = 0; i < 3; ++i)
arr->InsertAt(i, new CPDF_Null);
for (size_t i = 0; i < 3; ++i) {
TestArrayAccessors(arr.get(), i, // Array and index.
"", // String value.
nullptr, // Const string value.
0, // Integer value.
0, // Float value.
nullptr, // Array value.
nullptr, // Dictionary value.
nullptr); // Stream value.
}
}
{
// Array of array.
CPDF_Array* vals[3];
ScopedArray arr(new CPDF_Array);
for (size_t i = 0; i < 3; ++i) {
vals[i] = new CPDF_Array;
for (size_t j = 0; j < 3; ++j) {
int value = j + 100;
vals[i]->InsertAt(i, new CPDF_Number(value));
}
arr->InsertAt(i, vals[i]);
}
for (size_t i = 0; i < 3; ++i) {
TestArrayAccessors(arr.get(), i, // Array and index.
"", // String value.
nullptr, // Const string value.
0, // Integer value.
0, // Float value.
vals[i], // Array value.
nullptr, // Dictionary value.
nullptr); // Stream value.
}
}
{
// Dictionary array.
CPDF_Dictionary* vals[3];
ScopedArray arr(new CPDF_Array);
for (size_t i = 0; i < 3; ++i) {
vals[i] = new CPDF_Dictionary();
for (size_t j = 0; j < 3; ++j) {
std::string key("key");
char buf[33];
key.append(FXSYS_itoa(j, buf, 10));
int value = j + 200;
vals[i]->SetFor(key.c_str(), new CPDF_Number(value));
}
arr->InsertAt(i, vals[i]);
}
for (size_t i = 0; i < 3; ++i) {
TestArrayAccessors(arr.get(), i, // Array and index.
"", // String value.
nullptr, // Const string value.
0, // Integer value.
0, // Float value.
nullptr, // Array value.
vals[i], // Dictionary value.
nullptr); // Stream value.
}
}
{
// Stream array.
CPDF_Dictionary* vals[3];
CPDF_Stream* stream_vals[3];
ScopedArray arr(new CPDF_Array);
for (size_t i = 0; i < 3; ++i) {
vals[i] = new CPDF_Dictionary();
for (size_t j = 0; j < 3; ++j) {
std::string key("key");
char buf[33];
key.append(FXSYS_itoa(j, buf, 10));
int value = j + 200;
vals[i]->SetFor(key.c_str(), new CPDF_Number(value));
}
uint8_t content[] = "content: this is a stream";
size_t data_size = FX_ArraySize(content);
uint8_t* data = reinterpret_cast<uint8_t*>(malloc(data_size));
memcpy(data, content, data_size);
stream_vals[i] = new CPDF_Stream(data, data_size, vals[i]);
arr->InsertAt(i, stream_vals[i]);
}
for (size_t i = 0; i < 3; ++i) {
TestArrayAccessors(arr.get(), i, // Array and index.
"", // String value.
nullptr, // Const string value.
0, // Integer value.
0, // Float value.
nullptr, // Array value.
vals[i], // Dictionary value.
stream_vals[i]); // Stream value.
}
}
{
// Mixed array.
ScopedArray arr(new CPDF_Array);
// Array arr will take ownership of all the objects inserted.
arr->InsertAt(0, new CPDF_Boolean(true));
arr->InsertAt(1, new CPDF_Boolean(false));
arr->InsertAt(2, new CPDF_Number(0));
arr->InsertAt(3, new CPDF_Number(-1234));
arr->InsertAt(4, new CPDF_Number(2345.0f));
arr->InsertAt(5, new CPDF_Number(0.05f));
arr->InsertAt(6, new CPDF_String("", false));
arr->InsertAt(7, new CPDF_String("It is a test!", false));
arr->InsertAt(8, new CPDF_Name("NAME"));
arr->InsertAt(9, new CPDF_Name("test"));
arr->InsertAt(10, new CPDF_Null());
CPDF_Array* arr_val = new CPDF_Array;
arr_val->AddNumber(1);
arr_val->AddNumber(2);
arr->InsertAt(11, arr_val);
CPDF_Dictionary* dict_val = new CPDF_Dictionary();
dict_val->SetFor("key1", new CPDF_String("Linda", false));
dict_val->SetFor("key2", new CPDF_String("Zoe", false));
arr->InsertAt(12, dict_val);
CPDF_Dictionary* stream_dict = new CPDF_Dictionary();
stream_dict->SetFor("key1", new CPDF_String("John", false));
stream_dict->SetFor("key2", new CPDF_String("King", false));
uint8_t data[] = "A stream for test";
// The data buffer will be owned by stream object, so it needs to be
// dynamically allocated.
