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//
// Copyright (C) 2010 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "update_engine/payload_generator/full_update_generator.h"
#include <memory>
#include <string>
#include <vector>
#include <gtest/gtest.h>
#include "update_engine/common/test_utils.h"
#include "update_engine/payload_consumer/payload_constants.h"
#include "update_engine/payload_generator/extent_utils.h"
using chromeos_update_engine::test_utils::FillWithData;
using std::string;
using std::vector;
namespace chromeos_update_engine {
class FullUpdateGeneratorTest : public ::testing::Test {
protected:
void SetUp() override {
config_.is_delta = false;
config_.version.minor = kFullPayloadMinorVersion;
config_.hard_chunk_size = 128 * 1024;
config_.block_size = 4096;
new_part_conf.path = part_file_.path();
blob_file_writer_.reset(
new BlobFileWriter(blob_file_.fd(), &out_blobs_length_));
}
PayloadGenerationConfig config_;
PartitionConfig new_part_conf{"part"};
vector<AnnotatedOperation> aops;
// Output file holding the payload blobs.
off_t out_blobs_length_{0};
ScopedTempFile part_file_{"FullUpdateTest_partition.XXXXXX"};
ScopedTempFile blob_file_{"FullUpdateTest_blobs.XXXXXX", true};
std::unique_ptr<BlobFileWriter> blob_file_writer_;
// FullUpdateGenerator under test.
FullUpdateGenerator generator_;
};
TEST_F(FullUpdateGeneratorTest, RunTest) {
brillo::Blob new_part(9 * 1024 * 1024);
FillWithData(&new_part);
new_part_conf.size = new_part.size();
EXPECT_TRUE(test_utils::WriteFileVector(new_part_conf.path, new_part));
EXPECT_TRUE(generator_.GenerateOperations(config_,
new_part_conf, // this is ignored
new_part_conf,
blob_file_writer_.get(),
&aops));
int64_t new_part_chunks = new_part_conf.size / config_.hard_chunk_size;
EXPECT_EQ(new_part_chunks, static_cast<int64_t>(aops.size()));
for (off_t i = 0; i < new_part_chunks; ++i) {
EXPECT_EQ(1, aops[i].op.dst_extents_size());
EXPECT_EQ(
static_cast<uint64_t>(i * config_.hard_chunk_size / config_.block_size),
aops[i].op.dst_extents(0).start_block())
<< "i = " << i;
EXPECT_EQ(config_.hard_chunk_size / config_.block_size,
aops[i].op.dst_extents(0).num_blocks());
if (aops[i].op.type() != InstallOperation::REPLACE) {
EXPECT_EQ(InstallOperation::REPLACE_XZ, aops[i].op.type());
}
}
}
// Test that if the chunk size is not a divisor of the image size, it handles
// correctly the last chunk of the partition.
TEST_F(FullUpdateGeneratorTest, ChunkSizeTooBig) {
config_.hard_chunk_size = 1024 * 1024;
config_.soft_chunk_size = config_.hard_chunk_size;
brillo::Blob new_part(1536 * 1024); // 1.5 MiB
new_part_conf.size = new_part.size();
EXPECT_TRUE(test_utils::WriteFileVector(new_part_conf.path, new_part));
EXPECT_TRUE(generator_.GenerateOperations(config_,
new_part_conf, // this is ignored
new_part_conf,
blob_file_writer_.get(),
&aops));
// new_part has one chunk and a half.
EXPECT_EQ(2U, aops.size());
EXPECT_EQ(config_.hard_chunk_size / config_.block_size,
utils::BlocksInExtents(aops[0].op.dst_extents()));
EXPECT_EQ((new_part.size() - config_.hard_chunk_size) / config_.block_size,
utils::BlocksInExtents(aops[1].op.dst_extents()));
}
// Test that if the image size is much smaller than the chunk size, it handles
// correctly the only chunk of the partition.
TEST_F(FullUpdateGeneratorTest, ImageSizeTooSmall) {
brillo::Blob new_part(16 * 1024);
new_part_conf.size = new_part.size();
EXPECT_TRUE(test_utils::WriteFileVector(new_part_conf.path, new_part));
EXPECT_TRUE(generator_.GenerateOperations(config_,
new_part_conf, // this is ignored
new_part_conf,
blob_file_writer_.get(),
&aops));
// new_part has less than one chunk.
EXPECT_EQ(1U, aops.size());
EXPECT_EQ(new_part.size() / config_.block_size,
utils::BlocksInExtents(aops[0].op.dst_extents()));
}
} // namespace chromeos_update_engine
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