1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
// 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 <memory>
#include <utility>
#include "core/fpdfapi/parser/cpdf_number.h"
#include "core/fpdfapi/parser/cpdf_reference.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/base/ptr_util.h"
TEST(cpdf_array, RemoveAt) {
{
int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
std::unique_ptr<CPDF_Array> arr(new CPDF_Array);
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
arr->AddNew<CPDF_Number>(elems[i]);
arr->RemoveAt(3, 3);
int expected[] = {1, 2, 3, 7, 8, 9, 10};
EXPECT_EQ(FX_ArraySize(expected), arr->GetCount());
for (size_t i = 0; i < FX_ArraySize(expected); ++i)
EXPECT_EQ(expected[i], arr->GetIntegerAt(i));
arr->RemoveAt(4, 2);
int expected2[] = {1, 2, 3, 7, 10};
EXPECT_EQ(FX_ArraySize(expected2), arr->GetCount());
for (size_t i = 0; i < FX_ArraySize(expected2); ++i)
EXPECT_EQ(expected2[i], arr->GetIntegerAt(i));
}
{
// When the range is out of bound, RemoveAt has no effect.
int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
std::unique_ptr<CPDF_Array> arr(new CPDF_Array);
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
arr->AddNew<CPDF_Number>(elems[i]);
arr->RemoveAt(8, 5);
EXPECT_EQ(FX_ArraySize(elems), arr->GetCount());
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
EXPECT_EQ(elems[i], arr->GetIntegerAt(i));
arr->RemoveAt(0, 12);
EXPECT_EQ(FX_ArraySize(elems), arr->GetCount());
arr->RemoveAt(11, 1);
EXPECT_EQ(FX_ArraySize(elems), arr->GetCount());
}
}
TEST(cpdf_array, InsertAt) {
{
int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
auto arr = pdfium::MakeUnique<CPDF_Array>();
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
arr->InsertNewAt<CPDF_Number>(i, elems[i]);
EXPECT_EQ(FX_ArraySize(elems), arr->GetCount());
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
EXPECT_EQ(elems[i], arr->GetIntegerAt(i));
arr->InsertNewAt<CPDF_Number>(3, 33);
arr->InsertNewAt<CPDF_Number>(6, 55);
arr->InsertNewAt<CPDF_Number>(12, 12);
int expected[] = {1, 2, 3, 33, 4, 5, 55, 6, 7, 8, 9, 10, 12};
EXPECT_EQ(FX_ArraySize(expected), arr->GetCount());
for (size_t i = 0; i < FX_ArraySize(expected); ++i)
EXPECT_EQ(expected[i], arr->GetIntegerAt(i));
}
{
// When the position to insert is beyond the upper bound,
// an element is inserted at that position while other unfilled
// positions have nullptr.
int elems[] = {1, 2};
auto arr = pdfium::MakeUnique<CPDF_Array>();
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
arr->InsertNewAt<CPDF_Number>(i, elems[i]);
arr->InsertNewAt<CPDF_Number>(10, 10);
EXPECT_EQ(11u, arr->GetCount());
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
EXPECT_EQ(elems[i], arr->GetIntegerAt(i));
for (size_t i = FX_ArraySize(elems); i < 10; ++i)
EXPECT_EQ(nullptr, arr->GetObjectAt(i));
EXPECT_EQ(10, arr->GetIntegerAt(10));
}
}
TEST(cpdf_array, Clone) {
{
// Basic case.
int elems[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
auto arr = pdfium::MakeUnique<CPDF_Array>();
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
arr->InsertNewAt<CPDF_Number>(i, elems[i]);
std::unique_ptr<CPDF_Array> arr2 = ToArray(arr->Clone());
EXPECT_EQ(arr->GetCount(), arr2->GetCount());
for (size_t i = 0; i < FX_ArraySize(elems); ++i) {
// Clone() always create new objects.
