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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 "snapshot_metadata_updater.h"
#include <memory>
#include <string>
#include <android-base/properties.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <liblp/builder.h>
#include <storage_literals/storage_literals.h>
#include <libsnapshot/test_helpers.h>
using namespace android::storage_literals;
using android::fs_mgr::LpMetadata;
using android::fs_mgr::MetadataBuilder;
using android::fs_mgr::SlotSuffixForSlotNumber;
using chromeos_update_engine::DeltaArchiveManifest;
using chromeos_update_engine::DynamicPartitionGroup;
using chromeos_update_engine::PartitionUpdate;
using testing::AssertionFailure;
using testing::AssertionResult;
using testing::AssertionSuccess;
namespace android {
namespace snapshot {
class SnapshotMetadataUpdaterTest : public ::testing::TestWithParam<uint32_t> {
public:
SnapshotMetadataUpdaterTest() = default;
void SetUp() override {
SKIP_IF_NON_VIRTUAL_AB();
target_slot_ = GetParam();
target_suffix_ = SlotSuffixForSlotNumber(target_slot_);
SnapshotTestPropertyFetcher::SetUp(SlotSuffixForSlotNumber(1 - target_slot_));
builder_ = MetadataBuilder::New(4_GiB + 1_MiB, 4_KiB, 2);
group_ = manifest_.mutable_dynamic_partition_metadata()->add_groups();
group_->set_name("group");
group_->set_size(4_GiB);
group_->add_partition_names("system");
group_->add_partition_names("vendor");
system_ = manifest_.add_partitions();
system_->set_partition_name("system");
SetSize(system_, 2_GiB);
vendor_ = manifest_.add_partitions();
vendor_->set_partition_name("vendor");
SetSize(vendor_, 1_GiB);
ASSERT_TRUE(FillFakeMetadata(builder_.get(), manifest_, target_suffix_));
}
void TearDown() override {
RETURN_IF_NON_VIRTUAL_AB();
SnapshotTestPropertyFetcher::TearDown();
}
// Append suffix to name.
std::string T(std::string_view name) { return std::string(name) + target_suffix_; }
AssertionResult UpdateAndExport() {
SnapshotMetadataUpdater updater(builder_.get(), target_slot_, manifest_);
if (!updater.Update()) {
return AssertionFailure() << "Update failed.";
}
exported_ = builder_->Export();
if (exported_ == nullptr) {
return AssertionFailure() << "Export failed.";
}
return AssertionSuccess();
}
// Check that in |builder_|, partition |name| + |target_suffix_| has the given |size|.
AssertionResult CheckSize(std::string_view name, uint64_t size) {
auto p = builder_->FindPartition(T(name));
if (p == nullptr) {
return AssertionFailure() << "Cannot find partition " << T(name);
}
if (p->size() != size) {
return AssertionFailure() << "Partition " << T(name) << " should be " << size
<< " bytes, but is " << p->size() << " bytes.";
}
return AssertionSuccess() << "Partition" << T(name) << " is " << size << " bytes.";
}
// Check that in |builder_|, group |name| + |target_suffix_| has the given |size|.
