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// Copyright (c) 2012 The Chromium 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 "courgette/encoded_program.h"
#include "courgette/streams.h"
#include "testing/gtest/include/gtest/gtest.h"
TEST(EncodedProgramTest, Test) {
//
// Create a simple program with a few addresses and references and
// check that the bits produced are as expected.
//
courgette::EncodedProgram* program = new courgette::EncodedProgram();
uint32 base = 0x00900000;
program->set_image_base(base);
EXPECT_TRUE(program->DefineRel32Label(5, 0)); // REL32 index 5 == base + 0
EXPECT_TRUE(program->DefineAbs32Label(7, 4)); // ABS32 index 7 == base + 4
program->EndLabels();
EXPECT_TRUE(program->AddOrigin(0)); // Start at base.
EXPECT_TRUE(program->AddAbs32(7));
EXPECT_TRUE(program->AddRel32(5));
// Serialize and deserialize.
courgette::SinkStreamSet sinks;
EXPECT_TRUE(program->WriteTo(&sinks));
delete program;
courgette::SinkStream sink;
bool can_collect = sinks.CopyTo(&sink);
EXPECT_TRUE(can_collect);
const void* buffer = sink.Buffer();
size_t length = sink.Length();
courgette::SourceStreamSet sources;
bool can_get_source_streams = sources.Init(buffer, length);
EXPECT_TRUE(can_get_source_streams);
courgette::EncodedProgram *encoded2 = new courgette::EncodedProgram();
bool can_read = encoded2->ReadFrom(&sources);
EXPECT_TRUE(can_read);
// Finally, try to assemble.
courgette::SinkStream assembled;
bool can_assemble = encoded2->AssembleTo(&assembled);
EXPECT_TRUE(can_assemble);
delete encoded2;
const void* assembled_buffer = assembled.Buffer();
size_t assembled_length = assembled.Length();
EXPECT_EQ(8U, assembled_length);
static const uint8 golden[] = {
0x04, 0x00, 0x90, 0x00, // ABS32 to base + 4
0xF8, 0xFF, 0xFF, 0xFF // REL32 from next line to base + 2
};
EXPECT_EQ(0, memcmp(assembled_buffer, golden, 8));
}
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