update_engine resize dynamic partitions during OTA.
update_engine uses device mapper to resize dynamic partitions
before opening the devices to apply the update.
* DeltaPerformer calls BootControlInterface::InitPartitionMetadata
when parsing the update manifest. The implementation for
BootControlAndroid::InitPartitionMetadata does the following
if sizes for dynamic partitions are incorrect (assuming updating
from slot A to B):
* Load metadata from metadata slot A
* Delete all extents of partitions at slot B (with _b suffix)
* Add extents for partitions at slot B
* Write metadata to metadata slot B
* Re-map all partitions at slot B using metadata slot B with
force_writable = true
* BootControlAndroid::GetPartitionDevice() checks device-mapper
before returning static partitions.
* PostinstallRunnerAction::Cleanup calls BootControlInterface::Cleanup
which unmaps all partitions at slot B.
A partition "foo" is considered dynamic if foo_a exists as a dynamic
partition OR foo_b does NOT exist as a static partition.
Bug: 110717529
Test: manual ota
Test: update_engine_unittests --gtest_filter=*BootControlAndroid*
Change-Id: I50f410b486a874242663624801c3694151bdda18
diff --git a/boot_control_android_unittest.cc b/boot_control_android_unittest.cc
new file mode 100644
index 0000000..9744b42
--- /dev/null
+++ b/boot_control_android_unittest.cc
@@ -0,0 +1,670 @@
+//
+// Copyright (C) 2018 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/boot_control_android.h"
+
+#include <set>
+
+#include <android-base/strings.h>
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+#include "update_engine/mock_boot_control_hal.h"
+#include "update_engine/mock_dynamic_partition_control.h"
+
+using android::base::Join;
+using android::fs_mgr::MetadataBuilder;
+using android::hardware::Void;
+using testing::_;
+using testing::AnyNumber;
+using testing::Contains;
+using testing::Eq;
+using testing::Invoke;
+using testing::Key;
+using testing::MakeMatcher;
+using testing::Matcher;
+using testing::MatcherInterface;
+using testing::MatchResultListener;
+using testing::NiceMock;
+using testing::Return;
+
+namespace chromeos_update_engine {
+
+constexpr const uint32_t kMaxNumSlots = 2;
+constexpr const char* kSlotSuffixes[kMaxNumSlots] = {"_a", "_b"};
+constexpr const char* kFakeDevicePath = "/fake/dev/path/";
+constexpr const char* kFakeMappedPath = "/fake/mapped/path/";
+constexpr const uint32_t kFakeMetadataSize = 65536;
+constexpr const char* kZeroGuid = "00000000-0000-0000-0000-000000000000";
+
+// A map describing the size of each partition.
+using PartitionSizes = std::map<std::string, uint64_t>;
+
+// C++ standards do not allow uint64_t (aka unsigned long) to be the parameter
+// of user-defined literal operators.