size_t buf_size = sizeof(data);
uint8_t* buf = reinterpret_cast<uint8_t*>(malloc(buf_size));
memcpy(buf, data, buf_size);
CPDF_Stream* stream_val = new CPDF_Stream(buf, buf_size, stream_dict);
arr->InsertAt(13, stream_val);
const char* const expected_str[] = {
"true", "false", "0", "-1234", "2345", "0.05", "",
"It is a test!", "NAME", "test", "", "", "", ""};
const int expected_int[] = {1, 0, 0, -1234, 2345, 0, 0,
0, 0, 0, 0, 0, 0, 0};
const float expected_float[] = {0, 0, 0, -1234, 2345, 0.05f, 0,
0, 0, 0, 0, 0, 0, 0};
for (size_t i = 0; i < arr->GetCount(); ++i) {
EXPECT_STREQ(expected_str[i], arr->GetStringAt(i).c_str());
EXPECT_EQ(expected_int[i], arr->GetIntegerAt(i));
EXPECT_EQ(expected_float[i], arr->GetNumberAt(i));
EXPECT_EQ(expected_float[i], arr->GetFloatAt(i));
if (i == 11)
EXPECT_EQ(arr_val, arr->GetArrayAt(i));
else
EXPECT_EQ(nullptr, arr->GetArrayAt(i));
if (i == 13) {
EXPECT_EQ(stream_dict, arr->GetDictAt(i));
EXPECT_EQ(stream_val, arr->GetStreamAt(i));
} else {
EXPECT_EQ(nullptr, arr->GetStreamAt(i));
if (i == 12)
EXPECT_EQ(dict_val, arr->GetDictAt(i));
else
EXPECT_EQ(nullptr, arr->GetDictAt(i));
}
}
}
}
TEST(PDFArrayTest, AddNumber) {
float vals[] = {1.0f, -1.0f, 0, 0.456734f,
12345.54321f, 0.5f, 1000, 0.000045f};
ScopedArray arr(new CPDF_Array);
for (size_t i = 0; i < FX_ArraySize(vals); ++i)
arr->AddNumber(vals[i]);
for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
EXPECT_EQ(CPDF_Object::NUMBER, arr->GetObjectAt(i)->GetType());
EXPECT_EQ(vals[i], arr->GetObjectAt(i)->GetNumber());
}
}
TEST(PDFArrayTest, AddInteger) {
int vals[] = {0, 1, 934435456, 876, 10000, -1, -24354656, -100};
ScopedArray arr(new CPDF_Array);
for (size_t i = 0; i < FX_ArraySize(vals); ++i)
arr->AddInteger(vals[i]);
for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
EXPECT_EQ(CPDF_Object::NUMBER, arr->GetObjectAt(i)->GetType());
EXPECT_EQ(vals[i], arr->GetObjectAt(i)->GetNumber());
}
}
TEST(PDFArrayTest, AddStringAndName) {
const char* vals[] = {"", "a", "ehjhRIOYTTFdfcdnv", "122323",
"$#%^&**", " ", "This is a test.\r\n"};
ScopedArray string_array(new CPDF_Array);
ScopedArray name_array(new CPDF_Array);
for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
string_array->AddString(vals[i]);
name_array->AddName(vals[i]);
}
for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
EXPECT_EQ(CPDF_Object::STRING, string_array->GetObjectAt(i)->GetType());
EXPECT_STREQ(vals[i], string_array->GetObjectAt(i)->GetString().c_str());
EXPECT_EQ(CPDF_Object::NAME, name_array->GetObjectAt(i)->GetType());
EXPECT_STREQ(vals[i], name_array->GetObjectAt(i)->GetString().c_str());
}
}
TEST(PDFArrayTest, AddReferenceAndGetObjectAt) {
std::unique_ptr<CPDF_IndirectObjectHolder> holder(
new CPDF_IndirectObjectHolder());
CPDF_Boolean* boolean_obj = new CPDF_Boolean(true);
CPDF_Number* int_obj = new CPDF_Number(-1234);
CPDF_Number* float_obj = new CPDF_Number(2345.089f);
CPDF_String* str_obj = new CPDF_String("Adsfdsf 343434 %&&*\n", false);
CPDF_Name* name_obj = new CPDF_Name("Title:");
CPDF_Null* null_obj = new CPDF_Null();
CPDF_Object* indirect_objs[] = {boolean_obj, int_obj, float_obj,
str_obj, name_obj, null_obj};
unsigned int obj_nums[] = {2, 4, 7, 2345, 799887, 1};
ScopedArray arr(new CPDF_Array);
ScopedArray arr1(new CPDF_Array);
// Create two arrays of references by different AddReference() APIs.
