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//
// Copyright (C) 2019 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/payload_properties.h"
#include <memory>
#include <string>
#include <vector>
#include <base/files/file_util.h>
#include <base/files/scoped_file.h>
#include <base/files/scoped_temp_dir.h>
#include <base/rand_util.h>
#include <base/strings/stringprintf.h>
#include <brillo/data_encoding.h>
#include <gtest/gtest.h>
#include "update_engine/common/hash_calculator.h"
#include "update_engine/common/test_utils.h"
#include "update_engine/common/utils.h"
#include "update_engine/payload_consumer/install_plan.h"
#include "update_engine/payload_generator/delta_diff_generator.h"
#include "update_engine/payload_generator/delta_diff_utils.h"
#include "update_engine/payload_generator/full_update_generator.h"
#include "update_engine/payload_generator/operations_generator.h"
#include "update_engine/payload_generator/payload_file.h"
#include "update_engine/payload_generator/payload_generation_config.h"
using std::string;
using std::unique_ptr;
using std::vector;
namespace chromeos_update_engine {
// TODO(kimjae): current implementation is very specific to a static way of
// producing a deterministic test. It would definitely be beneficial to
// extend the |PayloadPropertiesTest::SetUp()| into a generic helper or
// seperate class that can handle creation of different |PayloadFile|s.
class PayloadPropertiesTest : public ::testing::Test {
protected:
void SetUp() override {
PayloadGenerationConfig config;
config.version.major = kBrilloMajorPayloadVersion;
config.version.minor = kSourceMinorPayloadVersion;
PayloadFile payload;
EXPECT_TRUE(payload.Init(config));
const auto SetupPartitionConfig =
[](PartitionConfig* config, const string& path, size_t size) {
config->path = path;
config->size = size;
};
const auto WriteZerosToFile = [](const char path[], size_t size) {
string zeros(size, '\0');
EXPECT_TRUE(utils::WriteFile(path, zeros.c_str(), zeros.size()));
};
ScopedTempFile old_part_file("old_part.XXXXXX");
ScopedTempFile new_part_file("new_part.XXXXXX");
PartitionConfig old_part(kPartitionNameRoot);
PartitionConfig new_part(kPartitionNameRoot);
SetupPartitionConfig(&old_part, old_part_file.path(), 0);
SetupPartitionConfig(&new_part, new_part_file.path(), 10000);
WriteZerosToFile(old_part_file.path().c_str(), old_part.size);
WriteZerosToFile(new_part_file.path().c_str(), new_part.size);
// Select payload generation strategy based on the config.
unique_ptr<OperationsGenerator> strategy(new FullUpdateGenerator());
vector<AnnotatedOperation> aops;
off_t data_file_size = 0;
ScopedTempFile data_file("temp_data.XXXXXX", true);
BlobFileWriter blob_file_writer(data_file.fd(), &data_file_size);
// Generate the operations using the strategy we selected above.
EXPECT_TRUE(strategy->GenerateOperations(
config, old_part, new_part, &blob_file_writer, &aops));
payload.AddPartition(old_part, new_part, aops, {}, 0);
uint64_t metadata_size;
EXPECT_TRUE(payload.WritePayload(
payload_file_.path(), data_file.path(), "", &metadata_size));
}
ScopedTempFile payload_file_{"payload_file.XXXXXX"};
};
// Validate the hash of file exists within the output.
TEST_F(PayloadPropertiesTest, GetPropertiesAsJsonTestHash) {
constexpr char kJsonProperties[] =
"{"
R"("is_delta":true,)"
R"("metadata_signature":"",)"
R"("metadata_size":165,)"
R"("sha256_hex":"cV7kfZBH3K0B6QJHxxykDh6b6x0WgVOmc63whPLOy7U=",)"
R"("size":211,)"
R"("version":2)"
"}";
string json;
EXPECT_TRUE(
PayloadProperties(payload_file_.path()).GetPropertiesAsJson(&json));
EXPECT_EQ(kJsonProperties, json) << "JSON contents:\n" << json;
}
// Validate the hash of file and metadata are within the output.
TEST_F(PayloadPropertiesTest, GetPropertiesAsKeyValueTestHash) {
constexpr char kKeyValueProperties[] =
"FILE_HASH=cV7kfZBH3K0B6QJHxxykDh6b6x0WgVOmc63whPLOy7U=\n"
"FILE_SIZE=211\n"
"METADATA_HASH=aEKYyzJt2E8Gz8fzB+gmekN5mriotZCSq6R+kDfdeV4=\n"
"METADATA_SIZE=165\n";
string key_value;
EXPECT_TRUE(PayloadProperties{payload_file_.path()}.GetPropertiesAsKeyValue(
&key_value));
EXPECT_EQ(kKeyValueProperties, key_value) << "Key Value contents:\n"
<< key_value;
}
} // namespace chromeos_update_engine
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