+unsigned long long operator"" _MiB(unsigned long long x) { // NOLINT
+ return x << 20;
+}
+unsigned long long operator"" _GiB(unsigned long long x) { // NOLINT
+ return x << 30;
+}
+
+template <typename U, typename V>
+std::ostream& operator<<(std::ostream& os, const std::map<U, V>& param) {
+ os << "{";
+ bool first = true;
+ for (const auto& pair : param) {
+ if (!first)
+ os << ", ";
+ os << pair.first << ":" << pair.second;
+ first = false;
+ }
+ return os << "}";
+}
+
+inline std::string GetDevice(const std::string& name) {
+ return kFakeDevicePath + name;
+}
+inline std::string GetSuperDevice() {
+ return GetDevice(LP_METADATA_PARTITION_NAME);
+}
+
+struct TestParam {
+ uint32_t source;
+ uint32_t target;
+};
+std::ostream& operator<<(std::ostream& os, const TestParam& param) {
+ return os << "{source: " << param.source << ", target:" << param.target
+ << "}";
+}
+
+std::unique_ptr<MetadataBuilder> NewFakeMetadata(const PartitionSizes& sizes) {
+ auto builder = MetadataBuilder::New(10_GiB, kFakeMetadataSize, kMaxNumSlots);
+ EXPECT_NE(nullptr, builder);
+ if (builder == nullptr)
+ return nullptr;
+ for (const auto& pair : sizes) {
+ auto p = builder->AddPartition(pair.first, kZeroGuid, 0 /* attr */);
+ EXPECT_TRUE(p && builder->ResizePartition(p, pair.second));
+ }
+ return builder;
+}
+
+class MetadataMatcher : public MatcherInterface<MetadataBuilder*> {
+ public:
+ explicit MetadataMatcher(const PartitionSizes& partition_sizes)
+ : partition_sizes_(partition_sizes) {}
+ bool MatchAndExplain(MetadataBuilder* metadata,
+ MatchResultListener* listener) const override {
+ bool success = true;
+ for (const auto& pair : partition_sizes_) {
+ auto p = metadata->FindPartition(pair.first);
+ if (p == nullptr) {
+ if (success)
+ *listener << "; ";
+ *listener << "No partition " << pair.first;
+ success = false;
+ continue;
+ }
+ if (p->size() != pair.second) {
+ if (success)
+ *listener << "; ";
+ *listener << "Partition " << pair.first << " has size " << p->size()
+ << ", expected " << pair.second;
+ success = false;
+ }
+ }
+ return success;
+ }
+
+ void DescribeTo(std::ostream* os) const override {
+ *os << "expect: " << partition_sizes_;
+ }
+
+ void DescribeNegationTo(std::ostream* os) const override {
+ *os << "expect not: " << partition_sizes_;
+ }
+
+ private:
+ PartitionSizes partition_sizes_;
+};
+
+inline Matcher<MetadataBuilder*> MetadataMatches(
+ const PartitionSizes& partition_sizes) {
+ return MakeMatcher(new MetadataMatcher(partition_sizes));
+}
+
+class BootControlAndroidTest : public ::testing::Test {
+ protected:
+ void SetUp() override {
+ // Fake init bootctl_
+ bootctl_.module_ = new NiceMock<MockBootControlHal>();
+ bootctl_.dynamic_control_ =
+ std::make_unique<NiceMock<MockDynamicPartitionControl>>();
+
+ ON_CALL(module(), getNumberSlots()).WillByDefault(Invoke([] {
+ return kMaxNumSlots;
+ }));
+ ON_CALL(module(), getSuffix(_, _))
+ .WillByDefault(Invoke([](auto slot, auto cb) {
+ EXPECT_LE(slot, kMaxNumSlots);
+ cb(slot < kMaxNumSlots ? kSlotSuffixes[slot] : "");
+ return Void();
+ }));
+
+ ON_CALL(dynamicControl(), IsDynamicPartitionsEnabled())
+ .WillByDefault(Return(true));
+ ON_CALL(dynamicControl(), GetDeviceDir(_))
+ .WillByDefault(Invoke([](auto path) {
+ *path = kFakeDevicePath;
+ return true;
+ }));
+ }
+
+ // Return the mocked HAL module.
+ NiceMock<MockBootControlHal>& module() {
+ return static_cast<NiceMock<MockBootControlHal>&>(*bootctl_.module_);
+ }
+
+ // Return the mocked DynamicPartitionControlInterface.
+ NiceMock<MockDynamicPartitionControl>& dynamicControl() {
+ return static_cast<NiceMock<MockDynamicPartitionControl>&>(
+ *bootctl_.dynamic_control_);
+ }
+
+ // Set the fake metadata to return when LoadMetadataBuilder is called on
+ // |slot|.
+ void SetMetadata(uint32_t slot, const PartitionSizes& sizes) {
+ EXPECT_CALL(dynamicControl(), LoadMetadataBuilder(GetSuperDevice(), slot))
+ .WillOnce(
+ Invoke([sizes](auto, auto) { return NewFakeMetadata(sizes); }));
+ }
+
+ // Expect that MapPartitionOnDeviceMapper is called on target() metadata slot
+ // with each partition in |partitions|.