for (size_t i = 0; i < FX_ArraySize(indirect_objs); ++i) {
// All the indirect objects inserted will be owned by holder.
holder->ReplaceIndirectObjectIfHigherGeneration(obj_nums[i],
indirect_objs[i]);
arr->AddReference(holder.get(), obj_nums[i]);
arr1->AddReference(holder.get(), indirect_objs[i]->GetObjNum());
}
// Check indirect objects.
for (size_t i = 0; i < FX_ArraySize(obj_nums); ++i)
EXPECT_EQ(indirect_objs[i], holder->GetOrParseIndirectObject(obj_nums[i]));
// Check arrays.
EXPECT_EQ(arr->GetCount(), arr1->GetCount());
for (size_t i = 0; i < arr->GetCount(); ++i) {
EXPECT_EQ(CPDF_Object::REFERENCE, arr->GetObjectAt(i)->GetType());
EXPECT_EQ(indirect_objs[i], arr->GetObjectAt(i)->GetDirect());
EXPECT_EQ(indirect_objs[i], arr->GetDirectObjectAt(i));
EXPECT_EQ(CPDF_Object::REFERENCE, arr1->GetObjectAt(i)->GetType());
EXPECT_EQ(indirect_objs[i], arr1->GetObjectAt(i)->GetDirect());
EXPECT_EQ(indirect_objs[i], arr1->GetDirectObjectAt(i));
}
}
TEST(PDFArrayTest, CloneDirectObject) {
CPDF_IndirectObjectHolder objects_holder;
ScopedArray array(new CPDF_Array);
array->AddReference(&objects_holder, 1234);
ASSERT_EQ(1U, array->GetCount());
CPDF_Object* obj = array->GetObjectAt(0);
ASSERT_TRUE(obj);
EXPECT_TRUE(obj->IsReference());
CPDF_Object* cloned_array_object = array->CloneDirectObject();
ASSERT_TRUE(cloned_array_object);
ASSERT_TRUE(cloned_array_object->IsArray());
ScopedArray cloned_array(cloned_array_object->AsArray());
ASSERT_EQ(1U, cloned_array->GetCount());
CPDF_Object* cloned_obj = cloned_array->GetObjectAt(0);
EXPECT_FALSE(cloned_obj);
}
TEST(PDFArrayTest, ConvertIndirect) {
CPDF_IndirectObjectHolder objects_holder;
ScopedArray array(new CPDF_Array);
CPDF_Object* pObj = new CPDF_Number(42);
array->Add(pObj);
array->ConvertToIndirectObjectAt(0, &objects_holder);
CPDF_Object* pRef = array->GetObjectAt(0);
CPDF_Object* pNum = array->GetDirectObjectAt(0);
EXPECT_TRUE(pRef->IsReference());
EXPECT_TRUE(pNum->IsNumber());
EXPECT_NE(pObj, pRef);
EXPECT_EQ(pObj, pNum);
EXPECT_EQ(42, array->GetIntegerAt(0));
}
TEST(PDFDictionaryTest, CloneDirectObject) {
CPDF_IndirectObjectHolder objects_holder;
ScopedDict dict(new CPDF_Dictionary());
dict->SetReferenceFor("foo", &objects_holder, 1234);
ASSERT_EQ(1U, dict->GetCount());
CPDF_Object* obj = dict->GetObjectFor("foo");
ASSERT_TRUE(obj);
EXPECT_TRUE(obj->IsReference());
CPDF_Object* cloned_dict_object = dict->CloneDirectObject();
ASSERT_TRUE(cloned_dict_object);
ASSERT_TRUE(cloned_dict_object->IsDictionary());
ScopedDict cloned_dict(cloned_dict_object->AsDictionary());
ASSERT_EQ(1U, cloned_dict->GetCount());
CPDF_Object* cloned_obj = cloned_dict->GetObjectFor("foo");
EXPECT_FALSE(cloned_obj);
}
TEST(PDFObjectTest, CloneCheckLoop) {
{
// Create a dictionary/array pair with a reference loop.
