1// Copyright (c) 2011 The Chromium 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 "courgette/base_test_unittest.h"
6#include "courgette/courgette.h"
7#include "courgette/streams.h"
8
9class EncodeDecodeTest : public BaseTest {
10 public:
11  void TestAssembleToStreamDisassemble(std::string file,
12                                       size_t expected_encoded_lenth) const;
13};
14
15void EncodeDecodeTest::TestAssembleToStreamDisassemble(
16    std::string file,
17    size_t expected_encoded_lenth) const {
18  const void* original_buffer = file.c_str();
19  size_t original_length = file.length();
20
21  courgette::AssemblyProgram* program = NULL;
22  const courgette::Status parse_status =
23      courgette::ParseDetectedExecutable(original_buffer,
24                                         original_length,
25                                         &program);
26  EXPECT_EQ(courgette::C_OK, parse_status);
27
28  courgette::EncodedProgram* encoded = NULL;
29
30  const courgette::Status encode_status = Encode(program, &encoded);
31  EXPECT_EQ(courgette::C_OK, encode_status);
32
33  DeleteAssemblyProgram(program);
34
35  courgette::SinkStreamSet sinks;
36  const courgette::Status write_status = WriteEncodedProgram(encoded, &sinks);
37  EXPECT_EQ(courgette::C_OK, write_status);
38
39  DeleteEncodedProgram(encoded);
40
41  courgette::SinkStream sink;
42  bool can_collect = sinks.CopyTo(&sink);
43  EXPECT_TRUE(can_collect);
44
45  const void* buffer = sink.Buffer();
46  size_t length = sink.Length();
47
48  EXPECT_EQ(expected_encoded_lenth, length);
49
50  courgette::SourceStreamSet sources;
51  bool can_get_source_streams = sources.Init(buffer, length);
52  EXPECT_TRUE(can_get_source_streams);
53
54  courgette::EncodedProgram *encoded2 = NULL;
55  const courgette::Status read_status = ReadEncodedProgram(&sources, &encoded2);
56  EXPECT_EQ(courgette::C_OK, read_status);
57
58  courgette::SinkStream assembled;
59  const courgette::Status assemble_status = Assemble(encoded2, &assembled);
60  EXPECT_EQ(courgette::C_OK, assemble_status);
61
62  const void* assembled_buffer = assembled.Buffer();
63  size_t assembled_length = assembled.Length();
64
65  EXPECT_EQ(original_length, assembled_length);
66  EXPECT_EQ(0, memcmp(original_buffer, assembled_buffer, original_length));
67
68  DeleteEncodedProgram(encoded2);
69}
70
71TEST_F(EncodeDecodeTest, PE) {
72  std::string file = FileContents("setup1.exe");
73  TestAssembleToStreamDisassemble(file, 971850);
74}
75
76TEST_F(EncodeDecodeTest, PE64) {
77  std::string file = FileContents("chrome64_1.exe");
78  TestAssembleToStreamDisassemble(file, 814709);
79}
80
81TEST_F(EncodeDecodeTest, Elf_Small) {
82  std::string file = FileContents("elf-32-1");
83  TestAssembleToStreamDisassemble(file, 135988);
84}
85