+ void ExpectMap(const std::set<std::string>& partitions) {
+ // Error when MapPartitionOnDeviceMapper is called on unknown arguments.
+ ON_CALL(dynamicControl(), MapPartitionOnDeviceMapper(_, _, _, _))
+ .WillByDefault(Return(false));
+
+ for (const auto& partition : partitions) {
+ EXPECT_CALL(
+ dynamicControl(),
+ MapPartitionOnDeviceMapper(GetSuperDevice(), partition, target(), _))
+ .WillOnce(Invoke([this](auto, auto partition, auto, auto path) {
+ auto it = mapped_devices_.find(partition);
+ if (it != mapped_devices_.end()) {
+ *path = it->second;
+ return true;
+ }
+ mapped_devices_[partition] = *path = kFakeMappedPath + partition;
+ return true;
+ }));
+ }
+ }
+
+ // Expect that UnmapPartitionOnDeviceMapper is called on target() metadata
+ // slot with each partition in |partitions|.
+ void ExpectUnmap(const std::set<std::string>& partitions) {
+ // Error when UnmapPartitionOnDeviceMapper is called on unknown arguments.
+ ON_CALL(dynamicControl(), UnmapPartitionOnDeviceMapper(_, _))
+ .WillByDefault(Return(false));
+
+ for (const auto& partition : partitions) {
+ EXPECT_CALL(dynamicControl(), UnmapPartitionOnDeviceMapper(partition, _))
+ .WillOnce(Invoke([this](auto partition, auto) {
+ mapped_devices_.erase(partition);
+ return true;
+ }));
+ }
+ }
+
+ void ExpectRemap(const std::set<std::string>& partitions) {
+ ExpectUnmap(partitions);
+ ExpectMap(partitions);
+ }
+
+ void ExpectDevicesAreMapped(const std::set<std::string>& partitions) {
+ ASSERT_EQ(partitions.size(), mapped_devices_.size());
+ for (const auto& partition : partitions) {
+ EXPECT_THAT(mapped_devices_, Contains(Key(Eq(partition))))
+ << "Expect that " << partition << " is mapped, but it is not.";
+ }
+ }
+
+ uint32_t source() { return slots_.source; }
+
+ uint32_t target() { return slots_.target; }
+
+ // Return partition names with suffix of source().
+ std::string S(const std::string& name) {
+ return name + std::string(kSlotSuffixes[source()]);
+ }
+
+ // Return partition names with suffix of target().
+ std::string T(const std::string& name) {
+ return name + std::string(kSlotSuffixes[target()]);
+ }
+
+ // Set source and target slots to use before testing.
+ void SetSlots(const TestParam& slots) {
+ slots_ = slots;
+
+ ON_CALL(module(), getCurrentSlot()).WillByDefault(Invoke([this] {
+ return source();
+ }));
+ // Should not store metadata to source slot.
+ EXPECT_CALL(dynamicControl(), StoreMetadata(GetSuperDevice(), _, source()))
+ .Times(0);
+ }
+
+ BootControlAndroid bootctl_; // BootControlAndroid under test.
+ TestParam slots_;
+ // mapped devices through MapPartitionOnDeviceMapper.
+ std::map<std::string, std::string> mapped_devices_;
+};
+
+class BootControlAndroidTestP
+ : public BootControlAndroidTest,
+ public ::testing::WithParamInterface<TestParam> {
+ public:
+ void SetUp() override {
+ BootControlAndroidTest::SetUp();
+ SetSlots(GetParam());
+ }
+};
+
+// Test no resize if no dynamic partitions at all.
