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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 <string>
#include <tuple>
#include <android-base/macros.h>
#include <gtest/gtest.h>
#include "apex_database.h"
namespace android {
namespace apex {
namespace {
using MountedApexData = MountedApexDatabase::MountedApexData;
TEST(MountedApexDataTest, LinearOrder) {
constexpr const char* kLoopName[] = {"loop1", "loop2", "loop3"};
constexpr const char* kPath[] = {"path1", "path2", "path3"};
constexpr const char* kMount[] = {"mount1", "mount2", "mount3"};
constexpr const char* kDm[] = {"dm1", "dm2", "dm3"};
constexpr const char* kHashtreeLoopName[] = {"hash-loop1", "hash-loop2",
"hash-loop3"};
constexpr size_t kCount = arraysize(kLoopName) * arraysize(kPath) *
arraysize(kMount) * arraysize(kDm);
auto index_fn = [&](size_t i) {
const size_t loop_index = i % arraysize(kLoopName);
const size_t loop_rest = i / arraysize(kLoopName);
const size_t path_index = loop_rest % arraysize(kPath);
const size_t path_rest = loop_rest / arraysize(kPath);
const size_t mount_index = path_rest % arraysize(kMount);
const size_t mount_rest = path_rest / arraysize(kMount);
const size_t dm_index = mount_rest % arraysize(kDm);
const size_t dm_rest = mount_rest / arraysize(kHashtreeLoopName);
const size_t hashtree_loop_index = dm_rest % arraysize(kHashtreeLoopName);
CHECK_EQ(dm_rest / arraysize(kHashtreeLoopName), 0u);
return std::make_tuple(loop_index, path_index, mount_index, dm_index,
hashtree_loop_index);
};
MountedApexData data[kCount];
for (size_t i = 0; i < kCount; ++i) {
size_t loop_idx, path_idx, mount_idx, dm_idx, hash_loop_idx;
std::tie(loop_idx, path_idx, mount_idx, dm_idx, hash_loop_idx) =
index_fn(i);
data[i] =
MountedApexData(kLoopName[loop_idx], kPath[path_idx], kMount[mount_idx],
kDm[dm_idx], kHashtreeLoopName[hash_loop_idx]);
}
for (size_t i = 0; i < kCount; ++i) {
size_t loop_idx_i, path_idx_i, mount_idx_i, dm_idx_i, hash_loop_idx_i;
std::tie(loop_idx_i, path_idx_i, mount_idx_i, dm_idx_i, hash_loop_idx_i) =
index_fn(i);
for (size_t j = i; j < kCount; ++j) {
size_t loop_idx_j, path_idx_j, mount_idx_j, dm_idx_j, hash_loop_idx_j;
std::tie(loop_idx_j, path_idx_j, mount_idx_j, dm_idx_j, hash_loop_idx_j) =
index_fn(j);
if (loop_idx_i != loop_idx_j) {
EXPECT_EQ(loop_idx_i < loop_idx_j, data[i] < data[j]);
continue;
}
if (path_idx_i != path_idx_j) {
EXPECT_EQ(path_idx_i < path_idx_j, data[i] < data[j]);
continue;
}
if (mount_idx_i != mount_idx_j) {
EXPECT_EQ(mount_idx_i < mount_idx_j, data[i] < data[j]);
continue;
}
if (dm_idx_i != dm_idx_j) {
EXPECT_EQ(dm_idx_i < dm_idx_j, data[i] < data[j]);
continue;
}
EXPECT_EQ(hash_loop_idx_i < hash_loop_idx_j, data[i] < data[j]);
}
}
}
size_t CountPackages(const MountedApexDatabase& db) {
size_t ret = 0;
db.ForallMountedApexes([&ret](const std::string& a ATTRIBUTE_UNUSED,
const MountedApexData& b ATTRIBUTE_UNUSED,
bool c ATTRIBUTE_UNUSED) { ++ret; });
return ret;
}
bool Contains(const MountedApexDatabase& db, const std::string& package,
const std::string& loop_name, const std::string& full_path,
const std::string& mount_point, const std::string& device_name,
const std::string& hashtree_loop_name) {
bool found = false;
db.ForallMountedApexes([&](const std::string& p, const MountedApexData& d,
bool b ATTRIBUTE_UNUSED) {
if (package == p && loop_name == d.loop_name && full_path == d.full_path &&
mount_point == d.mount_point && device_name == d.device_name &&
hashtree_loop_name == d.hashtree_loop_name) {
found = true;
}
});
return found;
}
bool ContainsPackage(const MountedApexDatabase& db, const std::string& package,
const std::string& loop_name, const std::string& full_path,
const std::string& dm,
const std::string& hashtree_loop_name) {
bool found = false;
db.ForallMountedApexes(
package, [&](const MountedApexData& d, bool b ATTRIBUTE_UNUSED) {
if (loop_name == d.loop_name && full_path == d.full_path &&
dm == d.device_name && hashtree_loop_name == d.hashtree_loop_name) {
found = true;
}
});
return found;
}
TEST(ApexDatabaseTest, AddRemovedMountedApex) {
constexpr const char* kPackage = "package";
constexpr const char* kLoopName = "loop";
constexpr const char* kPath = "path";
constexpr const char* kMountPoint = "mount";
constexpr const char* kDeviceName = "dev";
constexpr const char* kHashtreeLoopName = "hash-loop";