AssertionResult CheckGroupSize(std::string_view name, uint64_t size) {
auto g = builder_->FindGroup(T(name));
if (g == nullptr) {
return AssertionFailure() << "Cannot find group " << T(name);
}
if (g->maximum_size() != size) {
return AssertionFailure() << "Group " << T(name) << " should be " << size
<< " bytes, but is " << g->maximum_size() << " bytes.";
}
return AssertionSuccess() << "Group" << T(name) << " is " << size << " bytes.";
}
// Check that in |builder_|, partition |partition_name| + |target_suffix_| is in group
// |group_name| + |target_suffix_|;
AssertionResult CheckGroupName(std::string_view partition_name, std::string_view group_name) {
auto p = builder_->FindPartition(T(partition_name));
if (p == nullptr) {
return AssertionFailure() << "Cannot find partition " << T(partition_name);
}
if (p->group_name() != T(group_name)) {
return AssertionFailure() << "Partition " << T(partition_name) << " should be in "
<< T(group_name) << ", but is in " << p->group_name() << ".";
}
return AssertionSuccess() << "Partition" << T(partition_name) << " is in " << T(group_name)
<< ".";
}
std::unique_ptr<MetadataBuilder> builder_;
uint32_t target_slot_;
std::string target_suffix_;
DeltaArchiveManifest manifest_;
std::unique_ptr<LpMetadata> exported_;
DynamicPartitionGroup* group_ = nullptr;
PartitionUpdate* system_ = nullptr;
PartitionUpdate* vendor_ = nullptr;
};
TEST_P(SnapshotMetadataUpdaterTest, NoChange) {
EXPECT_TRUE(UpdateAndExport());
EXPECT_TRUE(CheckGroupSize("group", 4_GiB));
EXPECT_TRUE(CheckSize("system", 2_GiB));
EXPECT_TRUE(CheckGroupName("system", "group"));
EXPECT_TRUE(CheckSize("vendor", 1_GiB));
EXPECT_TRUE(CheckGroupName("vendor", "group"));
}
TEST_P(SnapshotMetadataUpdaterTest, GrowWithinBounds) {
SetSize(system_, 2_GiB + 512_MiB);
SetSize(vendor_, 1_GiB + 512_MiB);
ASSERT_TRUE(UpdateAndExport());
EXPECT_TRUE(CheckSize("system", 2_GiB + 512_MiB));
EXPECT_TRUE(CheckSize("vendor", 1_GiB + 512_MiB));
}
TEST_P(SnapshotMetadataUpdaterTest, GrowOverSuper) {
SetSize(system_, 3_GiB);
SetSize(vendor_, 1_GiB + 512_MiB);
EXPECT_FALSE(UpdateAndExport());
}
TEST_P(SnapshotMetadataUpdaterTest, GrowOverGroup) {
SetSize(system_, 3_GiB);
SetSize(vendor_, 1_GiB + 4_KiB);
EXPECT_FALSE(UpdateAndExport());
}
TEST_P(SnapshotMetadataUpdaterTest, Add) {
group_->add_partition_names("product");
auto product = manifest_.add_partitions();
product->set_partition_name("product");
SetSize(product, 1_GiB);
EXPECT_TRUE(UpdateAndExport());
EXPECT_TRUE(CheckSize("system", 2_GiB));
EXPECT_TRUE(CheckSize("vendor", 1_GiB));
EXPECT_TRUE(CheckSize("product", 1_GiB));
}
TEST_P(SnapshotMetadataUpdaterTest, AddTooBig) {
group_->add_partition_names("product");
auto product = manifest_.add_partitions();
product->set_partition_name("product");
SetSize(product, 1_GiB + 4_KiB);
EXPECT_FALSE(UpdateAndExport());
}
TEST_P(SnapshotMetadataUpdaterTest, ShrinkAll) {
SetSize(system_, 1_GiB);
SetSize(vendor_, 512_MiB);
ASSERT_TRUE(UpdateAndExport());
EXPECT_TRUE(CheckSize("system", 1_GiB));
EXPECT_TRUE(CheckSize("vendor", 512_MiB));
}
TEST_P(SnapshotMetadataUpdaterTest, ShrinkAndGrow) {
SetSize(system_, 3_GiB + 512_MiB);
SetSize(vendor_, 512_MiB);
ASSERT_TRUE(UpdateAndExport());
EXPECT_TRUE(CheckSize("system", 3_GiB + 512_MiB));
EXPECT_TRUE(CheckSize("vendor", 512_MiB));
}
TEST_P(SnapshotMetadataUpdaterTest, ShrinkAndAdd) {
SetSize(system_, 2_GiB);
SetSize(vendor_, 512_MiB);
group_->add_partition_names("product");
auto product = manifest_.add_partitions();
product->set_partition_name("product");
SetSize(product, 1_GiB + 512_MiB);
ASSERT_TRUE(UpdateAndExport());
EXPECT_TRUE(CheckSize("system", 2_GiB));
EXPECT_TRUE(CheckSize("vendor", 512_MiB));
EXPECT_TRUE(CheckSize("product", 1_GiB + 512_MiB));
}
TEST_P(SnapshotMetadataUpdaterTest, Delete) {
group_->mutable_partition_names()->RemoveLast();
// No need to delete it from manifest.partitions as SnapshotMetadataUpdater
// should ignore them (treat them as static partitions).