+TEST_P(BootControlAndroidTestP, NoResizeIfNoDynamicPartitions) {
+ SetMetadata(source(), {});
+ SetMetadata(target(), {});
+ // Should not need to resize and store metadata
+ EXPECT_CALL(dynamicControl(), StoreMetadata(GetSuperDevice(), _, target()))
+ .Times(0);
+ EXPECT_CALL(dynamicControl(), DeviceExists(Eq(GetDevice("static_a"))))
+ .Times(AnyNumber())
+ .WillRepeatedly(Return(true));
+ EXPECT_CALL(dynamicControl(), DeviceExists(Eq(GetDevice("static_b"))))
+ .Times(AnyNumber())
+ .WillRepeatedly(Return(true));
+
+ EXPECT_TRUE(bootctl_.InitPartitionMetadata(target(), {{"static", 1_GiB}}));
+ ExpectDevicesAreMapped({});
+}
+
+// Test no resize if update manifest does not contain any dynamic partitions
+TEST_P(BootControlAndroidTestP, NoResizeIfEmptyMetadata) {
+ SetMetadata(source(),
+ {{S("system"), 4_GiB},
+ {S("vendor"), 100_MiB},
+ {T("system"), 3_GiB},
+ {T("vendor"), 150_MiB}});
+ SetMetadata(target(),
+ {{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 3_GiB},
+ {T("vendor"), 150_MiB}});
+ // Should not need to resize and store metadata
+ EXPECT_CALL(dynamicControl(), StoreMetadata(GetSuperDevice(), _, target()))
+ .Times(0);
+ EXPECT_CALL(dynamicControl(), DeviceExists(Eq(GetDevice("static_a"))))
+ .Times(AnyNumber())
+ .WillRepeatedly(Return(true));
+ EXPECT_CALL(dynamicControl(), DeviceExists(Eq(GetDevice("static_b"))))
+ .Times(AnyNumber())
+ .WillRepeatedly(Return(true));
+
+ EXPECT_TRUE(bootctl_.InitPartitionMetadata(target(), {{"static", 1_GiB}}));
+ ExpectDevicesAreMapped({});
+}
+
+// Do not resize if manifest size matches size in target metadata. When resuming
+// from an update, do not redo the resize if not needed.
+TEST_P(BootControlAndroidTestP, NoResizeIfSizeMatchWhenResizing) {
+ SetMetadata(source(), {{S("system"), 2_GiB}, {S("vendor"), 1_GiB}});
+ SetMetadata(target(),
+ {{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 3_GiB},
+ {T("vendor"), 1_GiB}});
+ // Should not need to resize and store metadata
+ EXPECT_CALL(dynamicControl(), StoreMetadata(GetSuperDevice(), _, target()))
+ .Times(0);
+ ExpectRemap({T("system"), T("vendor")});
+
+ EXPECT_TRUE(bootctl_.InitPartitionMetadata(
+ target(), {{"system", 3_GiB}, {"vendor", 1_GiB}}));
+ ExpectDevicesAreMapped({T("system"), T("vendor")});
+}
+
+// Do not resize if manifest size matches size in target metadata. When resuming
+// from an update, do not redo the resize if not needed.
+TEST_P(BootControlAndroidTestP, NoResizeIfSizeMatchWhenAdding) {
+ SetMetadata(source(), {{S("system"), 2_GiB}, {T("system"), 2_GiB}});
+ SetMetadata(
+ target(),
+ {{S("system"), 2_GiB}, {T("system"), 2_GiB}, {T("vendor"), 1_GiB}});
+ // Should not need to resize and store metadata
+ EXPECT_CALL(dynamicControl(), StoreMetadata(GetSuperDevice(), _, target()))
+ .Times(0);
+ ExpectRemap({T("system"), T("vendor")});
+
+ EXPECT_TRUE(bootctl_.InitPartitionMetadata(
+ target(), {{"system", 2_GiB}, {"vendor", 1_GiB}}));
+ ExpectDevicesAreMapped({T("system"), T("vendor")});
+}
+
+// Do not resize if manifest size matches size in target metadata. When resuming
+// from an update, do not redo the resize if not needed.
+TEST_P(BootControlAndroidTestP, NoResizeIfSizeMatchWhenDeleting) {
+ SetMetadata(source(),
+ {{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 2_GiB},
+ {T("vendor"), 1_GiB}});
+ SetMetadata(target(),
+ {{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 2_GiB},
+ {T("vendor"), 0}});
+ // Should not need to resize and store metadata
+ EXPECT_CALL(dynamicControl(), StoreMetadata(GetSuperDevice(), _, target()))
+ .Times(0);
+ ExpectUnmap({T("system"), T("vendor")});
+ ExpectMap({T("system")});
+
+ EXPECT_TRUE(bootctl_.InitPartitionMetadata(
+ target(), {{"system", 2_GiB}, {"vendor", 0}}));
+ ExpectDevicesAreMapped({T("system")});
+}
+
+// Test resize case. Grow if target metadata contains a partition with a size
+// less than expected.
