| // Copyright 2015 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 <cstring> |
| #include <string> |
| |
| #include "../../../../public/fpdfview.h" |
| #include "../../../../testing/fx_string_testhelpers.h" |
| #include "../../../include/fpdfapi/fpdf_parser.h" |
| #include "../../../include/fxcrt/fx_basic.h" |
| #include "../../../testing/embedder_test.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| class FPDFParserDecodeEmbeddertest : public EmbedderTest {}; |
| |
| // NOTE: python's zlib.compress() and zlib.decompress() may be useful for |
| // external validation of the FlateEncode/FlateDecode test cases. |
| |
| #define TEST_CASE(input_literal, expected_literal) \ |
| { \ |
| (const unsigned char*) input_literal, sizeof(input_literal) - 1, \ |
| (const unsigned char*)expected_literal, sizeof(expected_literal) - 1 \ |
| } |
| |
| TEST_F(FPDFParserDecodeEmbeddertest, FlateEncode) { |
| struct FlateEncodeCase { |
| const unsigned char* input; |
| unsigned int input_size; |
| const unsigned char* expected; |
| unsigned int expected_size; |
| } flate_encode_cases[] = { |
| TEST_CASE("", "\x78\x9c\x03\x00\x00\x00\x00\x01"), |
| TEST_CASE(" ", "\x78\x9c\x53\x00\x00\x00\x21\x00\x21"), |
| TEST_CASE("123", "\x78\x9c\x33\x34\x32\x06\x00\01\x2d\x00\x97"), |
| TEST_CASE("\x00\xff", "\x78\x9c\x63\xf8\x0f\x00\x01\x01\x01\x00"), |
| TEST_CASE( |
| "1 0 0 -1 29 763 cm\n0 0 555 735 re\nW n\nq\n0 0 555 734.394 re\n" |
| "W n\nq\n0.8009 0 0 0.8009 0 0 cm\n1 1 1 RG 1 1 1 rg\n/G0 gs\n" |
| "0 0 693 917 re\nf\nQ\nQ\n", |
| "\x78\x9c\x33\x54\x30\x00\x42\x5d\x43\x05\x23\x4b\x05\x73\x33\x63" |
| "\x85\xe4\x5c\x2e\x90\x80\xa9\xa9\xa9\x82\xb9\xb1\xa9\x42\x51\x2a" |
| "\x57\xb8\x42\x1e\x57\x21\x92\xa0\x89\x9e\xb1\xa5\x09\x92\x84\x9e" |
| "\x85\x81\x81\x25\xd8\x14\x24\x26\xd0\x18\x43\x05\x10\x0c\x72\x57" |
| "\x80\x30\x8a\xd2\xb9\xf4\xdd\x0d\x14\xd2\x8b\xc1\x46\x99\x59\x1a" |
| "\x2b\x58\x1a\x9a\x83\x8c\x49\xe3\x0a\x04\x42\x00\x37\x4c\x1b\x42"), |
| }; |
| |
| for (size_t i = 0; i < FX_ArraySize(flate_encode_cases); ++i) { |
| FlateEncodeCase* ptr = &flate_encode_cases[i]; |
| unsigned char* result; |
| unsigned int result_size; |
| FlateEncode(ptr->input, ptr->input_size, result, result_size); |
| ASSERT_TRUE(result); |
| EXPECT_EQ(std::string((const char*)ptr->expected, ptr->expected_size), |
| std::string((const char*)result, result_size)) |
| << " for case " << i; |
| FX_Free(result); |
| } |
| } |
| |
| TEST_F(FPDFParserDecodeEmbeddertest, FlateDecode) { |
| struct FlateDecodeCase { |
| const unsigned char* input; |
| unsigned int input_size; |
| const unsigned char* expected; |
| unsigned int expected_size; |
| } flate_decode_cases[] = { |
| TEST_CASE("", ""), TEST_CASE("preposterous nonsense", ""), |
| TEST_CASE("\x78\x9c\x03\x00\x00\x00\x00\x01", ""), |
| TEST_CASE("\x78\x9c\x53\x00\x00\x00\x21\x00\x21", " "), |
| TEST_CASE("\x78\x9c\x33\x34\x32\x06\x00\01\x2d\x00\x97", "123"), |
| TEST_CASE("\x78\x9c\x63\xf8\x0f\x00\x01\x01\x01\x00", "\x00\xff"), |
| TEST_CASE( |
| "\x78\x9c\x33\x54\x30\x00\x42\x5d\x43\x05\x23\x4b\x05\x73\x33\x63" |
| "\x85\xe4\x5c\x2e\x90\x80\xa9\xa9\xa9\x82\xb9\xb1\xa9\x42\x51\x2a" |
| "\x57\xb8\x42\x1e\x57\x21\x92\xa0\x89\x9e\xb1\xa5\x09\x92\x84\x9e" |
| "\x85\x81\x81\x25\xd8\x14\x24\x26\xd0\x18\x43\x05\x10\x0c\x72\x57" |
| "\x80\x30\x8a\xd2\xb9\xf4\xdd\x0d\x14\xd2\x8b\xc1\x46\x99\x59\x1a" |
| "\x2b\x58\x1a\x9a\x83\x8c\x49\xe3\x0a\x04\x42\x00\x37\x4c\x1b\x42", |
| "1 0 0 -1 29 763 cm\n0 0 555 735 re\nW n\nq\n0 0 555 734.394 re\n" |
| "W n\nq\n0.8009 0 0 0.8009 0 0 cm\n1 1 1 RG 1 1 1 rg\n/G0 gs\n" |
| "0 0 693 917 re\nf\nQ\nQ\n"), |
| }; |
| |
| for (size_t i = 0; i < FX_ArraySize(flate_decode_cases); ++i) { |
| FlateDecodeCase* ptr = &flate_decode_cases[i]; |
| unsigned char* result; |
| unsigned int result_size; |
| FlateDecode(ptr->input, ptr->input_size, result, result_size); |
| ASSERT_TRUE(result); |
| EXPECT_EQ(std::string((const char*)ptr->expected, ptr->expected_size), |
| std::string((const char*)result, result_size)) |
| << " for case " << i; |
| FX_Free(result); |
| } |
| } |
| |
| #undef TEST_CASE |