1 // Copyright (c) 2012 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/encoded_program.h"
6
7 #include "courgette/streams.h"
8 #include "testing/gtest/include/gtest/gtest.h"
9
TEST(EncodedProgramTest,Test)10 TEST(EncodedProgramTest, Test) {
11 //
12 // Create a simple program with a few addresses and references and
13 // check that the bits produced are as expected.
14 //
15 courgette::EncodedProgram* program = new courgette::EncodedProgram();
16
17 uint32 base = 0x00900000;
18 program->set_image_base(base);
19
20 EXPECT_TRUE(program->DefineRel32Label(5, 0)); // REL32 index 5 == base + 0
21 EXPECT_TRUE(program->DefineAbs32Label(7, 4)); // ABS32 index 7 == base + 4
22 program->EndLabels();
23
24 EXPECT_TRUE(program->AddOrigin(0)); // Start at base.
25 EXPECT_TRUE(program->AddAbs32(7));
26 EXPECT_TRUE(program->AddRel32(5));
27
28 // Serialize and deserialize.
29
30 courgette::SinkStreamSet sinks;
31 EXPECT_TRUE(program->WriteTo(&sinks));
32 delete program;
33
34 courgette::SinkStream sink;
35 bool can_collect = sinks.CopyTo(&sink);
36 EXPECT_TRUE(can_collect);
37
38 const void* buffer = sink.Buffer();
39 size_t length = sink.Length();
40
41 courgette::SourceStreamSet sources;
42 bool can_get_source_streams = sources.Init(buffer, length);
43 EXPECT_TRUE(can_get_source_streams);
44
45 courgette::EncodedProgram *encoded2 = new courgette::EncodedProgram();
46 bool can_read = encoded2->ReadFrom(&sources);
47 EXPECT_TRUE(can_read);
48
49 // Finally, try to assemble.
50 courgette::SinkStream assembled;
51 bool can_assemble = encoded2->AssembleTo(&assembled);
52 EXPECT_TRUE(can_assemble);
53 delete encoded2;
54
55 const void* assembled_buffer = assembled.Buffer();
56 size_t assembled_length = assembled.Length();
57
58 EXPECT_EQ(8U, assembled_length);
59
60 static const uint8 golden[] = {
61 0x04, 0x00, 0x90, 0x00, // ABS32 to base + 4
62 0xF8, 0xFF, 0xFF, 0xFF // REL32 from next line to base + 2
63 };
64
65 EXPECT_EQ(0, memcmp(assembled_buffer, golden, 8));
66 }
67