+TEST_P(BootControlAndroidTestP, NeedGrowIfSizeNotMatchWhenResizing) {
+ PartitionSizes initial{{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 2_GiB},
+ {T("vendor"), 1_GiB}};
+ SetMetadata(source(), initial);
+ SetMetadata(target(), initial);
+ EXPECT_CALL(dynamicControl(),
+ StoreMetadata(GetSuperDevice(),
+ MetadataMatches({{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 3_GiB},
+ {T("vendor"), 1_GiB}}),
+ target()))
+ .WillOnce(Return(true));
+ ExpectRemap({T("system"), T("vendor")});
+
+ EXPECT_TRUE(bootctl_.InitPartitionMetadata(
+ target(), {{"system", 3_GiB}, {"vendor", 1_GiB}}));
+ ExpectDevicesAreMapped({T("system"), T("vendor")});
+}
+
+// Test resize case. Shrink if target metadata contains a partition with a size
+// greater than expected.
+TEST_P(BootControlAndroidTestP, NeedShrinkIfSizeNotMatchWhenResizing) {
+ PartitionSizes initial{{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 2_GiB},
+ {T("vendor"), 1_GiB}};
+ SetMetadata(source(), initial);
+ SetMetadata(target(), initial);
+ EXPECT_CALL(dynamicControl(),
+ StoreMetadata(GetSuperDevice(),
+ MetadataMatches({{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 2_GiB},
+ {T("vendor"), 150_MiB}}),
+ target()))
+ .WillOnce(Return(true));
+ ExpectRemap({T("system"), T("vendor")});
+
+ EXPECT_TRUE(bootctl_.InitPartitionMetadata(
+ target(), {{"system", 2_GiB}, {"vendor", 150_MiB}}));
+ ExpectDevicesAreMapped({T("system"), T("vendor")});
+}
+
+// Test adding partitions on the first run.
+TEST_P(BootControlAndroidTestP, AddPartitionToEmptyMetadata) {
+ SetMetadata(source(), {});
+ SetMetadata(target(), {});
+ EXPECT_CALL(dynamicControl(),
+ StoreMetadata(
+ GetSuperDevice(),
+ MetadataMatches({{T("system"), 2_GiB}, {T("vendor"), 1_GiB}}),
+ target()))
+ .WillOnce(Return(true));
+ ExpectRemap({T("system"), T("vendor")});
+
+ EXPECT_TRUE(bootctl_.InitPartitionMetadata(
+ target(), {{"system", 2_GiB}, {"vendor", 1_GiB}}));
+ ExpectDevicesAreMapped({T("system"), T("vendor")});
+}
+
+// Test subsequent add case.
+TEST_P(BootControlAndroidTestP, AddAdditionalPartition) {
+ SetMetadata(source(), {{S("system"), 2_GiB}, {T("system"), 2_GiB}});
+ SetMetadata(target(), {{S("system"), 2_GiB}, {T("system"), 2_GiB}});
+ EXPECT_CALL(dynamicControl(),
+ StoreMetadata(GetSuperDevice(),
+ MetadataMatches({{S("system"), 2_GiB},
+ {T("system"), 2_GiB},
+ {T("vendor"), 1_GiB}}),
+ target()))
+ .WillOnce(Return(true));
+ ExpectRemap({T("system"), T("vendor")});
+
+ EXPECT_TRUE(bootctl_.InitPartitionMetadata(
+ target(), {{"system", 2_GiB}, {"vendor", 1_GiB}}));
+ ExpectDevicesAreMapped({T("system"), T("vendor")});
+}
+
+// Test delete one partition.
