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| 1 // Copyright 2015 PDFium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include <cstring> |
| 6 #include <string> |
| 7 |
| 8 #include "../../../../fpdfsdk/include/fpdfview.h" |
| 9 #include "../../../../testing/fx_string_testhelpers.h" |
| 10 #include "../../../include/fxcrt/fx_basic.h" |
| 11 #include "../../../include/fpdfapi/fpdf_parser.h" |
| 12 #include "testing/gtest/include/gtest/gtest.h" |
| 13 |
| 14 // NOTE: python's zlib.compress() and zlib.decompress() may be useful for |
| 15 // external validation of the FlateEncode/FlateDecode test cases. |
| 16 |
| 17 #define TEST_CASE(input_literal, expected_literal) \ |
| 18 { (const unsigned char*)input_literal, sizeof(input_literal) - 1, \ |
| 19 (const unsigned char*)expected_literal, sizeof(expected_literal) - 1 } |
| 20 |
| 21 TEST(ParserDecode, FlateEncode) { |
| 22 struct FlateEncodeCase { |
| 23 const unsigned char* input; |
| 24 unsigned int input_size; |
| 25 const unsigned char* expected; |
| 26 unsigned int expected_size; |
| 27 } flate_encode_cases[] = { |
| 28 TEST_CASE("", "\x78\x9c\x03\x00\x00\x00\x00\x01"), |
| 29 TEST_CASE(" ", "\x78\x9c\x53\x00\x00\x00\x21\x00\x21"), |
| 30 TEST_CASE("123", "\x78\x9c\x33\x34\x32\x06\x00\01\x2d\x00\x97"), |
| 31 TEST_CASE("\x00\xff", "\x78\x9c\x63\xf8\x0f\x00\x01\x01\x01\x00"), |
| 32 TEST_CASE("1 0 0 -1 29 763 cm\n0 0 555 735 re\nW n\nq\n0 0 555 734.394 re\n" |
| 33 "W n\nq\n0.8009 0 0 0.8009 0 0 cm\n1 1 1 RG 1 1 1 rg\n/G0 gs\n" |
| 34 "0 0 693 917 re\nf\nQ\nQ\n" |
| 35 , |
| 36 "\x78\x9c\x33\x54\x30\x00\x42\x5d\x43\x05\x23\x4b\x05\x73\x33\x63" |
| 37 "\x85\xe4\x5c\x2e\x90\x80\xa9\xa9\xa9\x82\xb9\xb1\xa9\x42\x51\x2a" |
| 38 "\x57\xb8\x42\x1e\x57\x21\x92\xa0\x89\x9e\xb1\xa5\x09\x92\x84\x9e" |
| 39 "\x85\x81\x81\x25\xd8\x14\x24\x26\xd0\x18\x43\x05\x10\x0c\x72\x57" |
| 40 "\x80\x30\x8a\xd2\xb9\xf4\xdd\x0d\x14\xd2\x8b\xc1\x46\x99\x59\x1a" |
| 41 "\x2b\x58\x1a\x9a\x83\x8c\x49\xe3\x0a\x04\x42\x00\x37\x4c\x1b\x42" |
| 42 ), |
| 43 }; |
| 44 |
| 45 FPDF_InitLibrary(); |
| 46 for (size_t i = 0; i < FX_ArraySize(flate_encode_cases); ++i) { |
| 47 FlateEncodeCase* ptr = &flate_encode_cases[i]; |
| 48 unsigned char* result; |
| 49 unsigned int result_size; |
| 50 FlateEncode(ptr->input, ptr->input_size, result, result_size); // Leaks. |
| 51 EXPECT_EQ(std::string((const char*)ptr->expected, ptr->expected_size), |
| 52 std::string((const char*)result, result_size)) |
| 53 << " for case " << i; |
| 54 } |
| 55 FPDF_DestroyLibrary(); |
| 56 } |
| 57 |
| 58 TEST(ParserDecode, FlateDecode) { |
| 59 struct FlateDecodeCase { |
| 60 const unsigned char* input; |
| 61 unsigned int input_size; |
| 62 const unsigned char* expected; |
| 63 unsigned int expected_size; |
| 64 } flate_decode_cases[] = { |
| 65 TEST_CASE("", ""), |
| 66 TEST_CASE("preposterous nonsense", ""), |
| 67 TEST_CASE("\x78\x9c\x03\x00\x00\x00\x00\x01", ""), |
| 68 TEST_CASE("\x78\x9c\x53\x00\x00\x00\x21\x00\x21", " "), |
| 69 TEST_CASE("\x78\x9c\x33\x34\x32\x06\x00\01\x2d\x00\x97", "123"), |
| 70 TEST_CASE("\x78\x9c\x63\xf8\x0f\x00\x01\x01\x01\x00", "\x00\xff"), |
| 71 TEST_CASE("\x78\x9c\x33\x54\x30\x00\x42\x5d\x43\x05\x23\x4b\x05\x73\x33\x63" |
| 72 "\x85\xe4\x5c\x2e\x90\x80\xa9\xa9\xa9\x82\xb9\xb1\xa9\x42\x51\x2a" |
| 73 "\x57\xb8\x42\x1e\x57\x21\x92\xa0\x89\x9e\xb1\xa5\x09\x92\x84\x9e" |
| 74 "\x85\x81\x81\x25\xd8\x14\x24\x26\xd0\x18\x43\x05\x10\x0c\x72\x57" |
| 75 "\x80\x30\x8a\xd2\xb9\xf4\xdd\x0d\x14\xd2\x8b\xc1\x46\x99\x59\x1a" |
| 76 "\x2b\x58\x1a\x9a\x83\x8c\x49\xe3\x0a\x04\x42\x00\x37\x4c\x1b\x42" |
| 77 , |
| 78 "1 0 0 -1 29 763 cm\n0 0 555 735 re\nW n\nq\n0 0 555 734.394 re\n" |
| 79 "W n\nq\n0.8009 0 0 0.8009 0 0 cm\n1 1 1 RG 1 1 1 rg\n/G0 gs\n" |
| 80 "0 0 693 917 re\nf\nQ\nQ\n" |
| 81 ), |
| 82 }; |
| 83 |
| 84 FPDF_InitLibrary(); |
| 85 for (size_t i = 0; i < FX_ArraySize(flate_decode_cases); ++i) { |
| 86 FlateDecodeCase* ptr = &flate_decode_cases[i]; |
| 87 unsigned char* result; |
| 88 unsigned int result_size; |
| 89 FlateDecode(ptr->input, ptr->input_size, result, result_size); // Leaks. |
| 90 EXPECT_EQ(std::string((const char*)ptr->expected, ptr->expected_size), |
| 91 std::string((const char*)result, result_size)) |
| 92 << " for case " << i; |
| 93 } |
| 94 FPDF_DestroyLibrary(); |
| 95 } |
| 96 |
| 97 |
| 98 #undef TEST_CASE |
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