EXPECT_NE(arr->GetObjectAt(i), arr2->GetObjectAt(i));
EXPECT_EQ(arr->GetIntegerAt(i), arr2->GetIntegerAt(i));
}
}
{
// Clone() with and without dereferencing reference objects.
static const size_t kNumOfRows = 3;
static const size_t kNumOfRowElems = 5;
int elems[kNumOfRows][kNumOfRowElems] = {
{1, 2, 3, 4, 5}, {10, 9, 8, 7, 6}, {11, 12, 13, 14, 15}};
std::unique_ptr<CPDF_Array> arr(new CPDF_Array);
// Indirect references to indirect objects.
std::unique_ptr<CPDF_IndirectObjectHolder> obj_holder(
new CPDF_IndirectObjectHolder());
for (size_t i = 0; i < kNumOfRows; ++i) {
auto arr_elem = pdfium::MakeUnique<CPDF_Array>();
for (size_t j = 0; j < kNumOfRowElems; ++j) {
std::unique_ptr<CPDF_Number> obj(new CPDF_Number(elems[i][j]));
// Starts object number from 1.
int obj_num = i * kNumOfRowElems + j + 1;
obj_holder->ReplaceIndirectObjectIfHigherGeneration(obj_num,
std::move(obj));
arr_elem->InsertNewAt<CPDF_Reference>(j, obj_holder.get(), obj_num);
}
arr->InsertAt(i, std::move(arr_elem));
}
ASSERT_EQ(kNumOfRows, arr->GetCount());
// Not dereferencing reference objects means just creating new references
// instead of new copies of direct objects.
std::unique_ptr<CPDF_Array> arr1 = ToArray(arr->Clone());
EXPECT_EQ(arr->GetCount(), arr1->GetCount());
// Dereferencing reference objects creates new copies of direct objects.
std::unique_ptr<CPDF_Array> arr2 = ToArray(arr->CloneDirectObject());
EXPECT_EQ(arr->GetCount(), arr2->GetCount());
for (size_t i = 0; i < kNumOfRows; ++i) {
CPDF_Array* arr_elem = arr->GetObjectAt(i)->AsArray();
CPDF_Array* arr1_elem = arr1->GetObjectAt(i)->AsArray();
CPDF_Array* arr2_elem = arr2->GetObjectAt(i)->AsArray();
EXPECT_NE(arr_elem, arr1_elem);
EXPECT_NE(arr_elem, arr2_elem);
for (size_t j = 0; j < kNumOfRowElems; ++j) {
auto* elem_obj = arr_elem->GetObjectAt(j);
auto* elem_obj1 = arr1_elem->GetObjectAt(j);
auto* elem_obj2 = arr2_elem->GetObjectAt(j);
// Results from not deferencing reference objects.
EXPECT_NE(elem_obj, elem_obj1);
EXPECT_TRUE(elem_obj1->IsReference());
EXPECT_EQ(elem_obj->GetDirect(), elem_obj1->GetDirect());
EXPECT_EQ(elem_obj->GetInteger(), elem_obj1->GetInteger());
// Results from deferencing reference objects.
EXPECT_NE(elem_obj, elem_obj2);
EXPECT_TRUE(elem_obj2->IsNumber());
EXPECT_NE(elem_obj->GetDirect(), elem_obj2);
EXPECT_EQ(elem_obj->GetObjNum(), elem_obj2->GetObjNum());
EXPECT_EQ(elem_obj->GetInteger(), elem_obj2->GetInteger());
}
}
arr.reset();
ASSERT_EQ(kNumOfRows, arr1->GetCount());
for (size_t i = 0; i < kNumOfRows; ++i) {
for (size_t j = 0; j < kNumOfRowElems; ++j) {
// Results from not deferencing reference objects.
auto* elem_obj1 = arr1->GetObjectAt(i)->AsArray()->GetObjectAt(j);
EXPECT_TRUE(elem_obj1->IsReference());
EXPECT_EQ(elems[i][j], elem_obj1->GetInteger());
// Results from deferencing reference objects.
EXPECT_EQ(elems[i][j],
arr2->GetObjectAt(i)->AsArray()->GetIntegerAt(j));
}
}
}
}
TEST(cpdf_array, Iterator) {
const int elems[] = {-23, -11, 3, 455, 2345877,
0, 7895330, -12564334, 10000, -100000};
std::unique_ptr<CPDF_Array> arr(new CPDF_Array);
for (size_t i = 0; i < FX_ArraySize(elems); ++i)
arr->InsertNewAt<CPDF_Number>(i, elems[i]);
size_t index = 0;
for (const auto& it : *arr)
EXPECT_EQ(elems[index++], it->AsNumber()->GetInteger());
}
|