+TEST_P(BootControlAndroidTestP, DeletePartition) {
+ PartitionSizes initial{{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 2_GiB},
+ {T("vendor"), 1_GiB}};
+ SetMetadata(source(), initial);
+ SetMetadata(target(), initial);
+ EXPECT_CALL(dynamicControl(),
+ StoreMetadata(GetSuperDevice(),
+ MetadataMatches({{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 2_GiB},
+ {T("vendor"), 0}}),
+ target()))
+ .WillOnce(Return(true));
+ ExpectUnmap({T("system"), T("vendor")});
+ ExpectMap({T("system")});
+
+ EXPECT_TRUE(bootctl_.InitPartitionMetadata(
+ target(), {{"system", 2_GiB}, {"vendor", 0}}));
+ ExpectDevicesAreMapped({T("system")});
+}
+
+// Test delete all partitions.
+TEST_P(BootControlAndroidTestP, DeleteAll) {
+ PartitionSizes initial{{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 2_GiB},
+ {T("vendor"), 1_GiB}};
+ SetMetadata(source(), initial);
+ SetMetadata(target(), initial);
+ EXPECT_CALL(dynamicControl(),
+ StoreMetadata(GetSuperDevice(),
+ MetadataMatches({{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 0},
+ {T("vendor"), 0}}),
+ target()))
+ .WillOnce(Return(true));
+ ExpectUnmap({T("system"), T("vendor")});
+ ExpectMap({});
+
+ EXPECT_TRUE(
+ bootctl_.InitPartitionMetadata(target(), {{"system", 0}, {"vendor", 0}}));
+ ExpectDevicesAreMapped({});
+}
+
+// Test corrupt source metadata case. This shouldn't happen in practice,
+// because the device is already booted normally.
+TEST_P(BootControlAndroidTestP, CorruptedSourceMetadata) {
+ EXPECT_CALL(dynamicControl(), LoadMetadataBuilder(GetSuperDevice(), source()))
+ .WillOnce(Invoke([](auto, auto) { return nullptr; }));
+ EXPECT_FALSE(bootctl_.InitPartitionMetadata(target(), {}))
+ << "Should not be able to continue with corrupt source metadata";
+}
+
+// Test corrupt target metadata case. This may happen in practice.
+// BootControlAndroid should copy from source metadata and make necessary
+// modifications on it.
+TEST_P(BootControlAndroidTestP, CorruptedTargetMetadata) {
+ SetMetadata(source(),
+ {{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 0},
+ {T("vendor"), 0}});
+ EXPECT_CALL(dynamicControl(), LoadMetadataBuilder(GetSuperDevice(), target()))
+ .WillOnce(Invoke([](auto, auto) { return nullptr; }));
+ EXPECT_CALL(dynamicControl(),
+ StoreMetadata(GetSuperDevice(),
+ MetadataMatches({{S("system"), 2_GiB},
+ {S("vendor"), 1_GiB},
+ {T("system"), 3_GiB},
+ {T("vendor"), 150_MiB}}),
+ target()))
+ .WillOnce(Return(true));
+ ExpectRemap({T("system"), T("vendor")});
+ EXPECT_TRUE(bootctl_.InitPartitionMetadata(
+ target(), {{"system", 3_GiB}, {"vendor", 150_MiB}}));
+ ExpectDevicesAreMapped({T("system"), T("vendor")});
+}
+
+// Test that InitPartitionMetadata fail if there is not enough space on the
+// device.