MountedApexDatabase db;
ASSERT_EQ(CountPackages(db), 0u);
db.AddMountedApex(kPackage, false, kLoopName, kPath, kMountPoint, kDeviceName,
kHashtreeLoopName);
ASSERT_TRUE(Contains(db, kPackage, kLoopName, kPath, kMountPoint, kDeviceName,
kHashtreeLoopName));
ASSERT_TRUE(ContainsPackage(db, kPackage, kLoopName, kPath, kDeviceName,
kHashtreeLoopName));
db.RemoveMountedApex(kPackage, kPath);
EXPECT_FALSE(Contains(db, kPackage, kLoopName, kPath, kMountPoint,
kDeviceName, kHashtreeLoopName));
EXPECT_FALSE(ContainsPackage(db, kPackage, kLoopName, kPath, kDeviceName,
kHashtreeLoopName));
}
TEST(ApexDatabaseTest, MountMultiple) {
constexpr const char* kPackage[] = {"package", "package", "package",
"package"};
constexpr const char* kLoopName[] = {"loop", "loop2", "loop3", "loop4"};
constexpr const char* kPath[] = {"path", "path2", "path", "path4"};
constexpr const char* kMountPoint[] = {"mount", "mount2", "mount", "mount4"};
constexpr const char* kDeviceName[] = {"dev", "dev2", "dev3", "dev4"};
constexpr const char* kHashtreeLoopName[] = {"hash-loop", "hash-loop2",
"hash-loop3", "hash-loop4"};
MountedApexDatabase db;
ASSERT_EQ(CountPackages(db), 0u);
for (size_t i = 0; i < arraysize(kPackage); ++i) {
db.AddMountedApex(kPackage[i], false, kLoopName[i], kPath[i],
kMountPoint[i], kDeviceName[i], kHashtreeLoopName[i]);
}
ASSERT_EQ(CountPackages(db), 4u);
for (size_t i = 0; i < arraysize(kPackage); ++i) {
ASSERT_TRUE(Contains(db, kPackage[i], kLoopName[i], kPath[i],
kMountPoint[i], kDeviceName[i], kHashtreeLoopName[i]));
ASSERT_TRUE(ContainsPackage(db, kPackage[i], kLoopName[i], kPath[i],
kDeviceName[i], kHashtreeLoopName[i]));
}
db.RemoveMountedApex(kPackage[0], kPath[0]);
EXPECT_FALSE(Contains(db, kPackage[0], kLoopName[0], kPath[0], kMountPoint[0],
kDeviceName[0], kHashtreeLoopName[0]));
EXPECT_FALSE(ContainsPackage(db, kPackage[0], kLoopName[0], kPath[0],
kDeviceName[0], kHashtreeLoopName[0]));
EXPECT_TRUE(Contains(db, kPackage[1], kLoopName[1], kPath[1], kMountPoint[1],
kDeviceName[1], kHashtreeLoopName[1]));
EXPECT_TRUE(ContainsPackage(db, kPackage[1], kLoopName[1], kPath[1],
kDeviceName[1], kHashtreeLoopName[1]));
EXPECT_TRUE(Contains(db, kPackage[2], kLoopName[2], kPath[2], kMountPoint[2],
kDeviceName[2], kHashtreeLoopName[2]));
EXPECT_TRUE(ContainsPackage(db, kPackage[2], kLoopName[2], kPath[2],
kDeviceName[2], kHashtreeLoopName[2]));
EXPECT_TRUE(Contains(db, kPackage[3], kLoopName[3], kPath[3], kMountPoint[3],
kDeviceName[3], kHashtreeLoopName[3]));
EXPECT_TRUE(ContainsPackage(db, kPackage[3], kLoopName[3], kPath[3],
kDeviceName[3], kHashtreeLoopName[3]));
}
#pragma clang diagnostic push
// error: 'ReturnSentinel' was marked unused but was used
// [-Werror,-Wused-but-marked-unused]
#pragma clang diagnostic ignored "-Wused-but-marked-unused"
TEST(MountedApexDataTest, NoDuplicateLoopDataLoopDevices) {
ASSERT_DEATH(
{
MountedApexDatabase db;
db.AddMountedApex("package", false, "loop", "path", "mount", "dm",
"hashtree-loop1");
db.AddMountedApex("package2", false, "loop", "path2", "mount2", "dm2",
"hashtree-loop2");
},
"Duplicate loop device: loop");
}
TEST(MountedApexDataTest, NoDuplicateLoopHashtreeLoopDevices) {
ASSERT_DEATH(
{
MountedApexDatabase db;
db.AddMountedApex("package", false, "loop1", "path", "mount", "dm",
"hashtree-loop");
db.AddMountedApex("package2", false, "loop2", "path2", "mount2", "dm2",
"hashtree-loop");
},
"Duplicate loop device: hashtree-loop");
}
TEST(MountedApexDataTest, NoDuplicateLoopHashtreeAndDataLoopDevices) {
ASSERT_DEATH(
{
MountedApexDatabase db;
db.AddMountedApex("package", false, "loop", "path", "mount", "dm",
"hashtree-loop1");
db.AddMountedApex("package2", false, "loop2", "path2", "mount2", "dm2",
"loop");
},
"Duplicate loop device: loop");
}
TEST(MountedApexDataTest, NoDuplicateDm) {
ASSERT_DEATH(
{
MountedApexDatabase db;
db.AddMountedApex("package", false, "loop", "path", "mount", "dm",
/* hashtree_loop_name= */ "");
db.AddMountedApex("package2", false, "loop2", "path2", "mount2", "dm",
/* hashtree_loop_name= */ "");
},
"Duplicate dm device: dm");
}
#pragma clang diagnostic pop
} // namespace
} // namespace apex
} // namespace android
int main(int argc, char** argv) {
android::base::InitLogging(argv, &android::base::StderrLogger);
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}