CPDF_Dictionary* dict_obj = new CPDF_Dictionary();
ScopedArray arr_obj(new CPDF_Array);
dict_obj->SetFor("arr", arr_obj.get());
arr_obj->InsertAt(0, dict_obj);
// Clone this object to see whether stack overflow will be triggered.
ScopedArray cloned_array(arr_obj->Clone()->AsArray());
// Cloned object should be the same as the original.
ASSERT_TRUE(cloned_array);
EXPECT_EQ(1u, cloned_array->GetCount());
CPDF_Object* cloned_dict = cloned_array->GetObjectAt(0);
ASSERT_TRUE(cloned_dict);
ASSERT_TRUE(cloned_dict->IsDictionary());
// Recursively referenced object is not cloned.
EXPECT_EQ(nullptr, cloned_dict->AsDictionary()->GetObjectFor("arr"));
}
{
// Create a dictionary/stream pair with a reference loop.
CPDF_Dictionary* dict_obj = new CPDF_Dictionary();
ScopedStream stream_obj(new CPDF_Stream(nullptr, 0, dict_obj));
dict_obj->SetFor("stream", stream_obj.get());
// Clone this object to see whether stack overflow will be triggered.
ScopedStream cloned_stream(stream_obj->Clone()->AsStream());
// Cloned object should be the same as the original.
ASSERT_TRUE(cloned_stream);
CPDF_Object* cloned_dict = cloned_stream->GetDict();
ASSERT_TRUE(cloned_dict);
ASSERT_TRUE(cloned_dict->IsDictionary());
// Recursively referenced object is not cloned.
EXPECT_EQ(nullptr, cloned_dict->AsDictionary()->GetObjectFor("stream"));
}
{
CPDF_IndirectObjectHolder objects_holder;
// Create an object with a reference loop.
CPDF_Dictionary* dict_obj = new CPDF_Dictionary();
CPDF_Array* arr_obj = new CPDF_Array;
objects_holder.AddIndirectObject(dict_obj);
EXPECT_EQ(1u, dict_obj->GetObjNum());
dict_obj->SetFor("arr", arr_obj);
arr_obj->InsertAt(
0, new CPDF_Reference(&objects_holder, dict_obj->GetObjNum()));
CPDF_Object* elem0 = arr_obj->GetObjectAt(0);
ASSERT_TRUE(elem0);
ASSERT_TRUE(elem0->IsReference());
EXPECT_EQ(1u, elem0->AsReference()->GetRefObjNum());
EXPECT_EQ(dict_obj, elem0->AsReference()->GetDirect());
// Clone this object to see whether stack overflow will be triggered.
ScopedDict cloned_dict(ToDictionary(dict_obj->CloneDirectObject()));
// Cloned object should be the same as the original.
ASSERT_TRUE(cloned_dict);
CPDF_Object* cloned_arr = cloned_dict->GetObjectFor("arr");
ASSERT_TRUE(cloned_arr);
ASSERT_TRUE(cloned_arr->IsArray());
EXPECT_EQ(1u, cloned_arr->AsArray()->GetCount());
// Recursively referenced object is not cloned.
EXPECT_EQ(nullptr, cloned_arr->AsArray()->GetObjectAt(0));
}
}
TEST(PDFDictionaryTest, ConvertIndirect) {
CPDF_IndirectObjectHolder objects_holder;
ScopedDict dict(new CPDF_Dictionary);
CPDF_Object* pObj = new CPDF_Number(42);
dict->SetFor("clams", pObj);
dict->ConvertToIndirectObjectFor("clams", &objects_holder);
CPDF_Object* pRef = dict->GetObjectFor("clams");
CPDF_Object* pNum = dict->GetDirectObjectFor("clams");
EXPECT_TRUE(pRef->IsReference());
EXPECT_TRUE(pNum->IsNumber());
EXPECT_NE(pObj, pRef);
EXPECT_EQ(pObj, pNum);
EXPECT_EQ(42, dict->GetIntegerFor("clams"));
}