+TEST_P(BootControlAndroidTestP, NotEnoughSpace) {
+ PartitionSizes initial{{S("system"), 3_GiB},
+ {S("vendor"), 2_GiB},
+ {T("system"), 0},
+ {T("vendor"), 0}};
+ SetMetadata(source(), initial);
+ SetMetadata(target(), initial);
+ EXPECT_FALSE(bootctl_.InitPartitionMetadata(
+ target(), {{"system", 3_GiB}, {"vendor", 3_GiB}}))
+ << "Should not be able to fit 11GiB data into 10GiB space";
+}
+
+INSTANTIATE_TEST_CASE_P(ParamTest,
+ BootControlAndroidTestP,
+ testing::Values(TestParam{0, 1}, TestParam{1, 0}));
+
+const PartitionSizes update_sizes_0() {
+ return {{"grown_a", 2_GiB},
+ {"shrunk_a", 1_GiB},
+ {"same_a", 100_MiB},
+ {"deleted_a", 150_MiB},
+ {"grown_b", 200_MiB},
+ {"shrunk_b", 0},
+ {"same_b", 0}};
+}
+
+const PartitionSizes update_sizes_1() {
+ return {
+ {"grown_a", 2_GiB},
+ {"shrunk_a", 1_GiB},
+ {"same_a", 100_MiB},
+ {"deleted_a", 150_MiB},
+ {"grown_b", 3_GiB},
+ {"shrunk_b", 150_MiB},
+ {"same_b", 100_MiB},
+ {"added_b", 150_MiB},
+ {"deleted_b", 0},
+ };
+}
+
+const PartitionSizes update_sizes_2() {
+ return {{"grown_a", 4_GiB},
+ {"shrunk_a", 100_MiB},
+ {"same_a", 100_MiB},
+ {"added_a", 0_MiB},
+ {"deleted_a", 64_MiB},
+ {"grown_b", 3_GiB},
+ {"shrunk_b", 150_MiB},
+ {"same_b", 100_MiB},
+ {"added_b", 150_MiB},
+ {"deleted_b", 0}};
+}
+
+// Test case for first update after the device is manufactured, in which
+// case the "other" slot is likely of size "0" (except system, which is
+// non-zero because of system_other partition)
+TEST_F(BootControlAndroidTest, SimulatedFirstUpdate) {
+ SetSlots({0, 1});
+
+ SetMetadata(source(), update_sizes_0());
+ SetMetadata(target(), update_sizes_0());
+ EXPECT_CALL(
+ dynamicControl(),
+ StoreMetadata(
+ GetSuperDevice(), MetadataMatches(update_sizes_1()), target()))
+ .WillOnce(Return(true));
+ ExpectUnmap({"grown_b", "shrunk_b", "same_b", "added_b", "deleted_b"});
+ ExpectMap({"grown_b", "shrunk_b", "same_b", "added_b"});
+
+ EXPECT_TRUE(bootctl_.InitPartitionMetadata(target(),
+ {{"grown", 3_GiB},
+ {"shrunk", 150_MiB},
+ {"same", 100_MiB},
+ {"added", 150_MiB},
+ {"deleted", 0_MiB}}));
+ ExpectDevicesAreMapped({"grown_b", "shrunk_b", "same_b", "added_b"});
+}
+
+// After first update, test for the second update. In the second update, the
+// "added" partition is deleted and "deleted" partition is re-added.
+TEST_F(BootControlAndroidTest, SimulatedSecondUpdate) {
+ SetSlots({1, 0});
+
+ SetMetadata(source(), update_sizes_1());
+ SetMetadata(target(), update_sizes_0());
+
+ EXPECT_CALL(
+ dynamicControl(),
+ StoreMetadata(
+ GetSuperDevice(), MetadataMatches(update_sizes_2()), target()))
+ .WillOnce(Return(true));
+ ExpectUnmap({"grown_a", "shrunk_a", "same_a", "added_a", "deleted_a"});
+ ExpectMap({"grown_a", "shrunk_a", "same_a", "deleted_a"});
+
+ EXPECT_TRUE(bootctl_.InitPartitionMetadata(target(),
+ {{"grown", 4_GiB},
+ {"shrunk", 100_MiB},
+ {"same", 100_MiB},
+ {"added", 0_MiB},
+ {"deleted", 64_MiB}}));
+ ExpectDevicesAreMapped({"grown_a", "shrunk_a", "same_a", "deleted_a"});
+}
+
+TEST_F(BootControlAndroidTest, ApplyingToCurrentSlot) {
+ SetSlots({1, 1});
+ EXPECT_FALSE(bootctl_.InitPartitionMetadata(target(), {}))
+ << "Should not be able to apply to current slot.";
+}
+
+} // namespace chromeos_update_engine