EXPECT_TRUE(UpdateAndExport());
EXPECT_TRUE(CheckSize("system", 2_GiB));
EXPECT_EQ(nullptr, builder_->FindPartition(T("vendor")));
}
TEST_P(SnapshotMetadataUpdaterTest, DeleteAndGrow) {
group_->mutable_partition_names()->RemoveLast();
SetSize(system_, 4_GiB);
EXPECT_TRUE(UpdateAndExport());
EXPECT_TRUE(CheckSize("system", 4_GiB));
}
TEST_P(SnapshotMetadataUpdaterTest, DeleteAndAdd) {
group_->mutable_partition_names()->RemoveLast();
group_->add_partition_names("product");
auto product = manifest_.add_partitions();
product->set_partition_name("product");
SetSize(product, 2_GiB);
EXPECT_TRUE(UpdateAndExport());
EXPECT_TRUE(CheckSize("system", 2_GiB));
EXPECT_EQ(nullptr, builder_->FindPartition(T("vendor")));
EXPECT_TRUE(CheckSize("product", 2_GiB));
}
TEST_P(SnapshotMetadataUpdaterTest, GrowGroup) {
group_->set_size(4_GiB + 512_KiB);
SetSize(system_, 2_GiB + 256_KiB);
SetSize(vendor_, 2_GiB + 256_KiB);
EXPECT_TRUE(UpdateAndExport());
EXPECT_TRUE(CheckSize("system", 2_GiB + 256_KiB));
EXPECT_TRUE(CheckSize("vendor", 2_GiB + 256_KiB));
}
TEST_P(SnapshotMetadataUpdaterTest, ShrinkGroup) {
group_->set_size(1_GiB);
SetSize(system_, 512_MiB);
SetSize(vendor_, 512_MiB);
EXPECT_TRUE(UpdateAndExport());
EXPECT_TRUE(CheckSize("system", 512_MiB));
EXPECT_TRUE(CheckSize("vendor", 512_MiB));
}
TEST_P(SnapshotMetadataUpdaterTest, MoveToNewGroup) {
group_->mutable_partition_names()->RemoveLast();
group_->set_size(2_GiB);
auto another_group = manifest_.mutable_dynamic_partition_metadata()->add_groups();
another_group->set_name("another_group");
another_group->set_size(2_GiB);
another_group->add_partition_names("vendor");
SetSize(vendor_, 2_GiB);
EXPECT_TRUE(UpdateAndExport());
EXPECT_TRUE(CheckGroupSize("group", 2_GiB));
EXPECT_TRUE(CheckGroupSize("another_group", 2_GiB));
EXPECT_TRUE(CheckSize("system", 2_GiB));
EXPECT_TRUE(CheckGroupName("system", "group"));
EXPECT_TRUE(CheckSize("vendor", 2_GiB));
EXPECT_TRUE(CheckGroupName("vendor", "another_group"));
}
TEST_P(SnapshotMetadataUpdaterTest, DeleteAndAddGroup) {
manifest_.mutable_dynamic_partition_metadata()->mutable_groups()->RemoveLast();
group_ = nullptr;
auto another_group = manifest_.mutable_dynamic_partition_metadata()->add_groups();
another_group->set_name("another_group");
another_group->set_size(4_GiB);
another_group->add_partition_names("system");
another_group->add_partition_names("vendor");
another_group->add_partition_names("product");
auto product = manifest_.add_partitions();
product->set_partition_name("product");
SetSize(product, 1_GiB);
EXPECT_TRUE(UpdateAndExport());
EXPECT_EQ(nullptr, builder_->FindGroup(T("group")));
EXPECT_TRUE(CheckGroupSize("another_group", 4_GiB));
EXPECT_TRUE(CheckSize("system", 2_GiB));
EXPECT_TRUE(CheckGroupName("system", "another_group"));
EXPECT_TRUE(CheckSize("vendor", 1_GiB));
EXPECT_TRUE(CheckGroupName("vendor", "another_group"));
EXPECT_TRUE(CheckSize("product", 1_GiB));
EXPECT_TRUE(CheckGroupName("product", "another_group"));
}
INSTANTIATE_TEST_SUITE_P(Snapshot, SnapshotMetadataUpdaterTest, testing::Values(0, 1));
} // namespace snapshot
} // namespace android